<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="Observation-Heart-Rate" />
  <url value="https://fhir.testingterminology.org/StructureDefinition/Observation-Heart-Rate" />
  <version value="0.1.0" />
  <name value="Observation_Heart_Rate" />
  <status value="draft" />
  <description value="Example Observation depicting a heart rate measurement." />
  <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.code">
      <path value="Observation.code" />
      <binding>
        <strength value="required" />
        <valueSet value="https://fhir.testingterminology.org/ValueSet/Valueset-Heart-Rate-Snomed-CT" />
      </binding>
    </element>
    <element id="Observation.code.coding.system">
      <path value="Observation.code.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.code.coding.version">
      <path value="Observation.code.coding.version" />
      <min value="1" />
    </element>
    <element id="Observation.code.coding.code">
      <path value="Observation.code.coding.code" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>