<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.note" />
  <name value="ExtDiagnosticReportNote" />
  <title value="Clinical-Annotation-Extension" />
  <status value="draft" />
  <description value="In R5, this has been added" />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="DiagnosticReport" />
  </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://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.note" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <min value="1" />
      <type>
        <code value="Annotation" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Extension.value[x].author[x]">
      <path value="Extension.value[x].author[x]" />
      <mustSupport value="true" />
    </element>
    <element id="Extension.value[x].time">
      <path value="Extension.value[x].time" />
      <mustSupport value="true" />
    </element>
    <element id="Extension.value[x].text">
      <path value="Extension.value[x].text" />
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>