<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/MyObservation" />
  <name value="MyObservation" />
  <status value="draft" />
  <fhirVersion value="3.0.2" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.category">
      <path value="Observation.category" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="coding" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="1" />
    </element>
    <element id="Observation.category.coding">
      <path value="Observation.category.coding" />
      <min value="1" />
    </element>
    <element id="Observation.category.coding.system">
      <path value="Observation.category.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.category.coding.code">
      <path value="Observation.category.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.category.coding.display">
      <path value="Observation.category.coding.display" />
      <min value="1" />
    </element>
    <element id="Observation.category:observationCategory">
      <path value="Observation.category" />
      <sliceName value="observationCategory" />
      <min value="1" />
      <max value="1" />
      <binding>
        <strength value="required" />
      </binding>
    </element>
    <element id="Observation.category:observationCategory.coding">
      <path value="Observation.category.coding" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.category:observationCategory.coding.system">
      <path value="Observation.category.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.category:observationCategory.coding.code">
      <path value="Observation.category.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.category:observationCategory.coding.display">
      <path value="Observation.category.coding.display" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>