<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="el-task" />
  <url value="http://fhir.essilorluxottica.com/fhir/StructureDefinition/el-task" />
  <version value="1.0.0" />
  <name value="ELTask" />
  <title value="EL Task" />
  <status value="draft" />
  <description value="The profile for the Task" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Task" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Task" />
  <derivation value="constraint" />
  <differential>
    <element id="Task.meta.tag">
      <path value="Task.meta.tag" />
      <binding>
        <strength value="required" />
        <valueSet value="http://fhir.essilorluxottica.com/fhir/ValueSet/el-metatag-vs" />
      </binding>
    </element>
    <element id="Task.description">
      <path value="Task.description" />
      <min value="1" />
    </element>
    <element id="Task.for">
      <path value="Task.for" />
      <min value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://fhir.essilorluxottica.com/fhir/StructureDefinition/el-patient" />
      </type>
    </element>
    <element id="Task.executionPeriod.start">
      <path value="Task.executionPeriod.start" />
      <min value="1" />
    </element>
    <element id="Task.executionPeriod.end">
      <path value="Task.executionPeriod.end" />
      <min value="1" />
    </element>
    <element id="Task.authoredOn">
      <path value="Task.authoredOn" />
      <min value="1" />
    </element>
    <element id="Task.lastModified">
      <path value="Task.lastModified" />
      <min value="1" />
    </element>
    <element id="Task.requester">
      <path value="Task.requester" />
      <min value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://fhir.essilorluxottica.com/fhir/StructureDefinition/el-practitioner" />
      </type>
    </element>
    <element id="Task.owner">
      <path value="Task.owner" />
      <min value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://fhir.essilorluxottica.com/fhir/StructureDefinition/el-organization" />
        <targetProfile value="http://fhir.essilorluxottica.com/fhir/StructureDefinition/el-practice" />
      </type>
    </element>
    <element id="Task.owner.extension">
      <path value="Task.owner.extension" />
      <min value="1" />
    </element>
    <element id="Task.owner.extension:el-organization-reference-type">
      <path value="Task.owner.extension" />
      <sliceName value="el-organization-reference-type" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://fhir.essilorluxottica.com/fhir/StructureDefinition/el-organization-reference-type-extension" />
      </type>
    </element>
  </differential>
</StructureDefinition>