<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://NCA.org/fhir/StructureDefinition/MyPatient" />
  <name value="MyPatient" />
  <status value="draft" />
  <description value="Test Profile of Patient" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Patient" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Patient" />
  <derivation value="constraint" />
  <differential>
    <element id="Patient">
      <path value="Patient" />
      <definition value="Test Profile of Patient" />
    </element>
    <element id="Patient.extension">
      <path value="Patient.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="0" />
    </element>
    <element id="Patient.extension:OccupationExtension">
      <path value="Patient.extension" />
      <sliceName value="OccupationExtension" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/OccupationExtension" />
      </type>
    </element>
    <element id="Patient.extension:birthplaceExtension">
      <path value="Patient.extension" />
      <sliceName value="birthplaceExtension" />
      <min value="0" />
      <type>
        <code value="Extension" />
        <profile value="http://hl7.org/fhir/StructureDefinition/patient-birthPlace" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Patient.identifier">
      <path value="Patient.identifier" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="system" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Patient.identifier:official">
      <path value="Patient.identifier" />
      <sliceName value="official" />
    </element>
    <element id="Patient.identifier:official.system">
      <path value="Patient.identifier.system" />
      <min value="1" />
      <fixedUri value="https://fhir.nhs.uk/Id/nhs-number" />
    </element>
    <element id="Patient.identifier:official.value">
      <path value="Patient.identifier.value" />
      <min value="1" />
    </element>
    <element id="Patient.identifier:local">
      <path value="Patient.identifier" />
      <sliceName value="local" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Patient.identifier:local.system">
      <path value="Patient.identifier.system" />
      <fixedUri value="https://nca.nhs.uk/MRN" />
    </element>
    <element id="Patient.name">
      <path value="Patient.name" />
      <type>
        <code value="HumanName" />
        <profile value="https://nca.org/fhir/StructureDefinition/MyHumanName" />
      </type>
    </element>
    <element id="Patient.gender">
      <path value="Patient.gender" />
      <mustSupport value="true" />
    </element>
    <element id="Patient.birthDate">
      <path value="Patient.birthDate" />
      <min value="1" />
      <condition value="DCWbirt-1" />
      <constraint>
        <key value="DCWbirt-1" />
        <severity value="warning" />
        <human value="Warning if under 18" />
        <expression value="now() - 18 years &gt; birthDate" />
      </constraint>
      <mustSupport value="true" />
    </element>
    <element id="Patient.address">
      <path value="Patient.address" />
      <constraint>
        <key value="add-1" />
        <requirements value="(use = 'temp') implies period.exists()" />
        <severity value="error" />
        <human value="perod of address should be filled in if its a temporary address" />
      </constraint>
    </element>
    <element id="Patient.address.use">
      <path value="Patient.address.use" />
      <condition value="add-1" />
    </element>
    <element id="Patient.address.period">
      <path value="Patient.address.period" />
      <condition value="add-1" />
    </element>
    <element id="Patient.contact.telecom">
      <path value="Patient.contact.telecom" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="use" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Patient.contact.telecom:privateDetails">
      <path value="Patient.contact.telecom" />
      <sliceName value="privateDetails" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Patient.contact.telecom:privateDetails.system">
      <path value="Patient.contact.telecom.system" />
      <fixedCode value="home" />
    </element>
    <element id="Patient.contact.telecom:privateDetails.value">
      <path value="Patient.contact.telecom.value" />
      <min value="1" />
    </element>
    <element id="Patient.contact.telecom:privateDetails.use">
      <path value="Patient.contact.telecom.use" />
      <min value="1" />
      <fixedCode value="home" />
    </element>
    <element id="Patient.contact.telecom:workDetails">
      <path value="Patient.contact.telecom" />
      <sliceName value="workDetails" />
    </element>
    <element id="Patient.contact.telecom:workDetails.use">
      <path value="Patient.contact.telecom.use" />
      <fixedCode value="work" />
    </element>
    <element id="Patient.contact.telecom:workDetails.rank">
      <path value="Patient.contact.telecom.rank" />
      <max value="0" />
    </element>
    <element id="Patient.contact.telecom:workDetails.period">
      <path value="Patient.contact.telecom.period" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>