AU eRequesting Implementation Guide
1.0.0-ci-build - CI Build

AU eRequesting Implementation Guide, published by HL7 Australia. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7au/au-fhir-erequesting/ and changes regularly. See the Directory of published versions

## Resource Profile: AUeRequestingPathologyRequest - XML Profile

Page standards status: Draft | Maturity Level: 1

XML representation of the au-erequesting-servicerequest-path resource profile.

Raw xml | Download

    <StructureDefinition xmlns="http://hl7.org/fhir">
      <id value="au-erequesting-servicerequest-path"/>
      <text>
        <status value="extensions"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition au-erequesting-servicerequest-path</b></p><a name="au-erequesting-servicerequest-path"> </a><a name="hcau-erequesting-servicerequest-path"> </a><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 : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64, " 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 : var(--ig-left,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_resource.png" alt="." style="background-color: white; background-color: inherit" title="Resource" class="hierarchy"/> <a href="StructureDefinition-au-erequesting-servicerequest-path-definitions.html#ServiceRequest" title="A request for a pathology service.">ServiceRequest</a><a name="ServiceRequest"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="StructureDefinition-au-erequesting-diagnosticrequest.html">AUeRequestingDiagnosticRequest</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">A pathology test request</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck13.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.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Slice Definition" class="hierarchy"/> <a style="font-style: italic; font-style: italic" href="StructureDefinition-au-erequesting-servicerequest-path-definitions.html#ServiceRequest.category">Slices for category</a><a name="ServiceRequest.category"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="font-style: italic"/><span style="opacity: 0.5; font-style: italic">1</span><span style="opacity: 0.5; font-style: italic">..</span><span style="opacity: 0.5; font-style: italic">*</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; font-style: italic; opacity: 0.5; font-style: italic" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5; font-style: italic">Classification of service</span><br style="font-style: italic"/><span style="font-weight:bold; font-style: italic">Slice: </span><span style="font-style: italic">Unordered, Open by pattern:$this</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck125.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_slicer.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-au-erequesting-servicerequest-path-definitions.html#ServiceRequest.category:path" title="Slice path">category:path</a><a name="ServiceRequest.category.2"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,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 : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Classification of service</span><br/><span style="font-weight:bold">Required Pattern: </span><span style="color: darkgreen">At least the following</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1241.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_blank.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_fixed.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Fixed Value" class="hierarchy"/> <a href="http://hl7.org/fhir/R4/datatypes-definitions.html#CodeableConcept.coding">coding</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..*</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#Coding">Coding</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Code defined by a terminology system<br/><span style="font-weight: bold">Fixed Value: </span><span style="color: darkgreen">(Complex)</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck12410.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_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_fixed.gif" alt="." style="background-color: white; background-color: inherit" title="Fixed Value" class="hierarchy"/> <a href="http://hl7.org/fhir/R4/datatypes-definitions.html#Coding.system">system</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,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 : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#uri">uri</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Identity of the terminology system<br/><span style="font-weight: bold">Fixed Value: </span><span style="color: darkgreen">http://snomed.info/sct</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck12400.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_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_fixed.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Fixed Value" class="hierarchy"/> <a href="http://hl7.org/fhir/R4/datatypes-definitions.html#Coding.code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,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 : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Symbol in syntax defined by the system<br/><span style="font-weight: bold">Fixed Value: </span><span style="color: darkgreen">108252007</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; 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: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-au-erequesting-servicerequest-path-definitions.html#ServiceRequest.code">code</a><a name="ServiceRequest.code"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">What is being requested/ordered</span><br class="binding"/><span style="font-weight:bold" title="null" class="binding">Binding: </span><a href="https://api.healthterminologies.gov.au/integration/R4/fhir/ValueSet/spia-requesting-refset-3" title="https://www.rcpa.edu.au/fhir/ValueSet/spia-requesting-refset-3" class="binding">RCPA - SPIA Requesting Pathology Terminology Reference Set <img src="external.png" alt="."/></a><span title="null" class="binding"> (</span><a href="http://hl7.org/fhir/R4/terminologies.html#preferred" title="Instances are encouraged to draw from the specified codes for interoperability purposes but are not required to do so to be considered conformant." class="binding">preferred</a><span title="null" class="binding">)</span></td></tr>
    <tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64, " 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="1"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="draft">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
            <valueCanonical
                            value="http://hl7.org.au/fhir/ereq/ImplementationGuide/hl7.fhir.au.ereq"/>
          </extension>
        </valueCode>
      </extension>
      <url
           value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-servicerequest-path"/>
      <version value="1.0.0-ci-build"/>
      <name value="AUeRequestingPathologyRequest"/>
      <title value="AU eRequesting Pathology Request"/>
      <status value="active"/>
      <date value="2025-10-20T07:23:52+00:00"/>
      <publisher value="HL7 Australia"/>
      <contact>
        <name value="HL7 Australia"/>
        <telecom>
          <system value="url"/>
          <value value="https://confluence.hl7.org/display/HAFWG"/>
        </telecom>
      </contact>
      <contact>
        <name value="HL7 Australia FHIR Work Group"/>
        <telecom>
          <system value="url"/>
          <value value="https://confluence.hl7.org/display/HAFWG"/>
          <use value="work"/>
        </telecom>
      </contact>
      <description
                   value="This profile sets minimum expectations for a ServiceRequest resource that is used to record, search, and fetch information about pathology requests for a patient. It is based on the [AU eRequesting Diagnostic Request](StructureDefinition-au-erequesting-diagnosticrequest.html) profile and identifies the additional constraints, extensions, vocabularies and value sets that **SHALL** be present in the ServiceRequest resource when conforming to this profile."/>
      <jurisdiction>
        <coding>
          <system value="urn:iso:std:iso:3166"/>
          <code value="AU"/>
        </coding>
      </jurisdiction>
      <copyright
                 value="Used by permission of HL7 International, all rights reserved Creative Commons License. HL7 Australia© 2024+; Licensed Under Creative Commons No Rights Reserved."/>
      <fhirVersion value="4.0.1"/>
      <mapping>
        <identity value="workflow"/>
        <uri value="http://hl7.org/fhir/workflow"/>
        <name value="Workflow Pattern"/>
      </mapping>
      <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/fivews"/>
        <name value="FiveWs Pattern Mapping"/>
      </mapping>
      <mapping>
        <identity value="quick"/>
        <uri value="http://siframework.org/cqf"/>
        <name value="Quality Improvement and Clinical Knowledge (QUICK)"/>
      </mapping>
      <kind value="resource"/>
      <abstract value="false"/>
      <type value="ServiceRequest"/>
      <baseDefinition
                      value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest"/>
      <derivation value="constraint"/>
      <snapshot>
        <extension
                   url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
          <valueString value="1.0.0-ci-build"/>
        </extension>
        <element id="ServiceRequest">
          <path value="ServiceRequest"/>
          <short value="A pathology test request"/>
          <definition value="A request for a pathology service."/>
          <alias value="diagnostic request"/>
          <alias value="referral"/>
          <alias value="referral request"/>
          <alias value="transfer of care request"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <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="http://hl7.org/fhir/StructureDefinition/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 or SHALL refer to the containing resource"/>
            <expression
                        value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"/>
            <xpath
                   value="not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))"/>
            <source
                    value="http://hl7.org/fhir/StructureDefinition/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="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
          </constraint>
          <constraint>
            <key value="dom-5"/>
            <severity value="error"/>
            <human
                   value="If a resource is contained in another resource, it SHALL NOT have a security label"/>
            <expression value="contained.meta.security.empty()"/>
            <xpath value="not(exists(f:contained/*/f:meta/f:security))"/>
            <source
                    value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
          </constraint>
          <constraint>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
              <valueBoolean value="true"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
              <valueMarkdown
                             value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."/>
            </extension>
            <key value="dom-6"/>
            <severity value="warning"/>
            <human
                   value="A resource should have narrative for robust management"/>
            <expression value="text.`div`.exists()"/>
            <xpath value="exists(f:text/h:div)"/>
            <source
                    value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
          </constraint>
          <constraint>
            <key value="prr-1"/>
            <severity value="error"/>
            <human value="orderDetail SHALL only be present if code is present"/>
            <expression value="orderDetail.empty() or code.exists()"/>
            <xpath value="exists(f:code) or not(exists(f:orderDetail))"/>
            <source
                    value="http://hl7.org/fhir/StructureDefinition/ServiceRequest"/>
          </constraint>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="rim"/>
            <map value="Entity. Role, or Act"/>
          </mapping>
          <mapping>
            <identity value="workflow"/>
            <map value="Request"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="Act[moodCode&lt;=INT]"/>
          </mapping>
        </element>
        <element id="ServiceRequest.id">
          <path value="ServiceRequest.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>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
              <valueUrl value="id"/>
            </extension>
            <code value="http://hl7.org/fhirpath/System.String"/>
          </type>
          <isModifier value="false"/>
          <isSummary value="true"/>
        </element>
        <element id="ServiceRequest.meta">
          <path value="ServiceRequest.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 might 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>
          <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="true"/>
        </element>
        <element id="ServiceRequest.implicitRules">
          <path value="ServiceRequest.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. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc."/>
          <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. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Resource.implicitRules"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="uri"/>
          </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="true"/>
          <isModifierReason
                            value="This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation"/>
          <isSummary value="true"/>
        </element>
        <element id="ServiceRequest.language">
          <path value="ServiceRequest.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>
          <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"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet">
              <valueCanonical value="http://hl7.org/fhir/ValueSet/all-languages"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="Language"/>
            </extension>
            <strength value="preferred"/>
            <description value="A human language."/>
            <valueSet value="http://hl7.org/fhir/ValueSet/languages|4.0.1"/>
          </binding>
        </element>
        <element id="ServiceRequest.text">
          <path value="ServiceRequest.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 can 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 information 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>
          <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="Act.text?"/>
          </mapping>
        </element>
        <element id="ServiceRequest.contained">
          <path value="ServiceRequest.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. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels."/>
          <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>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.extension">
          <path value="ServiceRequest.extension"/>
          <slicing>
            <discriminator>
              <type value="value"/>
              <path value="url"/>
            </discriminator>
            <rules value="open"/>
          </slicing>
          <short value="Extension"/>
          <definition value="An Extension"/>
          <min value="1"/>
          <max value="*"/>
          <base>
            <path value="DomainResource.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="ServiceRequest.extension:sexParameterForClinicalUse">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.extension"/>
          <sliceName value="sexParameterForClinicalUse"/>
          <short value="A context-specific sex parameter for clinical use"/>
          <definition
                      value="A parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="DomainResource.extension"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Extension"/>
            <profile
                     value="http://hl7.org/fhir/StructureDefinition/patient-sexParameterForClinicalUse"/>
          </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())"/>
            <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()"/>
            <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
          </constraint>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
        </element>
        <element id="ServiceRequest.extension:targetBodyStructure">
          <path value="ServiceRequest.extension"/>
          <sliceName value="targetBodyStructure"/>
          <short value="The target point for this procedure"/>
          <definition
                      value="The target body site used for this procedure.  Multiple locations are allowed."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="DomainResource.extension"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Extension"/>
            <profile
                     value="http://hl7.org/fhir/StructureDefinition/procedure-targetBodyStructure"/>
          </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())"/>
            <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()"/>
            <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
          </constraint>
          <isModifier value="false"/>
          <isSummary value="false"/>
        </element>
        <element id="ServiceRequest.extension:statusReason">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.extension"/>
          <sliceName value="statusReason"/>
          <short value="Reason for current status"/>
          <definition
                      value="Captures the reason for the current state of the resource."/>
          <comment
                   value="This is generally only used for &quot;exception&quot; statuses such as &quot;suspended&quot; or &quot;cancelled&quot;.  The reason for performing the request at all is captured in reasonCode, not here.  (Distinct reason codes for different statuses can be enforced using invariants if they are universal bindings)."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="DomainResource.extension"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Extension"/>
            <profile
                     value="http://hl7.org/fhir/StructureDefinition/request-statusReason"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="v2"/>
            <map value="Varies by domain"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".inboundRelationship[typeCode=SUBJ].source[classCode=CACT, moodCode=EVN].reasonCOde"/>
          </mapping>
        </element>
        <element id="ServiceRequest.extension:displaySequence">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.extension"/>
          <sliceName value="displaySequence"/>
          <short value="Display sequence"/>
          <definition
                      value="This extension applies to the ServiceRequest resource and is used to represent the integer assigned to an individual test or service in a ServiceRequest that corresponds with the sequential position in which a test or service appears on a paper request form.

    Sorting by display sequence enables more efficient reconciliation of paper and digital request data at the point of service provision."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="DomainResource.extension"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Extension"/>
            <profile
                     value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-displaysequence"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
        </element>
        <element id="ServiceRequest.extension:fastingPrecondition">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.extension"/>
          <sliceName value="fastingPrecondition"/>
          <short value="Fasting precondition"/>
          <definition
                      value="This extension applies to the ServiceRequest resource and is used to represent whether fasting is a recommended precondition for the diagnostic request. It conveys the requester's recommendation regarding fasting at the time of ordering, not the actual fasting status of the patient."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="DomainResource.extension"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Extension"/>
            <profile
                     value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-fastingprecondition"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
        </element>
        <element id="ServiceRequest.modifierExtension">
          <path value="ServiceRequest.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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
          <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."/>
          <requirements
                        value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
          <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>
          <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="true"/>
          <isModifierReason
                            value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.identifier">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.identifier"/>
          <short value="Identifiers assigned to this order"/>
          <definition
                      value="Identifiers assigned to this order instance by the orderer and/or the receiver and/or order fulfiller."/>
          <comment
                   value="The identifier.type element is used to distinguish between the identifiers assigned by the orderer (known as the 'Placer' in HL7 v2) and the producer of the observations in response to the order (known as the 'Filler' in HL7 v2).  For further discussion and examples see the resource notes section below."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.identifier"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Identifier"/>
            <profile value="http://hl7.org/fhir/StructureDefinition/Identifier"/>
            <profile
                     value="http://hl7.org.au/fhir/StructureDefinition/au-localorderidentifier"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.identifier"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.identifier"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.2, ORC.3, RF1-6 / RF1-11,"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".identifier"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="ClinicalStatement.identifier"/>
          </mapping>
        </element>
        <element id="ServiceRequest.instantiatesCanonical">
          <path value="ServiceRequest.instantiatesCanonical"/>
          <short value="Instantiates FHIR protocol or definition"/>
          <definition
                      value="The URL pointing to a FHIR-defined protocol, guideline, orderset or other definition that is adhered to in whole or in part by this ServiceRequest."/>
          <comment
                   value="Note: This is a business identifier, not a resource identifier (see [discussion](http://hl7.org/fhir/R4/resource.html#identifiers)).  It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types.  For example, multiple Patient and a Person resource instance might share the same social insurance number."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.instantiatesCanonical"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="canonical"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/ActivityDefinition|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/PlanDefinition|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.instantiatesCanonical"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="Varies by domain"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=DEFN].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.instantiatesUri">
          <path value="ServiceRequest.instantiatesUri"/>
          <short value="Instantiates external protocol or definition"/>
          <definition
                      value="The URL pointing to an externally maintained protocol, guideline, orderset or other definition that is adhered to in whole or in part by this ServiceRequest."/>
          <comment
                   value="This might be an HTML page, PDF, etc. or could just be a non-resolvable URI identifier."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.instantiatesUri"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="uri"/>
          </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="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.instantiatesUri"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="Varies by domain"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=DEFN].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.basedOn">
          <path value="ServiceRequest.basedOn"/>
          <short value="What request fulfills"/>
          <definition value="Plan/proposal/order fulfilled by this request."/>
          <alias value="fulfills"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.basedOn"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/CarePlan|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/ServiceRequest|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/MedicationRequest|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.basedOn"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.8 (plus others)"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=FLFS].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.replaces">
          <path value="ServiceRequest.replaces"/>
          <short value="What request replaces"/>
          <definition
                      value="The request takes the place of the referenced completed or terminated request(s)."/>
          <alias value="supersedes"/>
          <alias value="prior"/>
          <alias value="renewed order"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.replaces"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/ServiceRequest|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.replaces"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="Handled by message location of ORC (ORC.1=RO or RU)"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=RPLC].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.requisition"/>
          <short value="Composite Request ID"/>
          <definition
                      value="A shared identifier common to all service requests that were authorized more or less simultaneously by a single author, representing the composite or group identifier."/>
          <comment
                   value="Requests are linked either by a &quot;basedOn&quot; relationship (i.e. one request is fulfilling another) or by having a common requisition. Requests that are part of the same requisition are generally treated independently from the perspective of changing their state or maintaining them after initial creation."/>
          <requirements
                        value="Some business processes need to know if multiple items were ordered as part of the same &quot;requisition&quot; for billing or other purposes."/>
          <alias value="grouperId"/>
          <alias value="groupIdentifier"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.requisition"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Identifier"/>
            <profile
                     value="http://hl7.org.au/fhir/StructureDefinition/au-localorderidentifier"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.groupIdentifier"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.4"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".inboundRelationship(typeCode=COMP].source[moodCode=INT].identifier"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.id">
          <path value="ServiceRequest.requisition.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="ServiceRequest.requisition.extension">
          <path value="ServiceRequest.requisition.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="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. 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 can 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>
          <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"/>
          <mapping>
            <identity value="rim"/>
            <map value="n/a"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.use">
          <path value="ServiceRequest.requisition.use"/>
          <short value="usual | official | temp | secondary | old (If known)"/>
          <definition value="The purpose of this identifier."/>
          <comment
                   value="Applications can assume that an identifier is permanent unless it explicitly says that it is temporary."/>
          <requirements
                        value="Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Identifier.use"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </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="true"/>
          <isModifierReason
                            value="This is labeled as &quot;Is Modifier&quot; because applications should not mistake a temporary id for a permanent one."/>
          <isSummary value="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="IdentifierUse"/>
            </extension>
            <strength value="required"/>
            <description
                         value="Identifies the purpose for this identifier, if known ."/>
            <valueSet value="http://hl7.org/fhir/ValueSet/identifier-use|4.0.1"/>
          </binding>
          <mapping>
            <identity value="v2"/>
            <map value="N/A"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="Role.code or implied by context"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.type">
          <path value="ServiceRequest.requisition.type"/>
          <short value="Coded identifier type for local order identifier"/>
          <definition
                      value="A coded type for the identifier that can be used to determine which identifier to use for a specific purpose."/>
          <comment
                   value="This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type."/>
          <requirements
                        value="Allows users to make use of identifiers when the identifier system is not known."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="Identifier.type"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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="true"/>
          <binding>
            <strength value="required"/>
            <valueSet
                      value="http://terminology.hl7.org.au/ValueSet/order-identifier-type"/>
          </binding>
          <mapping>
            <identity value="v2"/>
            <map value="CX.5"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="Role.code or implied by context"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.type.id">
          <path value="ServiceRequest.requisition.type.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="ServiceRequest.requisition.type.extension">
          <path value="ServiceRequest.requisition.type.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="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. 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 can 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>
          <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"/>
          <mapping>
            <identity value="rim"/>
            <map value="n/a"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.type.coding">
          <path value="ServiceRequest.requisition.type.coding"/>
          <short value="Code defined by a terminology system"/>
          <definition
                      value="A reference to a code defined by a terminology system."/>
          <comment
                   value="Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information.  Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true."/>
          <requirements
                        value="Allows for alternative encodings within a code system, and translations to other code systems."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CodeableConcept.coding"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Coding"/>
          </type>
          <patternCoding>
            <system value="http://terminology.hl7.org/CodeSystem/v2-0203"/>
            <code value="PGN"/>
          </patternCoding>
          <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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="C*E.1-8, C*E.10-22"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="union(., ./translation)"/>
          </mapping>
          <mapping>
            <identity value="orim"/>
            <map
                 value="fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.type.text">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
            <valueBoolean value="true"/>
          </extension>
          <path value="ServiceRequest.requisition.type.text"/>
          <short value="Plain text representation of the concept"/>
          <definition
                      value="A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user."/>
          <comment
                   value="Very often the text is the same as a displayName of one of the codings."/>
          <requirements
                        value="The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="CodeableConcept.text"/>
            <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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="C*E.9. But note many systems use C*E.2 for this"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value="./originalText[mediaType/code=&quot;text/plain&quot;]/data"/>
          </mapping>
          <mapping>
            <identity value="orim"/>
            <map
                 value="fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.system">
          <path value="ServiceRequest.requisition.system"/>
          <short
                 value="System identifier namespace for the organisation that assigned the order identifier"/>
          <definition
                      value="Establishes the namespace for the value - that is, a URL that describes a set values that are unique."/>
          <comment value="Identifier.system is always case sensitive."/>
          <requirements
                        value="There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="Identifier.system"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="uri"/>
          </type>
          <example>
            <label value="General"/>
            <valueUri value="http://www.acme.com/identifiers/patient"/>
          </example>
          <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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="CX.4 / EI-2-4"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="II.root or Role.id.root"/>
          </mapping>
          <mapping>
            <identity value="servd"/>
            <map value="./IdentifierType"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.value">
          <path value="ServiceRequest.requisition.value"/>
          <short value="Order identifier"/>
          <definition
                      value="The portion of the identifier typically relevant to the user and which is unique within the context of the system."/>
          <comment
                   value="If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value's primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](http://hl7.org/fhir/R4/extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="Identifier.value"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="string"/>
          </type>
          <example>
            <label value="General"/>
            <valueString value="123456"/>
          </example>
          <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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="CX.1 / EI.1"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value="II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)"/>
          </mapping>
          <mapping>
            <identity value="servd"/>
            <map value="./Value"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.period">
          <path value="ServiceRequest.requisition.period"/>
          <short value="Time period when id is/was valid for use"/>
          <definition
                      value="Time period during which identifier is/was valid for use."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Identifier.period"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Period"/>
          </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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="CX.7 + CX.8"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="Role.effectiveTime or implied by context"/>
          </mapping>
          <mapping>
            <identity value="servd"/>
            <map value="./StartDate and ./EndDate"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.assigner">
          <path value="ServiceRequest.requisition.assigner"/>
          <short value="Organisation that assigned the order identifier"/>
          <definition value="Organization that issued/manages the identifier."/>
          <comment
                   value="The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Identifier.assigner"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Organization|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="CX.4 / (CX.4,CX.9,CX.10)"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value="II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper"/>
          </mapping>
          <mapping>
            <identity value="servd"/>
            <map value="./IdentifierIssuingAuthority"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.assigner.id">
          <path value="ServiceRequest.requisition.assigner.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="ServiceRequest.requisition.assigner.extension">
          <path value="ServiceRequest.requisition.assigner.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="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. 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 can 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>
          <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"/>
          <mapping>
            <identity value="rim"/>
            <map value="n/a"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.assigner.reference">
          <path value="ServiceRequest.requisition.assigner.reference"/>
          <short value="Literal reference, Relative, internal or absolute URL"/>
          <definition
                      value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources."/>
          <comment
                   value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure &quot;/[type]/[id]&quot; then it should be assumed that the reference is to a FHIR RESTful server."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Reference.reference"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="string"/>
          </type>
          <condition value="ref-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>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.assigner.type">
          <path value="ServiceRequest.requisition.assigner.type"/>
          <short value="Type the reference refers to (e.g. &quot;Patient&quot;)"/>
          <definition
                      value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

    The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. &quot;Patient&quot; is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)."/>
          <comment
                   value="This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Reference.type"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="uri"/>
          </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="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="FHIRResourceTypeExt"/>
            </extension>
            <strength value="extensible"/>
            <description
                         value="Aa resource (or, for logical models, the URI of the logical model)."/>
            <valueSet value="http://hl7.org/fhir/ValueSet/resource-types|4.0.1"/>
          </binding>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.assigner.identifier">
          <path value="ServiceRequest.requisition.assigner.identifier"/>
          <short value="Logical reference, when literal reference is not known"/>
          <definition
                      value="An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference."/>
          <comment
                   value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

    When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

    Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

    Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Reference.identifier"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Identifier"/>
          </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="true"/>
          <mapping>
            <identity value="rim"/>
            <map value=".identifier"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requisition.assigner.display">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
            <valueBoolean value="true"/>
          </extension>
          <path value="ServiceRequest.requisition.assigner.display"/>
          <short value="Name of the assigning organisation"/>
          <definition
                      value="Plain text narrative that identifies the resource in addition to the resource reference."/>
          <comment
                   value="This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what's being referenced, not to fully describe it."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="Reference.display"/>
            <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="true"/>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.status">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.status"/>
          <short value="The status of the request"/>
          <definition value="The status of the order."/>
          <comment
                   value="The status is generally fully in the control of the requester - they determine whether the order is draft or active and, after it has been activated, competed, cancelled or suspended. States relating to the activities of the performer are reflected on either the corresponding event (see [Event Pattern](http://hl7.org/fhir/R4/event.html) for general discussion) or using the [Task](http://hl7.org/fhir/R4/task.html) resource."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.status"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="true"/>
          <isModifierReason
                            value="This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid"/>
          <isSummary value="true"/>
          <binding>
            <strength value="required"/>
            <valueSet
                      value="http://terminology.hl7.org.au/ValueSet/au-erequesting-request-status"/>
          </binding>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.status"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.status"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.5,RF1-1"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".status"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Action.currentStatus"/>
          </mapping>
        </element>
        <element id="ServiceRequest.intent">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.intent"/>
          <short
                 value="proposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option"/>
          <definition
                      value="Whether the request is a proposal, plan, an original order or a reflex order."/>
          <comment
                   value="This element is labeled as a modifier because the intent alters when and how the resource is actually applicable."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.intent"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </type>
          <fixedCode value="order"/>
          <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>
          <mustSupport value="true"/>
          <isModifier value="true"/>
          <isModifierReason
                            value="This element changes the interpretation of all descriptive attributes. For example &quot;the time the request is recommended to occur&quot; vs. &quot;the time the request is authorized to occur&quot; or &quot;who is recommended to perform the request&quot; vs. &quot;who is authorized to perform the request"/>
          <isSummary value="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ServiceRequestIntent"/>
            </extension>
            <strength value="required"/>
            <description value="The kind of service request."/>
            <valueSet value="http://hl7.org/fhir/ValueSet/request-intent|4.0.1"/>
          </binding>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.intent"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.class"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="N/A"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".moodCode (nuances beyond PRP/PLAN/RQO would need to be elsewhere)"/>
          </mapping>
        </element>
        <element id="ServiceRequest.category">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.category"/>
          <slicing>
            <discriminator>
              <type value="pattern"/>
              <path value="$this"/>
            </discriminator>
            <rules value="open"/>
          </slicing>
          <short value="Classification of service"/>
          <definition
                      value="A code that classifies the service for searching, sorting and display purposes (e.g. &quot;Surgical Procedure&quot;)."/>
          <comment
                   value="There may be multiple axis of categorization depending on the context or use case for retrieving or displaying the resource.  The level of granularity is defined by the category concepts in the value set."/>
          <requirements
                        value="Used for filtering what service request are retrieved and displayed."/>
          <min value="1"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.category"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ServiceRequestCategory"/>
            </extension>
            <strength value="example"/>
            <description value="Classification of the requested service."/>
            <valueSet
                      value="http://hl7.org/fhir/ValueSet/servicerequest-category|4.0.1"/>
          </binding>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.class"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="RF1-5"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".outboundRelationship[typeCode=&quot;COMP].target[classCode=&quot;LIST&quot;, moodCode=&quot;INT&quot;].code"/>
          </mapping>
        </element>
        <element id="ServiceRequest.category:path">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.category"/>
          <sliceName value="path"/>
          <short value="Classification of service"/>
          <definition
                      value="A code that classifies the service for searching, sorting and display purposes (e.g. &quot;Surgical Procedure&quot;)."/>
          <comment
                   value="There may be multiple axis of categorization depending on the context or use case for retrieving or displaying the resource.  The level of granularity is defined by the category concepts in the value set."/>
          <requirements
                        value="Used for filtering what service request are retrieved and displayed."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.category"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </type>
          <patternCodeableConcept>
            <coding>
              <system value="http://snomed.info/sct"/>
              <code value="108252007"/>
            </coding>
          </patternCodeableConcept>
          <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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ServiceRequestCategory"/>
            </extension>
            <strength value="example"/>
            <description value="Classification of the requested service."/>
            <valueSet
                      value="http://hl7.org/fhir/ValueSet/servicerequest-category|4.0.1"/>
          </binding>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.class"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="RF1-5"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".outboundRelationship[typeCode=&quot;COMP].target[classCode=&quot;LIST&quot;, moodCode=&quot;INT&quot;].code"/>
          </mapping>
        </element>
        <element id="ServiceRequest.priority">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.priority"/>
          <short value="routine | urgent | asap | stat"/>
          <definition
                      value="Indicates how quickly the ServiceRequest should be addressed with respect to other requests."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.priority"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </type>
          <meaningWhenMissing
                              value="If missing, this task should be performed with normal priority"/>
          <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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ServiceRequestPriority"/>
            </extension>
            <strength value="required"/>
            <description
                         value="Identifies the level of importance to be assigned to actioning the request."/>
            <valueSet
                      value="http://hl7.org/fhir/ValueSet/request-priority|4.0.1"/>
          </binding>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.priority"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.grade"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="TQ1.9, RF1-2"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".priorityCode"/>
          </mapping>
        </element>
        <element id="ServiceRequest.doNotPerform">
          <path value="ServiceRequest.doNotPerform"/>
          <short value="True if service/procedure should not be performed"/>
          <definition
                      value="Set this to true if the record is saying that the service/procedure should NOT be performed."/>
          <comment
                   value="In general, only the code and timeframe will be present, though occasional additional qualifiers such as body site or even performer could be included to narrow the scope of the prohibition.  If the ServiceRequest.code and ServiceRequest.doNotPerform both contain negation, that will reinforce prohibition and should not have a double negative interpretation."/>
          <requirements
                        value="Used for do not ambulate, do not elevate head of bed, do not flush NG tube, do not take blood pressure on a certain arm, etc."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.doNotPerform"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="boolean"/>
          </type>
          <meaningWhenMissing
                              value="If missing, the request is a positive request e.g. &quot;do perform&quot;"/>
          <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="true"/>
          <isModifierReason
                            value="If true this element negates the specified action. For Example,  instead of a request for a procedure, it is a request for the procedure to not occur."/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.doNotPerform"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".actionNegationInd"/>
          </mapping>
        </element>
        <element id="ServiceRequest.code">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.code"/>
          <short value="What is being requested/ordered"/>
          <definition
                      value="A code that identifies a particular service (i.e., procedure, diagnostic investigation, or panel of investigations) that have been requested."/>
          <comment
                   value="Refer to the AU eRequesting Pathology Request Profile Specific Implementation Guidance for `ServiceRequest.code` usage."/>
          <alias value="service requested"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.code"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <strength value="preferred"/>
            <valueSet
                      value="https://www.rcpa.edu.au/fhir/ValueSet/spia-requesting-refset-3"/>
          </binding>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.code"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.what[x]"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="PR1-3 / OBR-4  (varies by domain)"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".code"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Procedure.procedureCode"/>
          </mapping>
        </element>
        <element id="ServiceRequest.code.id">
          <path value="ServiceRequest.code.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="ServiceRequest.code.extension">
          <path value="ServiceRequest.code.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="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. 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 can 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>
          <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"/>
          <mapping>
            <identity value="rim"/>
            <map value="n/a"/>
          </mapping>
        </element>
        <element id="ServiceRequest.code.coding">
          <path value="ServiceRequest.code.coding"/>
          <short value="Code defined by a terminology system"/>
          <definition
                      value="A reference to a code defined by a terminology system."/>
          <comment
                   value="Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information.  Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true."/>
          <requirements
                        value="Allows for alternative encodings within a code system, and translations to other code systems."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="CodeableConcept.coding"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Coding"/>
          </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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="C*E.1-8, C*E.10-22"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="union(., ./translation)"/>
          </mapping>
          <mapping>
            <identity value="orim"/>
            <map
                 value="fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding"/>
          </mapping>
        </element>
        <element id="ServiceRequest.code.text">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
            <valueBoolean value="true"/>
          </extension>
          <path value="ServiceRequest.code.text"/>
          <short value="Plain text representation of the concept"/>
          <definition
                      value="A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user."/>
          <comment
                   value="Very often the text is the same as a displayName of one of the codings."/>
          <requirements
                        value="The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CodeableConcept.text"/>
            <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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="C*E.9. But note many systems use C*E.2 for this"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value="./originalText[mediaType/code=&quot;text/plain&quot;]/data"/>
          </mapping>
          <mapping>
            <identity value="orim"/>
            <map
                 value="fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText"/>
          </mapping>
        </element>
        <element id="ServiceRequest.orderDetail">
          <path value="ServiceRequest.orderDetail"/>
          <short value="Additional order information"/>
          <definition
                      value="Additional details and instructions about the how the services are to be delivered.   For example, and order for a urinary catheter may have an order detail for an external or indwelling catheter, or an order for a bandage may require additional instructions specifying how the bandage should be applied."/>
          <comment
                   value="For information from the medical record intended to support the delivery of the requested services, use the `supportingInformation` element."/>
          <alias value="detailed instructions"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.orderDetail"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </type>
          <condition value="prr-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>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="OrderDetail"/>
            </extension>
            <strength value="example"/>
            <description
                         value="Codified order entry details which are based on order context."/>
            <valueSet
                      value="http://hl7.org/fhir/ValueSet/servicerequest-orderdetail|4.0.1"/>
          </binding>
          <mapping>
            <identity value="v2"/>
            <map value="NTE"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".code"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Procedure.procedureCode"/>
          </mapping>
        </element>
        <element id="ServiceRequest.quantity[x]">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.quantity[x]"/>
          <short
                 value="An informative value indicating the number of fulfilments requested. If not provided the quantity is 1. For Rule 3 Exemption, this value may be greater than 1; however, the server does not currently support tracking multiple fulfilments from a single order."/>
          <definition
                      value="An amount of service being requested which can be a quantity ( for example $1,500 home modification), a ratio ( for example, 20 half day visits per month), or a range (2.0 to 1.8 Gy per fraction)."/>
          <requirements
                        value="When ordering a service the number of service items may need to be specified separately from the the service item."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.quantity[x]"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Quantity"/>
          </type>
          <type>
            <code value="Range"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="NTE"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".quantity"/>
          </mapping>
        </element>
        <element id="ServiceRequest.subject">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.subject"/>
          <short value="Individual or Entity the service is ordered for"/>
          <definition
                      value="On whom or what the service is to be performed. This is usually a human patient, but can also be requested on animals, groups of humans or animals, devices such as dialysis machines, or even locations (typically for environmental scans)."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.subject"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org.au/fhir/core/StructureDefinition/au-core-patient"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.subject"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.subject[x]"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="PID"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".participation[typeCode=SBJ].role"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="ClinicalStatement.subject"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.subject"/>
          </mapping>
        </element>
        <element id="ServiceRequest.encounter">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.encounter"/>
          <short value="Encounter in which the request was created"/>
          <definition
                      value="An encounter that provides additional information about the healthcare context in which this request is made."/>
          <alias value="context"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.encounter"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org.au/fhir/core/StructureDefinition/au-core-encounter"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.encounter"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.context"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="PV1"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".inboundRelationship(typeCode=COMP].source[classCode&lt;=PCPR, moodCode=EVN]"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="ClinicalStatement.encounter"/>
          </mapping>
        </element>
        <element id="ServiceRequest.encounter.id">
          <path value="ServiceRequest.encounter.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="ServiceRequest.encounter.extension">
          <path value="ServiceRequest.encounter.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="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. 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 can 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>
          <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"/>
          <mapping>
            <identity value="rim"/>
            <map value="n/a"/>
          </mapping>
        </element>
        <element id="ServiceRequest.encounter.reference">
          <path value="ServiceRequest.encounter.reference"/>
          <short value="Literal reference, Relative, internal or absolute URL"/>
          <definition
                      value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources."/>
          <comment
                   value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure &quot;/[type]/[id]&quot; then it should be assumed that the reference is to a FHIR RESTful server."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="Reference.reference"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="string"/>
          </type>
          <condition value="ref-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>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.encounter.type">
          <path value="ServiceRequest.encounter.type"/>
          <short value="Type the reference refers to (e.g. &quot;Patient&quot;)"/>
          <definition
                      value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

    The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. &quot;Patient&quot; is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)."/>
          <comment
                   value="This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Reference.type"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="uri"/>
          </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="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="FHIRResourceTypeExt"/>
            </extension>
            <strength value="extensible"/>
            <description
                         value="Aa resource (or, for logical models, the URI of the logical model)."/>
            <valueSet value="http://hl7.org/fhir/ValueSet/resource-types|4.0.1"/>
          </binding>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.encounter.identifier">
          <path value="ServiceRequest.encounter.identifier"/>
          <short value="Logical reference, when literal reference is not known"/>
          <definition
                      value="An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference."/>
          <comment
                   value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

    When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

    Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

    Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Reference.identifier"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Identifier"/>
          </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="true"/>
          <mapping>
            <identity value="rim"/>
            <map value=".identifier"/>
          </mapping>
        </element>
        <element id="ServiceRequest.encounter.display">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
            <valueBoolean value="true"/>
          </extension>
          <path value="ServiceRequest.encounter.display"/>
          <short value="Text alternative for the resource"/>
          <definition
                      value="Plain text narrative that identifies the resource in addition to the resource reference."/>
          <comment
                   value="This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what's being referenced, not to fully describe it."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="Reference.display"/>
            <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="true"/>
          <mapping>
            <identity value="rim"/>
            <map value="N/A"/>
          </mapping>
        </element>
        <element id="ServiceRequest.occurrence[x]">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.occurrence[x]"/>
          <short value="When service should occur"/>
          <definition
                      value="The date/time at which the requested service should occur."/>
          <alias value="schedule"/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.occurrence[x]"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="dateTime"/>
          </type>
          <type>
            <code value="Period"/>
          </type>
          <type>
            <code value="Timing"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.occurrence[x]"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.planned"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="TQ1/TQ2, OBR-7/OBR-8"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".effectiveTime"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Procedure.procedureSchedule"/>
          </mapping>
        </element>
        <element id="ServiceRequest.asNeeded[x]">
          <path value="ServiceRequest.asNeeded[x]"/>
          <short value="Preconditions for service"/>
          <definition
                      value="If a CodeableConcept is present, it indicates the pre-condition for performing the service.  For example &quot;pain&quot;, &quot;on flare-up&quot;, etc."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.asNeeded[x]"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="boolean"/>
          </type>
          <type>
            <code value="CodeableConcept"/>
          </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="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ProcedureAsNeededReason"/>
            </extension>
            <strength value="example"/>
            <description
                         value="A coded concept identifying the pre-condition that should hold prior to performing a procedure.  For example &quot;pain&quot;, &quot;on flare-up&quot;, etc."/>
            <valueSet
                      value="http://hl7.org/fhir/ValueSet/medication-as-needed-reason|4.0.1"/>
          </binding>
          <mapping>
            <identity value="rim"/>
            <map
                 value="boolean: precondition.negationInd (inversed - so negationInd = true means asNeeded=false CodeableConcept: precondition.observationEventCriterion[code=&quot;Assertion&quot;].value"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Proposal.prnReason.reason"/>
          </mapping>
        </element>
        <element id="ServiceRequest.authoredOn">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.authoredOn"/>
          <short value="Date request signed"/>
          <definition value="When the request transitioned to being actionable."/>
          <alias value="orderedOn"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.authoredOn"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="dateTime"/>
          </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="au-ereq-srr-01"/>
            <severity value="error"/>
            <human value="Date shall include at least year, month, and day"/>
            <expression value="$this.toString().length() &gt;= 10"/>
            <source
                    value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest"/>
          </constraint>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.authoredOn"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.recorded"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.9,  RF1-7 / RF1-9"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".participation[typeCode=AUT].time"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Proposal.proposedAtTime"/>
          </mapping>
        </element>
        <element id="ServiceRequest.requester">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.requester"/>
          <short value="Who/what is requesting service"/>
          <definition
                      value="The individual who initiated the request and has responsibility for its activation."/>
          <comment
                   value="This not the dispatcher, but rather who is the authorizer.  This element is not intended to handle delegation which would generally be managed through the Provenance resource."/>
          <alias value="author"/>
          <alias value="orderer"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.requester"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org.au/fhir/core/StructureDefinition/au-core-practitionerrole"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.requester"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.author"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.12, PRT"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".participation[typeCode=AUT].role"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="ClinicalStatement.statementAuthor"/>
          </mapping>
        </element>
        <element id="ServiceRequest.performerType">
          <path value="ServiceRequest.performerType"/>
          <short value="Performer role"/>
          <definition
                      value="Desired type of performer for doing the requested service."/>
          <comment
                   value="This is a  role, not  a participation type.  In other words, does not describe the task but describes the capacity.  For example, “compounding pharmacy”, “psychiatrist” or “internal referral”."/>
          <alias value="specialty"/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.performerType"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ServiceRequestParticipantRole"/>
            </extension>
            <strength value="example"/>
            <description
                         value="Indicates specific responsibility of an individual within the care team, such as &quot;Primary physician&quot;, &quot;Team coordinator&quot;, &quot;Caregiver&quot;, etc."/>
            <valueSet
                      value="http://hl7.org/fhir/ValueSet/participant-role|4.0.1"/>
          </binding>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.performerType"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.actor"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="PRT, RF!-3"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".participation[typeCode=PRF].role[scoper.determinerCode=KIND].code"/>
          </mapping>
        </element>
        <element id="ServiceRequest.performer">
          <path value="ServiceRequest.performer"/>
          <short value="Requested performer"/>
          <definition
                      value="The desired performer for doing the requested service.  For example, the surgeon, dermatopathologist, endoscopist, etc."/>
          <comment
                   value="If multiple performers are present, it is interpreted as a list of *alternative* performers without any preference regardless of order.  If order of preference is needed use the [request-performerOrder extension](http://hl7.org/fhir/R4/extension-request-performerorder.html).  Use CareTeam to represent a group of performers (for example, Practitioner A *and* Practitioner B)."/>
          <alias value="request recipient"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.performer"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Practitioner|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/PractitionerRole|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Organization|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/CareTeam|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/HealthcareService|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Patient|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Device|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/RelatedPerson|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.performer"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.actor"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map
                 value="PRT, Practitioner: PRD-2/PRD-7 where PRD-3 = RT; Organization: PRD-10 where PRD-3 = RT"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".participation[typeCode=PRF].role[scoper.determinerCode=INSTANCE]"/>
          </mapping>
        </element>
        <element id="ServiceRequest.locationCode">
          <path value="ServiceRequest.locationCode"/>
          <short value="Requested location"/>
          <definition
                      value="The preferred location(s) where the procedure should actually happen in coded or free text form. E.g. at home or nursing day care center."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.locationCode"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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="true"/>
          <binding>
            <extension
                       url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
              <valueString value="ServiceRequestLocation"/>
            </extension>
            <strength value="example"/>
            <description value="A location type where services are delivered."/>
            <valueSet
                      value="http://terminology.hl7.org/ValueSet/v3-ServiceDeliveryLocationRoleType"/>
          </binding>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.actor"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".participation[typeCode=LOC].role[scoper.determinerCode=KIND].code"/>
          </mapping>
        </element>
        <element id="ServiceRequest.locationReference">
          <path value="ServiceRequest.locationReference"/>
          <short value="Requested location"/>
          <definition
                      value="A reference to the the preferred location(s) where the procedure should actually happen. E.g. at home or nursing day care center."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.locationReference"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Location|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.actor"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".participation[typeCode=LOC].role[scoper.determinerCode=INSTANCE]"/>
          </mapping>
        </element>
        <element id="ServiceRequest.reasonCode">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.reasonCode"/>
          <short value="Explanation/Justification for procedure or service"/>
          <definition
                      value="An explanation or justification for why this service is being requested in coded or textual form.   This is often for billing purposes.  May relate to the resources referred to in `supportingInfo`."/>
          <comment
                   value="This element represents why the referral is being made and may be used to decide how the service will be performed, or even if it will be performed at all.   Use `CodeableConcept.text` element if the data is free (uncoded) text as shown in the [CT Scan example](http://hl7.org/fhir/R4/servicerequest-example-di.html)."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.reasonCode"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <strength value="preferred"/>
            <valueSet
                      value="https://healthterminologies.gov.au/fhir/ValueSet/reason-for-request-1"/>
          </binding>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.reasonCode"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.why[x]"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.16, RF1-10"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".reasonCode"/>
          </mapping>
        </element>
        <element id="ServiceRequest.reasonReference">
          <path value="ServiceRequest.reasonReference"/>
          <short value="Explanation/Justification for service or service"/>
          <definition
                      value="Indicates another resource that provides a justification for why this service is being requested.   May relate to the resources referred to in `supportingInfo`."/>
          <comment
                   value="This element represents why the referral is being made and may be used to decide how the service will be performed, or even if it will be performed at all.    To be as specific as possible,  a reference to  *Observation* or *Condition* should be used if available.  Otherwise when referencing  *DiagnosticReport*  it should contain a finding  in `DiagnosticReport.conclusion` and/or `DiagnosticReport.conclusionCode`.   When using a reference to *DocumentReference*, the target document should contain clear findings language providing the relevant reason for this service request.  Use  the CodeableConcept text element in `ServiceRequest.reasonCode` if the data is free (uncoded) text as shown in the [CT Scan example](http://hl7.org/fhir/R4/servicerequest-example-di.html)."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.reasonReference"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Condition|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Observation|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/DiagnosticReport|4.0.1"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/DocumentReference|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.reasonReference"/>
          </mapping>
          <mapping>
            <identity value="w5"/>
            <map value="FiveWs.why[x]"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="ORC.16"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=RSON].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.insurance">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.insurance"/>
          <short value="Associated insurance coverage"/>
          <definition
                      value="Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be needed for delivering the requested service."/>
          <comment
                   value="The provision of an insurance attribute describes a recommendation to be considered by the Filler and does not guarantee that this recommendation will be satisfied."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.insurance"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-coverage"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.insurance"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="IN1/IN2"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=COVBY].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.supportingInfo">
          <path value="ServiceRequest.supportingInfo"/>
          <slicing>
            <discriminator>
              <type value="profile"/>
              <path value="$this.resolve()"/>
            </discriminator>
            <rules value="open"/>
          </slicing>
          <short value="Additional clinical information"/>
          <definition
                      value="Additional clinical information about the patient or specimen that may influence the services or their interpretations.     This information includes diagnosis, clinical findings and other observations.  In laboratory ordering these are typically referred to as &quot;ask at order entry questions (AOEs)&quot;.  This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example,  reporting the amount of inspired oxygen for blood gas measurements."/>
          <comment
                   value="To represent information about how the services are to be delivered use the `instructions` element."/>
          <alias value="Ask at order entry question"/>
          <alias value="AOE"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.supportingInfo"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Resource|4.0.1"/>
          </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="workflow"/>
            <map value="Request.supportingInfo"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="Accompanying segments"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=PERT].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.supportingInfo:pregnancyStatus">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.supportingInfo"/>
          <sliceName value="pregnancyStatus"/>
          <short value="The patient's pregnancy status"/>
          <definition
                      value="Additional clinical information about the patient or specimen that may influence the services or their interpretations.     This information includes diagnosis, clinical findings and other observations.  In laboratory ordering these are typically referred to as &quot;ask at order entry questions (AOEs)&quot;.  This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example,  reporting the amount of inspired oxygen for blood gas measurements."/>
          <comment
                   value="To represent information about how the services are to be delivered use the `instructions` element."/>
          <alias value="Ask at order entry question"/>
          <alias value="AOE"/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.supportingInfo"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/uv/ips/StructureDefinition/Observation-pregnancy-status-uv-ips"/>
          </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="au-ereq-srr-02"/>
            <severity value="error"/>
            <human
                   value="Pregnancy status shall be pregnant (SNOMED CT code 77386006)"/>
            <expression
                        value="$this.resolve().value.coding.where(system = 'http://snomed.info/sct' and code = '77386006').exists()"/>
            <source
                    value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest"/>
          </constraint>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.supportingInfo"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="Accompanying segments"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=PERT].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.supportingInfo:clinicalContext">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.supportingInfo"/>
          <sliceName value="clinicalContext"/>
          <short
                 value="Clinical context narrative information providing an overview of the patient's current clinical situation"/>
          <definition
                      value="Additional clinical information about the patient or specimen that may influence the services or their interpretations.     This information includes diagnosis, clinical findings and other observations.  In laboratory ordering these are typically referred to as &quot;ask at order entry questions (AOEs)&quot;.  This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example,  reporting the amount of inspired oxygen for blood gas measurements."/>
          <comment
                   value="To represent information about how the services are to be delivered use the `instructions` element."/>
          <alias value="Ask at order entry question"/>
          <alias value="AOE"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.supportingInfo"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-clinicalcontext-documentreference"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.supportingInfo"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="Accompanying segments"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".outboundRelationship[typeCode=PERT].target"/>
          </mapping>
        </element>
        <element id="ServiceRequest.specimen">
          <path value="ServiceRequest.specimen"/>
          <short value="Procedure Samples"/>
          <definition
                      value="One or more specimens that the laboratory procedure will use."/>
          <comment
                   value="Many diagnostic procedures need a specimen, but the request itself is not actually about the specimen. This element is for when the diagnostic is requested on already existing specimens and the request points to the specimen it applies to.    Conversely, if the request is entered first with an unknown specimen, then the [Specimen](http://hl7.org/fhir/R4/specimen.html) resource points to the ServiceRequest."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.specimen"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Specimen|4.0.1"/>
          </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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="SPM"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".participation[typeCode=SPC].role"/>
          </mapping>
        </element>
        <element id="ServiceRequest.bodySite">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.bodySite"/>
          <short value="Location on Body"/>
          <definition
                      value="Anatomic location where the procedure should be performed. This is the target site."/>
          <comment
                   value="Only used if not implicit in the code found in ServiceRequest.code.  If the use case requires BodySite to be handled as a separate resource instead of an inline coded element (e.g. to identify and track separately)  then use the standard extension [procedure-targetBodyStructure](http://hl7.org/fhir/R4/extension-procedure-targetbodystructure.html)."/>
          <requirements
                        value="Knowing where the procedure is performed is important for tracking if multiple sites are possible."/>
          <alias value="location"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.bodySite"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="CodeableConcept"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="true"/>
          <binding>
            <strength value="preferred"/>
            <valueSet
                      value="https://healthterminologies.gov.au/fhir/ValueSet/body-site-1"/>
          </binding>
          <mapping>
            <identity value="v2"/>
            <map value="SPM"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value="targetSiteCode"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="Procedure.targetBodySite"/>
          </mapping>
        </element>
        <element id="ServiceRequest.note">
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:populate-if-known"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-placer"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-filler"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:handle"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:able-to-populate"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-server"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
            <extension url="code">
              <valueCode value="SHALL:no-error"/>
            </extension>
            <extension url="actor">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/ActorDefinition/au-erequesting-actor-patient"/>
            </extension>
            <extension
                       url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-source">
              <valueCanonical
                              value="http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-diagnosticrequest|1.0.0-ci-build"/>
            </extension>
          </extension>
          <path value="ServiceRequest.note"/>
          <short value="Comments"/>
          <definition
                      value="Any other notes and comments made about the service request. For example, internal billing notes."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.note"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Annotation"/>
          </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>
          <mustSupport value="true"/>
          <isModifier value="false"/>
          <isSummary value="false"/>
          <mapping>
            <identity value="workflow"/>
            <map value="Request.note"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="NTE"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".inboundRelationship(typeCode=SUBJ].source[classCode=ANNGEN, moodCode=EVN].value[xsi:type=ST]"/>
          </mapping>
          <mapping>
            <identity value="quick"/>
            <map value="ClinicalStatement.additionalText"/>
          </mapping>
        </element>
        <element id="ServiceRequest.patientInstruction">
          <path value="ServiceRequest.patientInstruction"/>
          <short value="Patient or consumer-oriented instructions"/>
          <definition
                      value="Instructions in terms that are understood by the patient or consumer."/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="ServiceRequest.patientInstruction"/>
            <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="true"/>
          <mapping>
            <identity value="v2"/>
            <map value="NTE"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map value=".text"/>
          </mapping>
        </element>
        <element id="ServiceRequest.relevantHistory">
          <path value="ServiceRequest.relevantHistory"/>
          <short value="Request provenance"/>
          <definition value="Key events in the history of the request."/>
          <comment
                   value="This might not include provenances for all versions of the request – only those deemed “relevant” or important.
    This SHALL NOT include the Provenance associated with this current version of the resource.  (If that provenance is deemed to be a “relevant” change, it will need to be added as part of a later update.  Until then, it can be queried directly as the Provenance that points to this version using _revinclude
    All Provenances should have some historical version of this Request as their subject."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="ServiceRequest.relevantHistory"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Reference"/>
            <targetProfile
                           value="http://hl7.org/fhir/StructureDefinition/Provenance|4.0.1"/>
          </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="workflow"/>
            <map value="Request.relevantHistory"/>
          </mapping>
          <mapping>
            <identity value="v2"/>
            <map value="N/A"/>
          </mapping>
          <mapping>
            <identity value="rim"/>
            <map
                 value=".inboundRelationship(typeCode=SUBJ].source[classCode=CACT, moodCode=EVN]"/>
          </mapping>
        </element>
      </snapshot>
      <differential>
        <element id="ServiceRequest">
          <path value="ServiceRequest"/>
          <short value="A pathology test request"/>
          <definition value="A request for a pathology service."/>
        </element>
        <element id="ServiceRequest.category">
          <path value="ServiceRequest.category"/>
          <slicing>
            <discriminator>
              <type value="pattern"/>
              <path value="$this"/>
            </discriminator>
            <rules value="open"/>
          </slicing>
        </element>
        <element id="ServiceRequest.category:path">
          <path value="ServiceRequest.category"/>
          <sliceName value="path"/>
          <min value="1"/>
          <max value="1"/>
          <patternCodeableConcept>
            <coding>
              <system value="http://snomed.info/sct"/>
              <code value="108252007"/>
            </coding>
          </patternCodeableConcept>
        </element>
        <element id="ServiceRequest.code">
          <path value="ServiceRequest.code"/>
          <comment
                   value="Refer to the AU eRequesting Pathology Request Profile Specific Implementation Guidance for `ServiceRequest.code` usage."/>
          <binding>
            <strength value="preferred"/>
            <valueSet
                      value="https://www.rcpa.edu.au/fhir/ValueSet/spia-requesting-refset-3"/>
          </binding>
        </element>
      </differential>
    </StructureDefinition>