SIMPLIFIER.NET - FHIRPath Playground

FHIRPath

If you Log in or sign up, you can edit this script yourself.

name

<StructureDefinition xmlns="http://hl7.org/fhir">
 <id value="external-reference" />
 <meta>
 <lastUpdated value="2019-12-20T21:24:39.980+00:00" />
 </meta>
 <text>
 <status value="generated" />
 <div xmlns="http://www.w3.org/1999/xhtml">
 <table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;">
 <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 href="http://hl7.org/fhir/R4/formats.html#table" title="The logical name of the element">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 href="http://hl7.org/fhir/R4/formats.html#table" title="Information about the use of the element">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 href="http://hl7.org/fhir/R4/formats.html#table" title="Minimum and Maximum # of times the the element can appear in the instance">Card.</a>
 </th>
 <th style="width: 100px" class="hierarchy">
 <a href="http://hl7.org/fhir/R4/formats.html#table" title="Reference to the type of the element">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 href="http://hl7.org/fhir/R4/formats.html#table" title="Additional information about the element">Description &amp; Constraints</a>
 
 <a href="http://hl7.org/fhir/R4/formats.html#table" title="Legend for this format">
 <img src="http://hl7.org/fhir/R4/help16.png" alt="doco" style="background-color: inherit" />
 </a>
 
 </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(tbl_bck1.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension" title="An external reference with an optional description.">Extension</a>
 <a name="Extension"></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="http://hl7.org/fhir/R4/extensibility.html#Extension">Extension</a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">External Reference </td>
 </tr>
 <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7;">
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck12.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_extension_simple.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Simple Extension" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension" title="null">extension</a>
 <a name="Extension.extension"></a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 0
 ..
 *
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 <a style="opacity: 0.4" href="http://hl7.org/fhir/R4/extensibility.html#Extension">Extension</a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 Slice: Unordered, Open by value: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(tbl_bck15.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension:id" title="Slice id: null">extension:id</a>
 <a name="Extension.extension"></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 style="opacity: 0.4" href="http://hl7.org/fhir/R4/extensibility.html#Extension">Extension</a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">An identifier such as ISBN:978-3-16-148410-0 or PMID:123456.</td>
 </tr>
 <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7;">
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck150.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_slice.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_extension_simple.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Simple Extension" class="hierarchy" />
 extension
 <a name="Extension.extension.extension"></a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 
 0
 ..
 0
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 </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(tbl_bck150.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_slice.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension:id.url" title="null">url</a>
 <a name="Extension.extension.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" />
 <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 style="opacity: 0.4" href="http://hl7.org/fhir/R4/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">
 "id"
 </td>
 </tr>
 <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7;">
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck140.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_end_slice.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension:id.valueUrl" title="null">valueUrl</a>
 <a name="Extension.extension.valueUrl"></a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 <a href="http://hl7.org/fhir/R4/datatypes.html#url">url</a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 </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(tbl_bck15.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension:description" title="Slice description: null">extension:description</a>
 <a name="Extension.extension"></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 style="opacity: 0.4" href="http://hl7.org/fhir/R4/extensibility.html#Extension">Extension</a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">An optional description of the external reference.</td>
 </tr>
 <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7;">
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck150.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_slice.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_extension_simple.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Simple Extension" class="hierarchy" />
 extension
 <a name="Extension.extension.extension"></a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 
 0
 ..
 0
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 </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(tbl_bck150.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_slice.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension:description.url" title="null">url</a>
 <a name="Extension.extension.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" />
 <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 style="opacity: 0.4" href="http://hl7.org/fhir/R4/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">
 "description"
 </td>
 </tr>
 <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7;">
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck140.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_end_slice.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.extension:description.valueString" title="null">valueString</a>
 <a name="Extension.extension.valueString"></a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 0
 ..
 1
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 <a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 </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(tbl_bck10.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy" />
 <a href="StructureDefinition-external-reference-definitions.html#Extension.url" title="null">url</a>
 <a name="Extension.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" />
 <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 style="opacity: 0.4" href="http://hl7.org/fhir/R4/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">
 "http://ga4gh.org/fhir/phenopackets/StructureDefinition/external-reference"
 </td>
 </tr>
 <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7;">
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)" class="hierarchy">
 <img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy" />
 <img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy" />
 value[x]
 <a name="Extension.value_x_"></a>
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">
 
 0
 ..
 0
 </td>
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 <td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy" />
 </tr>
 <tr>
 <td colspan="5" class="hierarchy">
 
 <a href="http://hl7.org/fhir/R4/formats.html#table" title="Legend for this format">
 <img src="http://hl7.org/fhir/R4/help16.png" alt="doco" style="background-color: inherit" /> Documentation for this format</a>
 </td>
 </tr>
 </table>
 </div>
 </text>
 <url value="http://ga4gh.org/fhir/phenopackets/StructureDefinition/external-reference" />
 <version value="0.1.0" />
 <name value="ExternalReference" />
 <title value="External Reference" />
 <status value="draft" />
 <date value="2019-12-20T18:15:04+00:00" />
 <publisher value="Global Alliance for Genomics and Health" />
 <contact>
 <telecom>
 <system value="other" />
 <value value="http://ga4gh.org" />
 <rank value="1" />
 </telecom>
 </contact>
 <description value="This element encodes the evidence type using, for example the Evidence &amp; Conclusion Ontology (ECO)." />
 <fhirVersion value="4.0.1" />
 <mapping>
 <identity value="rim" />
 <uri value="http://hl7.org/v3" />
 <name value="RIM Mapping" />
 </mapping>
 <kind value="complex-type" />
 <abstract value="false" />
 <context>
 <type value="element" />
 <expression value="Observation" />
 </context>
 <context>
 <type value="extension" />
 <expression value="http://ga4gh.org/fhir/phenopackets/StructureDefinition/evidence" />
 </context>
 <type value="Extension" />
 <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
 <derivation value="constraint" />
 <snapshot>
 <element id="Extension">
 <path value="Extension" />
 <short value="External Reference" />
 <definition value="An external reference with an optional description." />
 <min value="0" />
 <max value="*" />
 <base>
 <path value="Extension" />
 <min value="0" />
 <max value="*" />
 </base>
 <condition value="ele-1" />
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <constraint>
 <key value="ext-1" />
 <severity value="error" />
 <human value="Must have either extensions or value[x], not both" />
 <expression value="extension.exists() != value.exists()" />
 <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
 </constraint>
 <isModifier value="false" />
 </element>
 <element id="Extension.id">
 <path value="Extension.id" />
 <representation value="xmlAttr" />
 <short value="Unique id for inter-element referencing" />
 <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>
 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
 <valueUrl value="string" />
 </extension>
 <code value="http://hl7.org/fhirpath/System.String" />
 </type>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="n/a" />
 </mapping>
 </element>
 <element id="Extension.extension">
 <path value="Extension.extension" />
 <slicing>
 <discriminator>
 <type value="value" />
 <path value="url" />
 </discriminator>
 <description value="Extensions are always sliced by (at least) url" />
 <ordered value="false" />
 <rules value="open" />
 </slicing>
 <short value="Extension" />
 <definition value="An Extension" />
 <min value="0" />
 <max value="*" />
 <base>
 <path value="Element.extension" />
 <min value="0" />
 <max value="*" />
 </base>
 <type>
 <code value="Extension" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <constraint>
 <key value="ext-1" />
 <severity value="error" />
 <human value="Must have either extensions or value[x], not both" />
 <expression value="extension.exists() != value.exists()" />
 <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 </element>
 <element id="Extension.extension:id">
 <path value="Extension.extension" />
 <sliceName value="id" />
 <short value="An identifier such as ISBN:978-3-16-148410-0 or PMID:123456." />
 <definition value="An Extension" />
 <min value="1" />
 <max value="1" />
 <base>
 <path value="Element.extension" />
 <min value="0" />
 <max value="*" />
 </base>
 <type>
 <code value="Extension" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <constraint>
 <key value="ext-1" />
 <severity value="error" />
 <human value="Must have either extensions or value[x], not both" />
 <expression value="extension.exists() != value.exists()" />
 <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 </element>
 <element id="Extension.extension:id.id">
 <path value="Extension.extension.id" />
 <representation value="xmlAttr" />
 <short value="Unique id for inter-element referencing" />
 <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>
 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
 <valueUrl value="string" />
 </extension>
 <code value="http://hl7.org/fhirpath/System.String" />
 </type>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="n/a" />
 </mapping>
 </element>
 <element id="Extension.extension:id.extension">
 <path value="Extension.extension.extension" />
 <slicing>
 <discriminator>
 <type value="value" />
 <path value="url" />
 </discriminator>
 <description value="Extensions are always sliced by (at least) url" />
 <rules value="open" />
 </slicing>
 <short value="Extension" />
 <definition value="An Extension" />
 <min value="0" />
 <max value="0" />
 <base>
 <path value="Element.extension" />
 <min value="0" />
 <max value="*" />
 </base>
 <type>
 <code value="Extension" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <constraint>
 <key value="ext-1" />
 <severity value="error" />
 <human value="Must have either extensions or value[x], not both" />
 <expression value="extension.exists() != value.exists()" />
 <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 </element>
 <element id="Extension.extension:id.url">
 <path value="Extension.extension.url" />
 <representation value="xmlAttr" />
 <short value="identifies the meaning of the extension" />
 <definition value="Source of the definition for the extension code - a logical name or a URL." />
 <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." />
 <min value="1" />
 <max value="1" />
 <base>
 <path value="Extension.url" />
 <min value="1" />
 <max value="1" />
 </base>
 <type>
 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
 <valueUrl value="uri" />
 </extension>
 <code value="http://hl7.org/fhirpath/System.String" />
 </type>
 <fixedUri value="id" />
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.extension:id.value[x]">
 <path value="Extension.extension.value[x]" />
 <slicing>
 <discriminator>
 <type value="type" />
 <path value="$this" />
 </discriminator>
 <ordered value="false" />
 <rules value="closed" />
 </slicing>
 <short value="Value of extension" />
 <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." />
 <min value="1" />
 <max value="1" />
 <base>
 <path value="Extension.value[x]" />
 <min value="0" />
 <max value="1" />
 </base>
 <type>
 <code value="url" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.extension:id.value[x]:valueUrl">
 <path value="Extension.extension.value[x]" />
 <sliceName value="valueUrl" />
 <short value="Value of extension" />
 <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." />
 <min value="1" />
 <max value="1" />
 <base>
 <path value="Extension.value[x]" />
 <min value="0" />
 <max value="1" />
 </base>
 <type>
 <code value="url" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.extension:description">
 <path value="Extension.extension" />
 <sliceName value="description" />
 <short value="An optional description of the external reference." />
 <definition value="An Extension" />
 <min value="0" />
 <max value="1" />
 <base>
 <path value="Element.extension" />
 <min value="0" />
 <max value="*" />
 </base>
 <type>
 <code value="Extension" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <constraint>
 <key value="ext-1" />
 <severity value="error" />
 <human value="Must have either extensions or value[x], not both" />
 <expression value="extension.exists() != value.exists()" />
 <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 </element>
 <element id="Extension.extension:description.id">
 <path value="Extension.extension.id" />
 <representation value="xmlAttr" />
 <short value="Unique id for inter-element referencing" />
 <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>
 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
 <valueUrl value="string" />
 </extension>
 <code value="http://hl7.org/fhirpath/System.String" />
 </type>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="n/a" />
 </mapping>
 </element>
 <element id="Extension.extension:description.extension">
 <path value="Extension.extension.extension" />
 <slicing>
 <discriminator>
 <type value="value" />
 <path value="url" />
 </discriminator>
 <description value="Extensions are always sliced by (at least) url" />
 <rules value="open" />
 </slicing>
 <short value="Extension" />
 <definition value="An Extension" />
 <min value="0" />
 <max value="0" />
 <base>
 <path value="Element.extension" />
 <min value="0" />
 <max value="*" />
 </base>
 <type>
 <code value="Extension" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <constraint>
 <key value="ext-1" />
 <severity value="error" />
 <human value="Must have either extensions or value[x], not both" />
 <expression value="extension.exists() != value.exists()" />
 <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
 <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 </element>
 <element id="Extension.extension:description.url">
 <path value="Extension.extension.url" />
 <representation value="xmlAttr" />
 <short value="identifies the meaning of the extension" />
 <definition value="Source of the definition for the extension code - a logical name or a URL." />
 <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." />
 <min value="1" />
 <max value="1" />
 <base>
 <path value="Extension.url" />
 <min value="1" />
 <max value="1" />
 </base>
 <type>
 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
 <valueUrl value="uri" />
 </extension>
 <code value="http://hl7.org/fhirpath/System.String" />
 </type>
 <fixedUri value="description" />
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.extension:description.value[x]">
 <path value="Extension.extension.value[x]" />
 <slicing>
 <discriminator>
 <type value="type" />
 <path value="$this" />
 </discriminator>
 <ordered value="false" />
 <rules value="closed" />
 </slicing>
 <short value="Value of extension" />
 <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." />
 <min value="0" />
 <max value="1" />
 <base>
 <path value="Extension.value[x]" />
 <min value="0" />
 <max value="1" />
 </base>
 <type>
 <code value="string" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.extension:description.value[x]:valueString">
 <path value="Extension.extension.value[x]" />
 <sliceName value="valueString" />
 <short value="Value of extension" />
 <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." />
 <min value="0" />
 <max value="1" />
 <base>
 <path value="Extension.value[x]" />
 <min value="0" />
 <max value="1" />
 </base>
 <type>
 <code value="string" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.url">
 <path value="Extension.url" />
 <representation value="xmlAttr" />
 <short value="identifies the meaning of the extension" />
 <definition value="Source of the definition for the extension code - a logical name or a URL." />
 <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." />
 <min value="1" />
 <max value="1" />
 <base>
 <path value="Extension.url" />
 <min value="1" />
 <max value="1" />
 </base>
 <type>
 <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
 <valueUrl value="uri" />
 </extension>
 <code value="http://hl7.org/fhirpath/System.String" />
 </type>
 <fixedUri value="http://ga4gh.org/fhir/phenopackets/StructureDefinition/external-reference" />
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 <element id="Extension.value[x]">
 <path value="Extension.value[x]" />
 <short value="Value of extension" />
 <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." />
 <min value="0" />
 <max value="0" />
 <base>
 <path value="Extension.value[x]" />
 <min value="0" />
 <max value="1" />
 </base>
 <type>
 <code value="base64Binary" />
 </type>
 <type>
 <code value="boolean" />
 </type>
 <type>
 <code value="canonical" />
 </type>
 <type>
 <code value="code" />
 </type>
 <type>
 <code value="date" />
 </type>
 <type>
 <code value="dateTime" />
 </type>
 <type>
 <code value="decimal" />
 </type>
 <type>
 <code value="id" />
 </type>
 <type>
 <code value="instant" />
 </type>
 <type>
 <code value="integer" />
 </type>
 <type>
 <code value="markdown" />
 </type>
 <type>
 <code value="oid" />
 </type>
 <type>
 <code value="positiveInt" />
 </type>
 <type>
 <code value="string" />
 </type>
 <type>
 <code value="time" />
 </type>
 <type>
 <code value="unsignedInt" />
 </type>
 <type>
 <code value="uri" />
 </type>
 <type>
 <code value="url" />
 </type>
 <type>
 <code value="uuid" />
 </type>
 <type>
 <code value="Address" />
 </type>
 <type>
 <code value="Age" />
 </type>
 <type>
 <code value="Annotation" />
 </type>
 <type>
 <code value="Attachment" />
 </type>
 <type>
 <code value="CodeableConcept" />
 </type>
 <type>
 <code value="Coding" />
 </type>
 <type>
 <code value="ContactPoint" />
 </type>
 <type>
 <code value="Count" />
 </type>
 <type>
 <code value="Distance" />
 </type>
 <type>
 <code value="Duration" />
 </type>
 <type>
 <code value="HumanName" />
 </type>
 <type>
 <code value="Identifier" />
 </type>
 <type>
 <code value="Money" />
 </type>
 <type>
 <code value="Period" />
 </type>
 <type>
 <code value="Quantity" />
 </type>
 <type>
 <code value="Range" />
 </type>
 <type>
 <code value="Ratio" />
 </type>
 <type>
 <code value="Reference" />
 </type>
 <type>
 <code value="SampledData" />
 </type>
 <type>
 <code value="Signature" />
 </type>
 <type>
 <code value="Timing" />
 </type>
 <type>
 <code value="ContactDetail" />
 </type>
 <type>
 <code value="Contributor" />
 </type>
 <type>
 <code value="DataRequirement" />
 </type>
 <type>
 <code value="Expression" />
 </type>
 <type>
 <code value="ParameterDefinition" />
 </type>
 <type>
 <code value="RelatedArtifact" />
 </type>
 <type>
 <code value="TriggerDefinition" />
 </type>
 <type>
 <code value="UsageContext" />
 </type>
 <type>
 <code value="Dosage" />
 </type>
 <type>
 <code value="Meta" />
 </type>
 <constraint>
 <key value="ele-1" />
 <severity value="error" />
 <human value="All FHIR elements must have a @value or children" />
 <expression value="hasValue() or (children().count() &gt; id.count())" />
 <xpath value="@value|f:*|h:div" />
 <source value="http://hl7.org/fhir/StructureDefinition/Element" />
 </constraint>
 <isModifier value="false" />
 <isSummary value="false" />
 <mapping>
 <identity value="rim" />
 <map value="N/A" />
 </mapping>
 </element>
 </snapshot>
 <differential>
 <element id="Extension">
 <path value="Extension" />
 <short value="External Reference" />
 <definition value="An external reference with an optional description." />
 <min value="0" />
 <max value="*" />
 </element>
 <element id="Extension.extension">
 <path value="Extension.extension" />
 <slicing>
 <discriminator>
 <type value="value" />
 <path value="url" />
 </discriminator>
 <ordered value="false" />
 <rules value="open" />
 </slicing>
 </element>
 <element id="Extension.extension:id">
 <path value="Extension.extension" />
 <sliceName value="id" />
 <short value="An identifier such as ISBN:978-3-16-148410-0 or PMID:123456." />
 <min value="1" />
 <max value="1" />
 </element>
 <element id="Extension.extension:id.extension">
 <path value="Extension.extension.extension" />
 <min value="0" />
 <max value="0" />
 </element>
 <element id="Extension.extension:id.url">
 <path value="Extension.extension.url" />
 <min value="1" />
 <max value="1" />
 <fixedUri value="id" />
 </element>
 <element id="Extension.extension:id.valueUrl">
 <path value="Extension.extension.valueUrl" />
 <min value="1" />
 <max value="1" />
 <type>
 <code value="url" />
 </type>
 </element>
 <element id="Extension.extension:description">
 <path value="Extension.extension" />
 <sliceName value="description" />
 <short value="An optional description of the external reference." />
 <min value="0" />
 <max value="1" />
 </element>
 <element id="Extension.extension:description.extension">
 <path value="Extension.extension.extension" />
 <min value="0" />
 <max value="0" />
 </element>
 <element id="Extension.extension:description.url">
 <path value="Extension.extension.url" />
 <min value="1" />
 <fixedUri value="description" />
 </element>
 <element id="Extension.extension:description.valueString">
 <path value="Extension.extension.valueString" />
 <type>
 <code value="string" />
 </type>
 </element>
 <element id="Extension.url">
 <path value="Extension.url" />
 <fixedUri value="http://ga4gh.org/fhir/phenopackets/StructureDefinition/external-reference" />
 </element>
 <element id="Extension.value[x]">
 <path value="Extension.value[x]" />
 <min value="0" />
 <max value="0" />
 </element>
 </differential>
</StructureDefinition>

name : ExternalReference

{

}