<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://default.com/fhir/StructureDefinition/T_Observation" />
  <name value="T_Observation" />
  <status value="draft" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.identifier.period">
      <path value="Observation.identifier.period" />
      <max value="0" />
    </element>
    <element id="Observation.identifier.assigner">
      <path value="Observation.identifier.assigner" />
      <max value="0" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient" />
      </type>
    </element>
    <element id="Observation.issued">
      <path value="Observation.issued" />
      <max value="0" />
    </element>
    <element id="Observation.performer">
      <path value="Observation.performer" />
      <max value="0" />
    </element>
    <element id="Observation.dataAbsentReason">
      <path value="Observation.dataAbsentReason" />
      <max value="0" />
    </element>
    <element id="Observation.interpretation">
      <path value="Observation.interpretation" />
      <max value="0" />
    </element>
    <element id="Observation.comment">
      <path value="Observation.comment" />
      <max value="0" />
    </element>
    <element id="Observation.bodySite">
      <path value="Observation.bodySite" />
      <max value="0" />
    </element>
    <element id="Observation.method">
      <path value="Observation.method" />
      <max value="0" />
    </element>
    <element id="Observation.specimen">
      <path value="Observation.specimen" />
      <max value="0" />
    </element>
    <element id="Observation.device">
      <path value="Observation.device" />
      <max value="0" />
    </element>
    <element id="Observation.related">
      <path value="Observation.related" />
      <max value="0" />
    </element>
    <element id="Observation.component.dataAbsentReason">
      <path value="Observation.component.dataAbsentReason" />
      <max value="0" />
    </element>
    <element id="Observation.component.interpretation">
      <path value="Observation.component.interpretation" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>