<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/JillianDecPatient" />
  <name value="JillianDecPatient" />
  <status value="draft" />
  <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.extension:ptOccupationExtension">
      <path value="Patient.extension" />
      <sliceName value="ptOccupationExtension" />
      <short value="ptoccupation" />
      <definition value="Patient's occupation" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/PtOccupationExtension" />
      </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:MRNidentifier">
      <path value="Patient.identifier" />
      <sliceName value="MRNidentifier" />
      <min value="1" />
      <max value="1" />
      <fixedIdentifier>
        <type>
          <coding>
            <system value="http://unitsofmeasure.org" />
          </coding>
        </type>
      </fixedIdentifier>
    </element>
    <element id="Patient.identifier:MRNidentifier.system">
      <path value="Patient.identifier.system" />
      <min value="1" />
    </element>
    <element id="Patient.identifier:MRNidentifier.value">
      <path value="Patient.identifier.value" />
      <min value="1" />
    </element>
    <element id="Patient.identifier:DLidentifier">
      <path value="Patient.identifier" />
      <sliceName value="DLidentifier" />
      <max value="1" />
    </element>
    <element id="Patient.identifier:DLidentifier.system">
      <path value="Patient.identifier.system" />
      <min value="1" />
    </element>
    <element id="Patient.identifier:DLidentifier.value">
      <path value="Patient.identifier.value" />
      <min value="1" />
    </element>
    <element id="Patient.name">
      <path value="Patient.name" />
      <min value="1" />
      <type>
        <code value="HumanName" />
        <profile value="https://example.org/fhir/StructureDefinition/JillianDecHumanName" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Patient.name.family">
      <path value="Patient.name.family" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Patient.name.given">
      <path value="Patient.name.given" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Patient.birthDate">
      <path value="Patient.birthDate" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Patient.address">
      <path value="Patient.address" />
      <constraint>
        <key value="adr01" />
        <requirements value="If the patient has a temporary address, the period this address is in use should be filled in" />
        <severity value="warning" />
        <human value="Enter period for any temporary address" />
        <expression value="(use='temp') implies period.exists()" />
      </constraint>
    </element>
    <element id="Patient.address.use">
      <path value="Patient.address.use" />
      <condition value="adr01" />
    </element>
    <element id="Patient.address.period">
      <path value="Patient.address.period" />
      <condition value="adr01" />
    </element>
  </differential>
</StructureDefinition>