<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="Forge-MyObservation3" />
  <meta>
    <versionId value="2" />
    <lastUpdated value="2016-06-02T13:53:45.058+00:00" />
  </meta>
  <url value="StructureDefinition/MyObservation" />
  <name value="MyObservation" />
  <status value="draft" />
  <fhirVersion value="1.0.2" />
  <kind value="resource" />
  <constrainedType value="Observation" />
  <abstract value="false" />
  <base value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <differential>
    <element>
      <path value="Observation" />
      <type>
        <code value="Observation" />
      </type>
    </element>
    <element>
      <path value="Observation.extension" />
      <slicing>
        <discriminator value="url" />
        <rules value="openAtEnd" />
      </slicing>
    </element>
    <element>
      <path value="Observation.extension" />
      <name value="MyExtension" />
      <definition value="Optional Extensions Element - found in all resources." />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="StructureDefinition/MyIntegerExtension" />
      </type>
    </element>
    <element>
      <path value="Observation.identifier" />
      <min value="1" />
      <max value="1" />
    </element>
    <element>
      <path value="Observation.code" />
      <binding>
        <strength value="required" />
        <valueSetReference>
          <reference value="http://example.org/fhir/ValueSet/my-observation-codes" />
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="Observation.subject" />
      <type>
        <code value="Reference" />
        <profile value="StructureDefinition/MyPatient" />
      </type>
    </element>
    <element>
      <path value="Observation.valueQuantity" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
  </differential>
</StructureDefinition>