<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="shr-core-Reason-extension" />
  <text>
    <status value="generated" />
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p>
        <b>SHR Reason Extension</b>
      </p>
      <p>The justification for an action or non-action, conclusion, opinion, etc.</p>
    </div>
  </text>
  <url value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-core-Reason-extension" />
  <identifier>
    <system value="http://standardhealthrecord.org" />
    <value value="shr.core.Reason" />
  </identifier>
  <version value="0.0.1" />
  <name value="SHR Reason Extension" />
  <title value="SHR Reason Extension" />
  <status value="draft" />
  <date value="2017-12-20" />
  <publisher value="The MITRE Corporation: Standard Health Record Collaborative" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://standardhealthrecord.org" />
    </telecom>
  </contact>
  <description value="The justification for an action or non-action, conclusion, opinion, etc." />
  <fhirVersion value="3.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="*" />
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension:reason">
      <path value="Extension" />
      <short value="SHR Reason Extension" />
      <definition value="The justification for an action or non-action, conclusion, opinion, etc." />
      <min value="0" />
      <max value="*" />
      <constraint>
        <key value="choice-1" />
        <severity value="error" />
        <human value="shr-core-Reason-extension SHALL have either extension('string') or extension('codeableconcept') or extension('content')" />
        <expression value="( extension('string').url | extension('codeableconcept').url | extension('content').url ).distinct().count() == 1" />
      </constraint>
    </element>
    <element id="Extension:reason.extension:string">
      <path value="Extension.extension" />
      <sliceName value="string" />
      <definition value="The justification for an action or non-action, conclusion, opinion, etc." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://standardhealthrecord.org/fhir/StructureDefinition/primitive-string-extension" />
      </type>
    </element>
    <element id="Extension:reason.extension:codeableconcept">
      <path value="Extension.extension" />
      <sliceName value="codeableconcept" />
      <definition value="A set of codes drawn from different coding systems, representing the same concept." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-core-CodeableConcept-extension" />
      </type>
    </element>
    <element id="Extension:reason.extension:content">
      <path value="Extension.extension" />
      <sliceName value="content" />
      <definition value="An item that can constitute the payload of an Entry, aka an EntryElement." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-base-Content-extension" />
      </type>
    </element>
    <element id="Extension:reason.url">
      <path value="Extension.url" />
      <type>
        <code value="uri" />
      </type>
      <fixedUri value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-core-Reason-extension" />
    </element>
    <element id="Extension:reason.value[x]">
      <path value="Extension.value[x]" />
      <min value="0" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>