<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="0d1a2eb0-7caa-42ba-8a57-4347c8e79857" />
  <meta>
    <versionId value="1" />
    <lastUpdated value="2016-11-21T16:35:54.946+00:00" />
  </meta>
  <url value="http://stelar.org/StructureDefinition/stelar/extension/cohortGroup" />
  <name value="Cohort Group" />
  <status value="draft" />
  <publisher value="HERC" />
  <date value="2016-11-21" />
  <description value="A variable containing information which identifies a subject as part of a subgroup within the cohort e.g. in MAAS a binary variable" />
  <fhirVersion value="1.0.1" />
  <kind value="datatype" />
  <constrainedType value="Extension" />
  <abstract value="false" />
  <context value="Basic" />
  <base value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <snapshot>
    <element>
      <path value="Extension" />
      <short value="Cohort Group" />
      <definition value="A variable containing information which identifies a subject as part of a subgroup within the cohort e.g. in MAAS a binary variable" />
      <mustSupport value="true" />
      <isModifier value="false" />
    </element>
    <element>
      <path value="Extension.valueCode" />
      <name value="Cohort Group" />
      <definition value="A variable containing information which identifies a subject as part of a subgroup within the cohort e.g. in MAAS a binary variable" />
      <min value="1" />
      <max value="*" />
      <type>
        <code value="code" />
      </type>
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
        <valueSetUri value="http://stelar.org/valueSet/cvs-cohortGroup" />
      </binding>
    </element>
  </snapshot>
</StructureDefinition>