<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="shr-action-ExpectedPerformer-extension" />
  <text>
    <status value="generated" />
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p>
        <b>SHR ExpectedPerformer Extension</b>
      </p>
      <p>Who should carry out the tests. For example, the patient or caregiver.</p>
    </div>
  </text>
  <url value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-action-ExpectedPerformer-extension" />
  <identifier>
    <system value="http://standardhealthrecord.org" />
    <value value="shr.action.ExpectedPerformer" />
  </identifier>
  <version value="0.0.1" />
  <name value="SHR ExpectedPerformer Extension" />
  <title value="SHR ExpectedPerformer Extension" />
  <status value="draft" />
  <date value="2017-12-20" />
  <publisher value="The MITRE Corporation: Standard Health Record Collaborative" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://standardhealthrecord.org" />
    </telecom>
  </contact>
  <description value="Who should carry out the tests. For example, the patient or caregiver." />
  <fhirVersion value="3.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="*" />
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension:expectedperformer">
      <path value="Extension" />
      <short value="SHR ExpectedPerformer Extension" />
      <definition value="Who should carry out the tests. For example, the patient or caregiver." />
      <min value="0" />
      <max value="*" />
      <constraint>
        <key value="choice-1" />
        <severity value="error" />
        <human value="shr-action-ExpectedPerformer-extension SHALL have either extension('role') or extension('organization')" />
        <expression value="( extension('role').url | extension('organization').url ).distinct().count() == 1" />
      </constraint>
    </element>
    <element id="Extension:expectedperformer.extension:role">
      <path value="Extension.extension" />
      <sliceName value="role" />
      <definition value="Abstract parent class for human parties, such as practitioners, patients, research subjects, and related persons. Role can also represent an object playing a specific role, such as a room playing the role of operating theater. The value contains the entity (party) playing the role." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-entity-Role-extension" />
      </type>
    </element>
    <element id="Extension:expectedperformer.extension:organization">
      <path value="Extension.extension" />
      <sliceName value="organization" />
      <definition value="A social or legal structure formed by human beings." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-entity-Organization-extension" />
      </type>
    </element>
    <element id="Extension:expectedperformer.url">
      <path value="Extension.url" />
      <type>
        <code value="uri" />
      </type>
      <fixedUri value="http://standardhealthrecord.org/fhir/StructureDefinition/shr-action-ExpectedPerformer-extension" />
    </element>
    <element id="Extension:expectedperformer.value[x]">
      <path value="Extension.value[x]" />
      <min value="0" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>