<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="DARC-EXT" />
  <url value="http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/DARC-EXT" />
  <name value="DARC" />
  <status value="draft" />
  <description value="DARC stands for 'Dates Affecting Readiness to Consult' and is defines as:&#xD;&#xA;Periods of time between the referral and consult date when the patient is unavailable for a first consultation due to patient-related reasons." />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="ServiceRequest" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <definition value="DARC stands for 'Dates Affecting Readiness to Consult' and is defines as:&#xD;&#xA;Periods of time between the referral and consult date when the patient is unavailable for a first consultation due to patient-related reasons." />
    </element>
    <element id="Extension.extension:StartDate">
      <path value="Extension.extension" />
      <sliceName value="StartDate" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Extension.extension:StartDate.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:StartDate.url">
      <path value="Extension.extension.url" />
      <fixedUri value="StartDate" />
    </element>
    <element id="Extension.extension:StartDate.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
    <element id="Extension.extension:EndDate">
      <path value="Extension.extension" />
      <sliceName value="EndDate" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Extension.extension:EndDate.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:EndDate.url">
      <path value="Extension.extension.url" />
      <fixedUri value="EndDate" />
    </element>
    <element id="Extension.extension:EndDate.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
    <element id="Extension.extension:DARCCodes">
      <path value="Extension.extension" />
      <sliceName value="DARCCodes" />
      <min value="0" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Extension.extension:DARCCodes.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:DARCCodes.url">
      <path value="Extension.extension.url" />
      <fixedUri value="DARCCodes" />
    </element>
    <element id="Extension.extension:DARCCodes.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="CodeableConcept" />
      </type>
      <binding>
        <strength value="extensible" />
        <valueSet value="http://fhir.infoway-inforoute.ca/io/CA-eReC/ValueSet/DARC-DART-reason" />
      </binding>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/DARC-EXT" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <label value="To Date" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>