<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/PH_Observation" />
  <name value="PH_Observation" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation">
      <path value="Observation" />
      <definition value="Measurements and simple assertions made about a patient, device or other subject.&#xA;Uses: Vital signs such as body weight, blood pressure, and temperature; Laboratory Data like blood glucose, or an estimated GFR; Imaging results like bone density or fetal measurements; Clinical Findings* such as abdominal tenderness; Device measurements such as EKG data or Pulse Oximetry data; Clinical assessment tools such as APGAR or a Glasgow Coma Score; Personal characteristics: such as eye-color; Social history like tobacco use, family support, or cognitive status; Core characteristics like pregnancy status, or a death assertion.&#xA;Alternate Name: Vital Signs; Measurement; Results; Tests" />
    </element>
    <element id="Observation.extension:address">
      <path value="Observation.extension" />
      <sliceName value="address" />
      <short value="Address where the observation was made" />
      <definition value="Address where the observation was made" />
      <comment value="This is an extension" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/Address" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Observation.extension:extOrganization">
      <path value="Observation.extension" />
      <sliceName value="extOrganization" />
      <short value="Health facility where the observation was made" />
      <definition value="Health facility where the observation was made" />
      <comment value="This is an extension" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/Ext_Organization" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Observation.extension:recordedDate">
      <path value="Observation.extension" />
      <sliceName value="recordedDate" />
      <short value="Date when the observation was submitted to NHDDR" />
      <definition value="Date when the observation was submitted to NHDDR" />
      <comment value="This is an extension" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/RecordedDate" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Observation.basedOn">
      <path value="Observation.basedOn" />
      <max value="0" />
    </element>
    <element id="Observation.partOf">
      <path value="Observation.partOf" />
      <max value="0" />
    </element>
    <element id="Observation.focus">
      <path value="Observation.focus" />
      <max value="0" />
    </element>
    <element id="Observation.issued">
      <path value="Observation.issued" />
      <max value="0" />
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
      <type>
        <code value="CodeableConcept" />
      </type>
      <type>
        <code value="string" />
      </type>
      <type>
        <code value="dateTime" />
      </type>
    </element>
    <element id="Observation.dataAbsentReason">
      <path value="Observation.dataAbsentReason" />
      <max value="0" />
    </element>
    <element id="Observation.bodySite">
      <path value="Observation.bodySite" />
      <max value="0" />
    </element>
    <element id="Observation.device">
      <path value="Observation.device" />
      <max value="0" />
    </element>
    <element id="Observation.referenceRange">
      <path value="Observation.referenceRange" />
      <max value="0" />
    </element>
    <element id="Observation.hasMember">
      <path value="Observation.hasMember" />
      <max value="0" />
    </element>
    <element id="Observation.derivedFrom">
      <path value="Observation.derivedFrom" />
      <max value="0" />
    </element>
    <element id="Observation.component">
      <path value="Observation.component" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>