<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/Issue02-DerivedUScorePatient" />
  <name value="Issue02-DerivedUScorePatient" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Patient" />
  <baseDefinition value="http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient" />
  <derivation value="constraint" />
  <differential>
    <element id="Patient.extension:race">
      <path value="Patient.extension" />
      <sliceName value="race" />
    </element>
    <element id="Patient.extension:race.extension">
      <path value="Patient.extension.extension" />
      <min value="1" />
    </element>
    <element id="Patient.extension:ethnicity">
      <path value="Patient.extension" />
      <sliceName value="ethnicity" />
    </element>
    <element id="Patient.extension:ethnicity.extension">
      <path value="Patient.extension.extension" />
      <min value="1" />
    </element>
    <element id="Patient.identifier">
      <path value="Patient.identifier" />
      <mustSupport value="false" />
    </element>
    <element id="Patient.gender">
      <path value="Patient.gender" />
      <mustSupport value="false" />
    </element>
  </differential>
</StructureDefinition>