<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="NCDBMIObservation" />
  <url value="https://fhir.inso-world.com/ncd-prevention-games/StructureDefinition/NCDBMIObservation" />
  <name value="NCDBMIObservation" />
  <title value="NCD BMI Observation" />
  <status value="draft" />
  <description value="The Observation resource for BMI" />
  <fhirVersion value="5.0.0" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.basedOn">
      <path value="Observation.basedOn" />
      <max value="0" />
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding">
      <path value="Observation.code.coding" />
      <slicing>
        <discriminator>
          <type value="pattern" />
          <path value="$this" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding:loinc">
      <path value="Observation.code.coding" />
      <sliceName value="loinc" />
      <min value="0" />
      <max value="1" />
      <patternCoding>
        <system value="http://loinc.org" />
      </patternCoding>
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding:loinc.userSelected">
      <path value="Observation.code.coding.userSelected" />
      <max value="0" />
    </element>
    <element id="Observation.code.coding:snomed">
      <path value="Observation.code.coding" />
      <sliceName value="snomed" />
      <min value="0" />
      <max value="1" />
      <patternCoding>
        <system value="http://snomed.info/sct" />
      </patternCoding>
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding:snomed.userSelected">
      <path value="Observation.code.coding.userSelected" />
      <max value="0" />
    </element>
    <element id="Observation.code.text">
      <path value="Observation.code.text" />
      <max value="0" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.inso-world.com/ncd-prevention-games/StructureDefinition/NCDPatient" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.focus">
      <path value="Observation.focus" />
      <max value="0" />
    </element>
    <element id="Observation.encounter">
      <path value="Observation.encounter" />
      <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]" />
      <slicing>
        <discriminator>
          <type value="type" />
          <path value="$this" />
        </discriminator>
        <rules value="closed" />
      </slicing>
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]:valueQuantity">
      <path value="Observation.value[x]" />
      <sliceName value="valueQuantity" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Quantity" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]:valueQuantity.comparator">
      <path value="Observation.value[x].comparator" />
      <max value="0" />
    </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.specimen">
      <path value="Observation.specimen" />
      <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>