<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/MyObservation" />
  <name value="MyObservation" />
  <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.identifier.value">
      <path value="Observation.identifier.value" />
      <label value="mutation_id" />
    </element>
    <element id="Observation.partOf.reference">
      <path value="Observation.partOf.reference" />
      <label value="reference" />
    </element>
    <element id="Observation.category.coding.code">
      <path value="Observation.category.coding.code" />
      <label value="mutation_type" />
    </element>
    <element id="Observation.code.text">
      <path value="Observation.code.text" />
      <label value="weight, height, rhythm, heart_rate" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <label value="patient_id" />
    </element>
    <element id="Observation.encounter.reference">
      <path value="Observation.encounter.reference" />
      <label value="encounter" />
    </element>
    <element id="Observation.issued">
      <path value="Observation.issued" />
      <label value="mutation_found_dt" />
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <label value="value" />
    </element>
    <element id="Observation.note.text">
      <path value="Observation.note.text" />
      <label value="notes" />
    </element>
    <element id="Observation.bodySite.coding.code">
      <path value="Observation.bodySite.coding.code" />
      <label value="location_id" />
    </element>
    <element id="Observation.bodySite.coding.display">
      <path value="Observation.bodySite.coding.display" />
      <label value="location_name" />
    </element>
    <element id="Observation.component.code.coding.code">
      <path value="Observation.component.code.coding.code" />
      <label value="negative_twave_id" />
    </element>
  </differential>
</StructureDefinition>