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Resource "SearchParameter" Version "1" (StructureDefinition)

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NameFlagsCard.TypeDescription & Constraintsdoco
.. SearchParameter IDomainResourceSearch Parameter for a resource
+ If an xpath is present, there SHALL be an xpathUsage
+ Search parameters can only have chain names when the search parameter type is 'reference'
Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
... url Σ1..1uriLogical URI to reference this search parameter (globally unique)
... version Σ0..1stringBusiness version of the search parameter
... name Σ1..1stringName for this search parameter (computer friendly)
... status ?!Σ1..1codedraft | active | retired | unknown
PublicationStatus (Required)
... experimental ?!Σ0..1booleanFor testing purposes, not real usage
... date Σ0..1dateTimeDate this was last changed
... publisher Σ0..1stringName of the publisher (organization or individual)
... contact Σ0..*ContactDetailContact details for the publisher
... useContext Σ0..*UsageContextContext the content is intended to support
... jurisdiction Σ0..*CodeableConceptIntended jurisdiction for search parameter (if applicable)
Jurisdiction ValueSet (Extensible)
... purpose 0..1markdownWhy this search parameter is defined
... code Σ1..1codeCode used in URL
... base Σ1..*codeThe resource type(s) this search parameter applies to
ResourceType (Required)
... type Σ1..1codenumber | date | string | token | reference | composite | quantity | uri
SearchParamType (Required)
... derivedFrom 0..1uriOriginal Definition for the search parameter
... description Σ1..1markdownNatural language description of the search parameter
... expression I0..1stringFHIRPath expression that extracts the values
... xpath I0..1stringXPath that extracts the values
... xpathUsage I0..1codenormal | phonetic | nearby | distance | other
XPathUsageType (Required)
... target 0..*codeTypes of resource (if a resource reference)
ResourceType (Required)
... comparator 0..*codeeq | ne | gt | lt | ge | le | sa | eb | ap
SearchComparator (Required)
... modifier 0..*codemissing | exact | contains | not | text | in | not-in | below | above | type
SearchModifierCode (Required)
... chain 0..*stringChained names supported
... component 0..*BackboneElementFor Composite resources to define the parts
.... definition 1..1Reference(SearchParameter)Defines how the part works
.... expression 1..1stringSubexpression relative to main expression

doco Documentation for this format

<?xml version="1.0" encoding="UTF-8"?>
<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="SearchParameter"/>
  <meta>
    <versionId value="1"/>
    <lastUpdated value="2017-09-26T22:00:44Z"/>
  </meta>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
      <table style="border: 0px #F0F0F0 solid font-size: 11px font-family: verdana vertical-align: top" border="0" cellpadding="0" cellspacing="0">
        <tr style="border: 1px #F0F0F0 solid font-size: 11px font-family: verdana vertical-align: top">
          <th style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a title="The logical name of the element" href="formats.html#table">Name</a>
          </th>
          <th style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a title="Information about the use of the element" href="formats.html#table">Flags</a>
          </th>
          <th style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a title="Minimum and Maximum # of times the the element can appear in the instance" href="formats.html#table">Card.</a>
          </th>
          <th style="width: 100px" class="hierarchy">
            <a title="Reference to the type of the element" href="formats.html#table">Type</a>
          </th>
          <th style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a title="Additional information about the element" href="formats.html#table">Description &amp; Constraints</a>
            <span style="float: right">
              <a title="Legend for this format" href="formats.html#table">
                <img alt="doco" style="background-color: inherit"/>
              </a>
            </span>
          </th>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,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" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Resource"/>
            <span title="SearchParameter : A search parameter that defines a named search item that can be used to search/filter on a resource.">SearchParameter</span>
            <a name="SearchParameter"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element has or is affected by some invariants">I</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="domainresource.html">DomainResource</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Search Parameter for a resource
            <br/>
            <span style="font-style: italic" title="spd-1">+ If an xpath is present, there SHALL be an xpathUsage</span>
            <br/>
            <span style="font-style: italic" title="spd-2">+ Search parameters can only have chain names when the search parameter type is 'reference'</span>
            <br/>Elements defined in Ancestors:
            <a title="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes." href="resource.html#Resource">id</a>,
            <a title="The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content may not always be associated with version changes to the resource." href="resource.html#Resource">meta</a>,
            <a title="A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content." href="resource.html#Resource">implicitRules</a>,
            <a title="The base language in which the resource is written." href="resource.html#Resource">language</a>,
            <a title="A human-readable narrative that contains a summary of the resource, and may be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it &quot;clinically safe&quot; for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety." href="domainresource.html#DomainResource">text</a>,
            <a title="These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope." href="domainresource.html#DomainResource">contained</a>,
            <a title="May be used to represent additional information that is not part of the basic definition of the resource. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." href="domainresource.html#DomainResource">extension</a>,
            <a title="May be used to represent additional information that is not part of the basic definition of the resource, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions." href="domainresource.html#DomainResource">modifierExtension</a>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.url : An absolute URI that is used to identify this search parameter when it is referenced in a specification, model, design or an instance. This SHALL be a URL, SHOULD be globally unique, and SHOULD be an address at which this search parameter is (or will be) published. The URL SHOULD include the major version of the search parameter. For more information see [Technical and Business Versions](resource.html#versions).">url</span>
            <a name="SearchParameter.url"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#uri">uri</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Logical URI to reference this search parameter (globally unique)</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.version : The identifier that is used to identify this version of the search parameter when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the search parameter author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence.">version</span>
            <a name="SearchParameter.version"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Business version of the search parameter</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.name : A natural language name identifying the search parameter. This name should be usable as an identifier for the module by machine processing applications such as code generation.">name</span>
            <a name="SearchParameter.name"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Name for this search parameter (computer friendly)</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.status : The status of this search parameter. Enables tracking the life-cycle of the content.">status</span>
            <a name="SearchParameter.status"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is a modifier element">?!</span>
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">draft | active | retired | unknown
            <br/>
            <a title="The lifecycle status of a Value Set or Concept Map." href="valueset-publication-status.html">PublicationStatus</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.experimental : A boolean value to indicate that this search parameter is authored for testing purposes (or education/evaluation/marketing), and is not intended to be used for genuine usage.">experimental</span>
            <a name="SearchParameter.experimental"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is a modifier element">?!</span>
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#boolean">boolean</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">For testing purposes, not real usage</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.date : The date (and optionally time) when the search parameter was published. The date must change if and when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the search parameter changes.">date</span>
            <a name="SearchParameter.date"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#dateTime">dateTime</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Date this was last changed</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.publisher : The name of the individual or organization that published the search parameter.">publisher</span>
            <a name="SearchParameter.publisher"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Name of the publisher (organization or individual)</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,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" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Data Type"/>
            <span title="SearchParameter.contact : Contact details to assist a user in finding and communicating with the publisher.">contact</span>
            <a name="SearchParameter.contact"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="metadatatypes.html#ContactDetail">ContactDetail</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Contact details for the publisher
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,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" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Data Type"/>
            <span title="SearchParameter.useContext : The content was developed with a focus and intent of supporting the contexts that are listed. These terms may be used to assist with indexing and searching for appropriate search parameter instances.">useContext</span>
            <a name="SearchParameter.useContext"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="metadatatypes.html#UsageContext">UsageContext</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Context the content is intended to support
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,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" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Data Type"/>
            <span title="SearchParameter.jurisdiction : A legal or geographic region in which the search parameter is intended to be used.">jurisdiction</span>
            <a name="SearchParameter.jurisdiction"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#CodeableConcept">CodeableConcept</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Intended jurisdiction for search parameter (if applicable)
            <br/>
            <a title="Countries and regions within which this artifact is targeted for use" href="valueset-jurisdiction.html">Jurisdiction ValueSet</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated. If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead." href="terminologies.html#extensible">Extensible</a>)
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.purpose : Explaination of why this search parameter is needed and why it has been designed as it has.">purpose</span>
            <a name="SearchParameter.purpose"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#markdown">markdown</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Why this search parameter is defined</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.code : The code used in the URL or the parameter name in a parameters resource for this search parameter.">code</span>
            <a name="SearchParameter.code"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Code used in URL</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.base : The base resource type(s) that this search parameter can be used against.">base</span>
            <a name="SearchParameter.base"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">The resource type(s) this search parameter applies to
            <br/>
            <a title="One of the resource types defined as part of FHIR." href="valueset-resource-types.html">ResourceType</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.type : The type of value a search parameter refers to, and how the content is interpreted.">type</span>
            <a name="SearchParameter.type"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">number | date | string | token | reference | composite | quantity | uri
            <br/>
            <a title="Data types allowed to be used for search parameters." href="valueset-search-param-type.html">SearchParamType</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.derivedFrom : Where this search parameter is originally defined. If a derivedFrom is provided, then the details in the search parameter must be consistent with the definition from which it is defined. I.e. the parameter should have the same meaning, and (usually) the functionality should be a proper subset of the underlying search parameter.">derivedFrom</span>
            <a name="SearchParameter.derivedFrom"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#uri">uri</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Original Definition for the search parameter</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.description : A free text natural language description of the search parameter from a consumer's perspective. and how it used.">description</span>
            <a name="SearchParameter.description"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#markdown">markdown</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Natural language description of the search parameter</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.expression : A FHIRPath expression that returns a set of elements for the search parameter.">expression</span>
            <a name="SearchParameter.expression"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element has or is affected by some invariants">I</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">FHIRPath expression that extracts the values</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.xpath : An XPath expression that returns a set of elements for the search parameter.">xpath</span>
            <a name="SearchParameter.xpath"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element has or is affected by some invariants">I</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">XPath that extracts the values</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.xpathUsage : How the search parameter relates to the set of elements returned by evaluating the xpath query.">xpathUsage</span>
            <a name="SearchParameter.xpathUsage"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <span style="padding: 3px" title="This element has or is affected by some invariants">I</span>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">normal | phonetic | nearby | distance | other
            <br/>
            <a title="How a search parameter relates to the set of elements returned by evaluating its xpath query." href="valueset-search-xpath-usage.html">XPathUsageType</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.target : Types of resource (if a resource is referenced).">target</span>
            <a name="SearchParameter.target"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Types of resource (if a resource reference)
            <br/>
            <a title="One of the resource types defined as part of FHIR." href="valueset-resource-types.html">ResourceType</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.comparator : Comparators supported for the search parameter.">comparator</span>
            <a name="SearchParameter.comparator"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">eq | ne | gt | lt | ge | le | sa | eb | ap
            <br/>
            <a title="What Search Comparator Codes are supported in search" href="valueset-search-comparator.html">SearchComparator</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.modifier : A modifier supported for the search parameter.">modifier</span>
            <a name="SearchParameter.modifier"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#code">code</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">missing | exact | contains | not | text | in | not-in | below | above | type
            <br/>
            <a title="A supported modifier for a search parameter." href="valueset-search-modifier-code.html">SearchModifierCode</a>(
            <a title="To be conformant, the concept in this element SHALL be from the specified value set" href="terminologies.html#required">Required</a>)
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.chain : Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from SearchParameter.code for a parameter on the target resource type.">chain</span>
            <a name="SearchParameter.chain"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Chained names supported
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAI0lEQVR42u3QIQEAAAACIL/6/4MvTAQOkLYBAAB4kAAAANwMad9AqkRjgNAAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUOL+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,R0lGODlhEAAQAMQfAOvGUf7ztuvPMf/78/fkl/Pbg+u8Rvjqteu2Pf3zxPz36Pz0z+vTmPzurPvuw/npofbjquvNefHVduuyN+uuMu3Oafbgjfnqvf/3zv/3xevPi+vRjP/20/bmsP///////yH5BAEAAB8ALAAAAAAQABAAAAV24CeOZGmepqeqqOgxjBZFa+19r4ftWQUAgqDgltthMshMIJAZ4jYDHsBARSAmFOJvq+g6HIdEFgcYmBWNxoNAsDjGHgBnmV5bCoUDHLBIq9sFEhIdcAYJdYASFRUQhQkLCwkOFwcdEBAXhVabE52ecDahKy0oIQA7" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Element"/>
            <span title="SearchParameter.component : Used to define the parts of a composite search parameter.">component</span>
            <a name="SearchParameter.component"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">0..*</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="backboneelement.html">BackboneElement</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">For Composite resources to define the parts
            <br/>
          </td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR42u3QwQkAMAwDsezq/WdIO4XJQwa9DTdJpulv258AAMANIgAAADUPYAVAgAJ//usAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIZgEiYEgAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAIElEQVQ4y2P8//8/AyWAiYFCMGrAqAGjBowaMGoAAgAALL0DKYQ0DPIAAAAASUVORK5CYII=" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAadEVYdFNvZnR3YXJlAFBhaW50Lk5FVCB2My41LjEwMPRyoQAAAFxJREFUOE/NjEEOACEIA/0o/38GGw+agoXYeNnDJDCUDnd/gkoFKhWozJiZI3gLwY6rAgxhsPKTPUzycTl8lAryMyMsVQG6TFi6cHULyz8KOjC7OIQKlQpU3uPjAwhX2CCcGsgOAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Reference to another Resource"/>
            <span title="SearchParameter.component.definition : The definition of the search parameter that describes this part.">definition</span>
            <a name="SearchParameter.component.definition"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="references.html">Reference</a>(
            <a href="searchparameter.html">SearchParameter</a>)</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Defines how the part works</td>
        </tr>
        <tr style="border: 0px #F0F0F0 solid padding:0px vertical-align: top background-color: white">
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px white-space: nowrap background-image: url(data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAI0lEQVR42u3QIQEAAAACIL/6/4MvTAQOkLYBAAB4kAAAANwMad9AqkRjgNAAAAAASUVORK5CYII=)" class="hierarchy">
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIZgEiYEgAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAIElEQVQ4y2P8//8/AyWAiYFCMGrAqAGjBowaMGoAAgAALL0DKYQ0DPIAAAAASUVORK5CYII=" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUOL+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: inherit"/>
            <img src="data: image/pngbase64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" class="hierarchy" alt="." style="background-color: white background-color: inherit" title="Primitive Data Type"/>
            <span title="SearchParameter.component.expression : A sub-expression that defines how to extract values for this component from the output of the main SearchParameter.expression.">expression</span>
            <a name="SearchParameter.component.expression"> </a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy"/>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">
            <a href="datatypes.html#string">string</a>
          </td>
          <td style="vertical-align: top text-align : left background-color: white border: 0px #F0F0F0 solid padding:0px 4px 0px 4px" class="hierarchy">Subexpression relative to main expression</td>
        </tr>
        <tr>
          <td colspan="5" class="hierarchy">
            <br/>
            <a title="Legend for this format" href="formats.html#table">
              <img alt="doco" style="background-color: inherit"/>Documentation for this format</a>
          </td>
        </tr>
      </table>
    </div>
  </text>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="3"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/>
  </extension>
  <url value="http://hl7.org/fhir/StructureDefinition/SearchParameter"/>
  <name value="SearchParameter"/>
  <status value="draft"/>
  <date value="2017-04-27T17:09:41+10:00"/>
  <publisher value="Health Level Seven International (FHIR Infrastructure)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
  </contact>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/fiwg/index.cfm"/>
    </telecom>
  </contact>
  <description value="A search parameter that defines a named search item that can be used to search/filter on a resource."/>
  <fhirVersion value="3.0.1"/>
  <mapping>
    <identity value="v2"/>
    <uri value="http://hl7.org/v2"/>
    <name value="HL7 v2 Mapping"/>
  </mapping>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <mapping>
    <identity value="w5"/>
    <uri value="http://hl7.org/fhir/w5"/>
    <name value="W5 Mapping"/>
  </mapping>
  <mapping>
    <identity value="objimpl"/>
    <uri value="http://hl7.org/fhir/object-implementation"/>
    <name value="Object Implementation Information"/>
  </mapping>
  <kind value="resource"/>
  <abstract value="false"/>
  <type value="SearchParameter"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DomainResource">
    <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-codegen-super">
      <valueString value="MetadataResource"/>
    </extension>
  </baseDefinition>
  <derivation value="specialization"/>
  <snapshot>
    <element id="SearchParameter">
      <path value="SearchParameter"/>
      <short value="Search Parameter for a resource"/>
      <definition value="A search parameter that defines a named search item that can be used to search/filter on a resource."/>
      <comment value="In FHIR, search is not performed directly on a resource (by XML or JSON path), but on a named parameter that maps into the resource content."/>
      <min value="1"/>
      <max value="1"/>
      <constraint>
        <key value="dom-2"/>
        <severity value="error"/>
        <human value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>
        <expression value="contained.contained.empty()"/>
        <xpath value="not(parent::f:contained and f:contained)"/>
        <source value="DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-1"/>
        <severity value="error"/>
        <human value="If the resource is contained in another resource, it SHALL NOT contain any narrative"/>
        <expression value="contained.text.empty()"/>
        <xpath value="not(parent::f:contained and f:text)"/>
        <source value="DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-4"/>
        <severity value="error"/>
        <human value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated"/>
        <expression value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>
        <xpath value="not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))"/>
        <source value="DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-3"/>
        <severity value="error"/>
        <human value="If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource"/>
        <expression value="contained.where(('#'+id in %resource.descendants().reference).not()).empty()"/>
        <xpath value="not(exists(for $id in f:contained/*/@id return $id[not(ancestor::f:contained/parent::*/descendant::f:reference/@value=concat('#', $id))]))"/>
        <source value="DomainResource"/>
      </constraint>
      <constraint>
        <key value="spd-1"/>
        <severity value="error"/>
        <human value="If an xpath is present, there SHALL be an xpathUsage"/>
        <expression value="xpath.empty() or xpathUsage.exists()"/>
        <xpath value="not(exists(f:xpath)) or exists(f:xpathUsage)"/>
      </constraint>
      <constraint>
        <key value="spd-2"/>
        <severity value="error"/>
        <human value="Search parameters can only have chain names when the search parameter type is 'reference'"/>
        <expression value="chain.empty() or type = 'reference'"/>
        <xpath value="not(exists(f:chain)) or (f:type/@value = 'reference')"/>
      </constraint>
      <mapping>
        <identity value="rim"/>
        <map value="Entity. Role, or Act"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="conformance.behavior"/>
      </mapping>
    </element>
    <element id="SearchParameter.id">
      <path value="SearchParameter.id"/>
      <short value="Logical id of this artifact"/>
      <definition value="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes."/>
      <comment value="The only time that a resource does not have an id is when it is being submitted to the server using a create operation."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.meta">
      <path value="SearchParameter.meta"/>
      <short value="Metadata about the resource"/>
      <definition value="The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content may not always be associated with version changes to the resource."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.meta"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.implicitRules">
      <path value="SearchParameter.implicitRules"/>
      <short value="A set of rules under which this content was created"/>
      <definition value="A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content."/>
      <comment value="Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. &#xA;&#xA;This element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.implicitRules"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.language">
      <path value="SearchParameter.language"/>
      <short value="Language of the resource content"/>
      <definition value="The base language in which the resource is written."/>
      <comment value="Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.language"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet">
          <valueReference>
            <reference value="http://hl7.org/fhir/ValueSet/all-languages"/>
          </valueReference>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Language"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="extensible"/>
        <description value="A human language."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/languages"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.text">
      <path value="SearchParameter.text"/>
      <short value="Text summary of the resource, for human interpretation"/>
      <definition value="A human-readable narrative that contains a summary of the resource, and may be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it &quot;clinically safe&quot; for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety."/>
      <comment value="Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a &quot;text blob&quot; or where text is additionally entered raw or narrated and encoded in formation is added later."/>
      <alias value="narrative"/>
      <alias value="html"/>
      <alias value="xhtml"/>
      <alias value="display"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="DomainResource.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Narrative"/>
      </type>
      <condition value="dom-1"/>
      <mapping>
        <identity value="rim"/>
        <map value="Act.text?"/>
      </mapping>
    </element>
    <element id="SearchParameter.contained">
      <path value="SearchParameter.contained"/>
      <short value="Contained, inline Resources"/>
      <definition value="These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope."/>
      <comment value="This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again."/>
      <alias value="inline resources"/>
      <alias value="anonymous resources"/>
      <alias value="contained resources"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.contained"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Resource"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="SearchParameter.extension">
      <path value="SearchParameter.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition of the resource. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="SearchParameter.modifierExtension">
      <path value="SearchParameter.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="May be used to represent additional information that is not part of the basic definition of the resource, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions."/>
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <isModifier value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="SearchParameter.url">
      <path value="SearchParameter.url"/>
      <short value="Logical URI to reference this search parameter (globally unique)"/>
      <definition value="An absolute URI that is used to identify this search parameter when it is referenced in a specification, model, design or an instance. This SHALL be a URL, SHOULD be globally unique, and SHOULD be an address at which this search parameter is (or will be) published. The URL SHOULD include the major version of the search parameter. For more information see [Technical and Business Versions](resource.html#versions)."/>
      <comment value="Can be a urn:uuid: or a urn:oid:, but real http: addresses are preferred. Multiple instances may share the same url if they have a distinct version."/>
      <requirements value="Allows the search parameter to be referenced by a single globally unique identifier. To allow referencing and reusing search parameter definitions under other names on operational systems (in case of name clash)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="id"/>
      </mapping>
    </element>
    <element id="SearchParameter.version">
      <path value="SearchParameter.version"/>
      <short value="Business version of the search parameter"/>
      <definition value="The identifier that is used to identify this version of the search parameter when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the search parameter author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence."/>
      <comment value="There may be different search parameter instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a refrence to a particular business version of the search parameter with the format [url]|[version]."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="id.version"/>
      </mapping>
    </element>
    <element id="SearchParameter.name">
      <path value="SearchParameter.name"/>
      <short value="Name for this search parameter (computer friendly)"/>
      <definition value="A natural language name identifying the search parameter. This name should be usable as an identifier for the module by machine processing applications such as code generation."/>
      <comment value="The name is not expected to be globally unique. The name should be a simple alpha-numeric type name to ensure that it is computable friendly."/>
      <requirements value="Support human navigation and code generation."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.status">
      <path value="SearchParameter.status"/>
      <short value="draft | active | retired | unknown"/>
      <definition value="The status of this search parameter. Enables tracking the life-cycle of the content."/>
      <comment value="Allows filtering of search parameters that are appropriate for use vs. not. &#xA;This is labeled as &quot;Is Modifier&quot; because applications should not use a retired search parameter without due consideration."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="PublicationStatus"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="The lifecycle status of a Value Set or Concept Map."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/publication-status"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="w5"/>
        <map value="status"/>
      </mapping>
    </element>
    <element id="SearchParameter.experimental">
      <path value="SearchParameter.experimental"/>
      <short value="For testing purposes, not real usage"/>
      <definition value="A boolean value to indicate that this search parameter is authored for testing purposes (or education/evaluation/marketing), and is not intended to be used for genuine usage."/>
      <comment value="Allows filtering of search parameter that are appropriate for use vs. not. This is labeled as &quot;Is Modifier&quot; because applications should not use an experimental search parameter in production."/>
      <requirements value="Enables experimental content to be developed following the same lifecycle that would be used for a production-level search parameter."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="class"/>
      </mapping>
    </element>
    <element id="SearchParameter.date">
      <path value="SearchParameter.date"/>
      <short value="Date this was last changed"/>
      <definition value="The date (and optionally time) when the search parameter was published. The date must change if and when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the search parameter changes."/>
      <comment value="Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the search parameter. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource."/>
      <alias value="Revision Date"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="dateTime"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="when.recorded"/>
      </mapping>
    </element>
    <element id="SearchParameter.publisher">
      <path value="SearchParameter.publisher"/>
      <short value="Name of the publisher (organization or individual)"/>
      <definition value="The name of the individual or organization that published the search parameter."/>
      <comment value="Usually an organization, but may be an individual. The publisher (or steward) of the search parameter is the organization or individual primarily responsible for the maintenance and upkeep of the search parameter. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the search parameter. This item SHOULD be populated unless the information is available from context."/>
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the search parameter. May also allow for contact."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="who.witness"/>
      </mapping>
    </element>
    <element id="SearchParameter.contact">
      <path value="SearchParameter.contact"/>
      <short value="Contact details for the publisher"/>
      <definition value="Contact details to assist a user in finding and communicating with the publisher."/>
      <comment value="May be a web site, an email address, a telephone number, etc."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="ContactDetail"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.useContext">
      <path value="SearchParameter.useContext"/>
      <short value="Context the content is intended to support"/>
      <definition value="The content was developed with a focus and intent of supporting the contexts that are listed. These terms may be used to assist with indexing and searching for appropriate search parameter instances."/>
      <comment value="When multiple useContexts are specified, there is no expectation whether all or any of the contexts apply."/>
      <requirements value="Assist in searching for appropriate content."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="UsageContext"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.jurisdiction">
      <path value="SearchParameter.jurisdiction"/>
      <short value="Intended jurisdiction for search parameter (if applicable)"/>
      <definition value="A legal or geographic region in which the search parameter is intended to be used."/>
      <comment value="It may be possible for the search parameter to be used in jurisdictions other than those for which it was originally designed or intended."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Jurisdiction"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="extensible"/>
        <description value="Countries and regions within which this artifact is targeted for use"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/jurisdiction"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.purpose">
      <path value="SearchParameter.purpose"/>
      <short value="Why this search parameter is defined"/>
      <definition value="Explaination of why this search parameter is needed and why it has been designed as it has."/>
      <comment value="This element does not describe the usage of the search parameter Instead it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this search parameter."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="why"/>
      </mapping>
    </element>
    <element id="SearchParameter.code">
      <path value="SearchParameter.code"/>
      <short value="Code used in URL"/>
      <definition value="The code used in the URL or the parameter name in a parameters resource for this search parameter."/>
      <comment value="For maximum compatibility, use only lowercase ASCII characters."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.base">
      <path value="SearchParameter.base"/>
      <short value="The resource type(s) this search parameter applies to"/>
      <definition value="The base resource type(s) that this search parameter can be used against."/>
      <comment value="A search parameter must always have at least one type. When search parameters have more than one resource, they can be used against any of the listed resource types, or in a cross-type search (see [Cross Resource Search](http.html#xres-search))."/>
      <min value="1"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ResourceType"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="One of the resource types defined as part of FHIR."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-types"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.type">
      <path value="SearchParameter.type"/>
      <short value="number | date | string | token | reference | composite | quantity | uri"/>
      <definition value="The type of value a search parameter refers to, and how the content is interpreted."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SearchParamType"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="Data types allowed to be used for search parameters."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-param-type"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.derivedFrom">
      <path value="SearchParameter.derivedFrom"/>
      <short value="Original Definition for the search parameter"/>
      <definition value="Where this search parameter is originally defined. If a derivedFrom is provided, then the details in the search parameter must be consistent with the definition from which it is defined. I.e. the parameter should have the same meaning, and (usually) the functionality should be a proper subset of the underlying search parameter."/>
      <comment value="The intent of this is that a server can designate that it provides support for a search parameter defined in the specification itself (e.g. [`value-quantity`](http://hl7.org/fhir/SearchParameter/Observation-value-quantity), but detail how it is supported by the server."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
    </element>
    <element id="SearchParameter.description">
      <path value="SearchParameter.description"/>
      <short value="Natural language description of the search parameter"/>
      <definition value="A free text natural language description of the search parameter from a consumer's perspective. and how it used."/>
      <comment value="This description can be used to capture details such as why the search parameter was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the search parameter as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the profile is presumed to be the predominant language in the place the profile was created)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.expression">
      <path value="SearchParameter.expression"/>
      <short value="FHIRPath expression that extracts the values"/>
      <definition value="A FHIRPath expression that returns a set of elements for the search parameter."/>
      <comment value="Note that the elements returned by the expression are sometimes complex elements where logic is required to determine quite how to handle them e.g. CodeableConcepts may contain text and/or multiple codings, where the codings themselves contain a code and a system. For composite search parameters, the outcome of the expression must a collection of base elements from which the composites are derived."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="spd-1"/>
    </element>
    <element id="SearchParameter.xpath">
      <path value="SearchParameter.xpath"/>
      <short value="XPath that extracts the values"/>
      <definition value="An XPath expression that returns a set of elements for the search parameter."/>
      <comment value="Note that the elements returned by the XPath are sometimes complex elements where logic is required to determine quite how to handle them e.g. CodeableConcepts may contain text and/or multiple codings, where the codings themselves contain a code and a system."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="spd-1"/>
    </element>
    <element id="SearchParameter.xpathUsage">
      <path value="SearchParameter.xpathUsage"/>
      <short value="normal | phonetic | nearby | distance | other"/>
      <definition value="How the search parameter relates to the set of elements returned by evaluating the xpath query."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <condition value="spd-1"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="XPathUsageType"/>
        </extension>
        <strength value="required"/>
        <description value="How a search parameter relates to the set of elements returned by evaluating its xpath query."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-xpath-usage"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.target">
      <path value="SearchParameter.target"/>
      <short value="Types of resource (if a resource reference)"/>
      <definition value="Types of resource (if a resource is referenced)."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ResourceType"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="One of the resource types defined as part of FHIR."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-types"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.comparator">
      <path value="SearchParameter.comparator"/>
      <short value="eq | ne | gt | lt | ge | le | sa | eb | ap"/>
      <definition value="Comparators supported for the search parameter."/>
      <comment value="If no comparators are listed, clients should not expect servers to support any comparators."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SearchComparator"/>
        </extension>
        <strength value="required"/>
        <description value="What Search Comparator Codes are supported in search"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-comparator"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.modifier">
      <path value="SearchParameter.modifier"/>
      <short value="missing | exact | contains | not | text | in | not-in | below | above | type"/>
      <definition value="A modifier supported for the search parameter."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SearchModifierCode"/>
        </extension>
        <strength value="required"/>
        <description value="A supported modifier for a search parameter."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-modifier-code"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.chain">
      <path value="SearchParameter.chain"/>
      <short value="Chained names supported"/>
      <definition value="Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from SearchParameter.code for a parameter on the target resource type."/>
      <comment value="Systems are not required to list all the chain names they support, but if they don't list them, clients may not know to use them."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SearchParameter.component">
      <path value="SearchParameter.component"/>
      <short value="For Composite resources to define the parts"/>
      <definition value="Used to define the parts of a composite search parameter."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() | (children().count() > id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="Element"/>
      </constraint>
    </element>
    <element id="SearchParameter.component.id">
      <path value="SearchParameter.component.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="SearchParameter.component.extension">
      <path value="SearchParameter.component.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="SearchParameter.component.modifierExtension">
      <path value="SearchParameter.component.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions."/>
      <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="SearchParameter.component.definition">
      <path value="SearchParameter.component.definition"/>
      <short value="Defines how the part works"/>
      <definition value="The definition of the search parameter that describes this part."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/SearchParameter"/>
      </type>
    </element>
    <element id="SearchParameter.component.expression">
      <path value="SearchParameter.component.expression"/>
      <short value="Subexpression relative to main expression"/>
      <definition value="A sub-expression that defines how to extract values for this component from the output of the main SearchParameter.expression."/>
      <comment value="This expression overrides the expression in the definition, and extracts the index values from the outcome of the composite expression."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
  </snapshot>
  <differential>
    <element id="SearchParameter">
      <path value="SearchParameter"/>
      <short value="Search Parameter for a resource"/>
      <definition value="A search parameter that defines a named search item that can be used to search/filter on a resource."/>
      <comment value="In FHIR, search is not performed directly on a resource (by XML or JSON path), but on a named parameter that maps into the resource content."/>
      <min value="1"/>
      <max value="1"/>
      <constraint>
        <key value="spd-1"/>
        <severity value="error"/>
        <human value="If an xpath is present, there SHALL be an xpathUsage"/>
        <expression value="xpath.empty() or xpathUsage.exists()"/>
        <xpath value="not(exists(f:xpath)) or exists(f:xpathUsage)"/>
      </constraint>
      <constraint>
        <key value="spd-2"/>
        <severity value="error"/>
        <human value="Search parameters can only have chain names when the search parameter type is 'reference'"/>
        <expression value="chain.empty() or type = 'reference'"/>
        <xpath value="not(exists(f:chain)) or (f:type/@value = 'reference')"/>
      </constraint>
      <mapping>
        <identity value="v2"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="conformance.behavior"/>
      </mapping>
    </element>
    <element id="SearchParameter.url">
      <path value="SearchParameter.url"/>
      <short value="Logical URI to reference this search parameter (globally unique)"/>
      <definition value="An absolute URI that is used to identify this search parameter when it is referenced in a specification, model, design or an instance. This SHALL be a URL, SHOULD be globally unique, and SHOULD be an address at which this search parameter is (or will be) published. The URL SHOULD include the major version of the search parameter. For more information see [Technical and Business Versions](resource.html#versions)."/>
      <comment value="Can be a urn:uuid: or a urn:oid:, but real http: addresses are preferred. Multiple instances may share the same url if they have a distinct version."/>
      <requirements value="Allows the search parameter to be referenced by a single globally unique identifier. To allow referencing and reusing search parameter definitions under other names on operational systems (in case of name clash)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="id"/>
      </mapping>
    </element>
    <element id="SearchParameter.version">
      <path value="SearchParameter.version"/>
      <short value="Business version of the search parameter"/>
      <definition value="The identifier that is used to identify this version of the search parameter when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the search parameter author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence."/>
      <comment value="There may be different search parameter instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a refrence to a particular business version of the search parameter with the format [url]|[version]."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="id.version"/>
      </mapping>
    </element>
    <element id="SearchParameter.name">
      <path value="SearchParameter.name"/>
      <short value="Name for this search parameter (computer friendly)"/>
      <definition value="A natural language name identifying the search parameter. This name should be usable as an identifier for the module by machine processing applications such as code generation."/>
      <comment value="The name is not expected to be globally unique. The name should be a simple alpha-numeric type name to ensure that it is computable friendly."/>
      <requirements value="Support human navigation and code generation."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.status">
      <path value="SearchParameter.status"/>
      <short value="draft | active | retired | unknown"/>
      <definition value="The status of this search parameter. Enables tracking the life-cycle of the content."/>
      <comment value="Allows filtering of search parameters that are appropriate for use vs. not. &#xA;This is labeled as &quot;Is Modifier&quot; because applications should not use a retired search parameter without due consideration."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="PublicationStatus"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="The lifecycle status of a Value Set or Concept Map."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/publication-status"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="w5"/>
        <map value="status"/>
      </mapping>
    </element>
    <element id="SearchParameter.experimental">
      <path value="SearchParameter.experimental"/>
      <short value="For testing purposes, not real usage"/>
      <definition value="A boolean value to indicate that this search parameter is authored for testing purposes (or education/evaluation/marketing), and is not intended to be used for genuine usage."/>
      <comment value="Allows filtering of search parameter that are appropriate for use vs. not. This is labeled as &quot;Is Modifier&quot; because applications should not use an experimental search parameter in production."/>
      <requirements value="Enables experimental content to be developed following the same lifecycle that would be used for a production-level search parameter."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="class"/>
      </mapping>
    </element>
    <element id="SearchParameter.date">
      <path value="SearchParameter.date"/>
      <short value="Date this was last changed"/>
      <definition value="The date (and optionally time) when the search parameter was published. The date must change if and when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the search parameter changes."/>
      <comment value="Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the search parameter. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource."/>
      <alias value="Revision Date"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="dateTime"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="when.recorded"/>
      </mapping>
    </element>
    <element id="SearchParameter.publisher">
      <path value="SearchParameter.publisher"/>
      <short value="Name of the publisher (organization or individual)"/>
      <definition value="The name of the individual or organization that published the search parameter."/>
      <comment value="Usually an organization, but may be an individual. The publisher (or steward) of the search parameter is the organization or individual primarily responsible for the maintenance and upkeep of the search parameter. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the search parameter. This item SHOULD be populated unless the information is available from context."/>
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the search parameter. May also allow for contact."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="who.witness"/>
      </mapping>
    </element>
    <element id="SearchParameter.contact">
      <path value="SearchParameter.contact"/>
      <short value="Contact details for the publisher"/>
      <definition value="Contact details to assist a user in finding and communicating with the publisher."/>
      <comment value="May be a web site, an email address, a telephone number, etc."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="ContactDetail"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.useContext">
      <path value="SearchParameter.useContext"/>
      <short value="Context the content is intended to support"/>
      <definition value="The content was developed with a focus and intent of supporting the contexts that are listed. These terms may be used to assist with indexing and searching for appropriate search parameter instances."/>
      <comment value="When multiple useContexts are specified, there is no expectation whether all or any of the contexts apply."/>
      <requirements value="Assist in searching for appropriate content."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="UsageContext"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.jurisdiction">
      <path value="SearchParameter.jurisdiction"/>
      <short value="Intended jurisdiction for search parameter (if applicable)"/>
      <definition value="A legal or geographic region in which the search parameter is intended to be used."/>
      <comment value="It may be possible for the search parameter to be used in jurisdictions other than those for which it was originally designed or intended."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Jurisdiction"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="extensible"/>
        <description value="Countries and regions within which this artifact is targeted for use"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/jurisdiction"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.purpose">
      <path value="SearchParameter.purpose"/>
      <short value="Why this search parameter is defined"/>
      <definition value="Explaination of why this search parameter is needed and why it has been designed as it has."/>
      <comment value="This element does not describe the usage of the search parameter Instead it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this search parameter."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="why"/>
      </mapping>
    </element>
    <element id="SearchParameter.code">
      <path value="SearchParameter.code"/>
      <short value="Code used in URL"/>
      <definition value="The code used in the URL or the parameter name in a parameters resource for this search parameter."/>
      <comment value="For maximum compatibility, use only lowercase ASCII characters."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.base">
      <path value="SearchParameter.base"/>
      <short value="The resource type(s) this search parameter applies to"/>
      <definition value="The base resource type(s) that this search parameter can be used against."/>
      <comment value="A search parameter must always have at least one type. When search parameters have more than one resource, they can be used against any of the listed resource types, or in a cross-type search (see [Cross Resource Search](http.html#xres-search))."/>
      <min value="1"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ResourceType"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="One of the resource types defined as part of FHIR."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-types"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.type">
      <path value="SearchParameter.type"/>
      <short value="number | date | string | token | reference | composite | quantity | uri"/>
      <definition value="The type of value a search parameter refers to, and how the content is interpreted."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SearchParamType"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="Data types allowed to be used for search parameters."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-param-type"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.derivedFrom">
      <path value="SearchParameter.derivedFrom"/>
      <short value="Original Definition for the search parameter"/>
      <definition value="Where this search parameter is originally defined. If a derivedFrom is provided, then the details in the search parameter must be consistent with the definition from which it is defined. I.e. the parameter should have the same meaning, and (usually) the functionality should be a proper subset of the underlying search parameter."/>
      <comment value="The intent of this is that a server can designate that it provides support for a search parameter defined in the specification itself (e.g. [`value-quantity`](http://hl7.org/fhir/SearchParameter/Observation-value-quantity), but detail how it is supported by the server."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
    </element>
    <element id="SearchParameter.description">
      <path value="SearchParameter.description"/>
      <short value="Natural language description of the search parameter"/>
      <definition value="A free text natural language description of the search parameter from a consumer's perspective. and how it used."/>
      <comment value="This description can be used to capture details such as why the search parameter was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the search parameter as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the profile is presumed to be the predominant language in the place the profile was created)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element id="SearchParameter.expression">
      <path value="SearchParameter.expression"/>
      <short value="FHIRPath expression that extracts the values"/>
      <definition value="A FHIRPath expression that returns a set of elements for the search parameter."/>
      <comment value="Note that the elements returned by the expression are sometimes complex elements where logic is required to determine quite how to handle them e.g. CodeableConcepts may contain text and/or multiple codings, where the codings themselves contain a code and a system. For composite search parameters, the outcome of the expression must a collection of base elements from which the composites are derived."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="spd-1"/>
    </element>
    <element id="SearchParameter.xpath">
      <path value="SearchParameter.xpath"/>
      <short value="XPath that extracts the values"/>
      <definition value="An XPath expression that returns a set of elements for the search parameter."/>
      <comment value="Note that the elements returned by the XPath are sometimes complex elements where logic is required to determine quite how to handle them e.g. CodeableConcepts may contain text and/or multiple codings, where the codings themselves contain a code and a system."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="spd-1"/>
    </element>
    <element id="SearchParameter.xpathUsage">
      <path value="SearchParameter.xpathUsage"/>
      <short value="normal | phonetic | nearby | distance | other"/>
      <definition value="How the search parameter relates to the set of elements returned by evaluating the xpath query."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <condition value="spd-1"/>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="XPathUsageType"/>
        </extension>
        <strength value="required"/>
        <description value="How a search parameter relates to the set of elements returned by evaluating its xpath query."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-xpath-usage"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.target">
      <path value="SearchParameter.target"/>
      <short value="Types of resource (if a resource reference)"/>
      <definition value="Types of resource (if a resource is referenced)."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ResourceType"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="One of the resource types defined as part of FHIR."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-types"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.comparator">
      <path value="SearchParameter.comparator"/>
      <short value="eq | ne | gt | lt | ge | le | sa | eb | ap"/>
      <definition value="Comparators supported for the search parameter."/>
      <comment value="If no comparators are listed, clients should not expect servers to support any comparators."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SearchComparator"/>
        </extension>
        <strength value="required"/>
        <description value="What Search Comparator Codes are supported in search"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-comparator"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.modifier">
      <path value="SearchParameter.modifier"/>
      <short value="missing | exact | contains | not | text | in | not-in | below | above | type"/>
      <definition value="A modifier supported for the search parameter."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SearchModifierCode"/>
        </extension>
        <strength value="required"/>
        <description value="A supported modifier for a search parameter."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/search-modifier-code"/>
        </valueSetReference>
      </binding>
    </element>
    <element id="SearchParameter.chain">
      <path value="SearchParameter.chain"/>
      <short value="Chained names supported"/>
      <definition value="Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from SearchParameter.code for a parameter on the target resource type."/>
      <comment value="Systems are not required to list all the chain names they support, but if they don't list them, clients may not know to use them."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SearchParameter.component">
      <path value="SearchParameter.component"/>
      <short value="For Composite resources to define the parts"/>
      <definition value="Used to define the parts of a composite search parameter."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element id="SearchParameter.component.definition">
      <path value="SearchParameter.component.definition"/>
      <short value="Defines how the part works"/>
      <definition value="The definition of the search parameter that describes this part."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/SearchParameter"/>
      </type>
    </element>
    <element id="SearchParameter.component.expression">
      <path value="SearchParameter.component.expression"/>
      <short value="Subexpression relative to main expression"/>
      <definition value="A sub-expression that defines how to extract values for this component from the output of the main SearchParameter.expression."/>
      <comment value="This expression overrides the expression in the definition, and extracts the index values from the outcome of the composite expression."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
  </differential>
</StructureDefinition>