<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="0d8f981d-3fdf-487f-b698-6c0356bd2669" />
  <meta>
    <versionId value="3" />
    <lastUpdated value="2021-10-18T11:28:21.359+00:00" />
  </meta>
  <url value="http://nccn.info/fhir/StructureDefinition/ActivityExtension" />
  <name value="NCCNActivityExtension" />
  <status value="draft" />
  <date value="2021-10-18T11:28:20.9400183+00:00" />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Questionnaire.item" />
  </context>
  <context>
    <type value="element" />
    <expression value="Questionnaire.item.item" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://nccn.info/fhir/StructureDefinition/ActivityExtension" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <min value="1" />
      <type>
        <code value="code" />
      </type>
      <binding>
        <strength value="required" />
        <description value="Distinguishes the activity" />
        <valueSet value="http://nccn.org/fhir/ValueSet/Activity" />
      </binding>
    </element>
  </differential>
</StructureDefinition>