<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="nfdi4health-ex-mds-study-masking" />
  <url value="https://www.nfdi4health.de/fhir/metadataschema/StructureDefinition/nfdi4health-ex-mds-masking" />
  <name value="NFDI4Health_EX_MDS_Study_Masking" />
  <title value="NFDI4Health EX MDS Study Masking" />
  <status value="draft" />
  <publisher value="NFDI4Health" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="https://www.nfdi4health.de" />
    </telecom>
  </contact>
  <description value="Group of items providing information about the masking of intervention(s) assignment" />
  <fhirVersion value="4.0.1" />
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <mapping>
    <identity value="NFDI4Health" />
    <name value="NFDI4Health to FHIR Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="ResearchStudy.extension" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Masking of intervention(s) assignment" />
      <definition value="Group of items providing information about the masking of intervention(s) assignment" />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.interventional.masking" />
      </mapping>
    </element>
    <element id="Extension.extension:general">
      <path value="Extension.extension" />
      <sliceName value="general" />
      <short value="Masking implemented?" />
      <definition value="Indication whether a masking (or blinding) of intervention(s) assignment is implemented (i.e., whether someone is prevented from having knowledge of the interventions assigned to individual participants)." />
      <min value="0" />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.interventional.masking.general" />
      </mapping>
    </element>
    <element id="Extension.extension:general.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:general.url">
      <path value="Extension.extension.url" />
      <fixedUri value="general" />
    </element>
    <element id="Extension.extension:general.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="boolean" />
      </type>
    </element>
    <element id="Extension.extension:roles">
      <path value="Extension.extension" />
      <sliceName value="roles" />
      <short value="Who is masked?" />
      <definition value="If masking is implemented, the party(ies) who are masked." />
      <comment value="Short Input Help: Select all that apply." />
      <min value="0" />
      <max value="*" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.interventional.masking.roles" />
      </mapping>
    </element>
    <element id="Extension.extension:roles.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:roles.url">
      <path value="Extension.extension.url" />
      <fixedUri value="roles" />
    </element>
    <element id="Extension.extension:roles.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="Coding" />
      </type>
      <binding>
        <strength value="required" />
        <description value="Value set defining codes to specify the party(ies) who are masked if masking is implemented." />
        <valueSet value="https://www.nfdi4health.de/fhir/metadataschema/ValueSet/nfdi4health-vs-mds-study-masking-roles-nci-local" />
      </binding>
    </element>
    <element id="Extension.extension:roles.value[x].system">
      <path value="Extension.extension.value[x].system" />
      <min value="1" />
    </element>
    <element id="Extension.extension:roles.value[x].code">
      <path value="Extension.extension.value[x].code" />
      <min value="1" />
    </element>
    <element id="Extension.extension:description">
      <path value="Extension.extension" />
      <sliceName value="description" />
      <short value="Additional information about masking" />
      <definition value="If needed, additional descriptive information about masking (e.g. information about other parties who may be masked)." />
      <comment value="Short Input Help: You can provide here additional information about masking, e.g. other parties who may be masked." />
      <min value="0" />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.interventional.masking.description" />
      </mapping>
    </element>
    <element id="Extension.extension:description.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:description.url">
      <path value="Extension.extension.url" />
      <fixedUri value="description" />
    </element>
    <element id="Extension.extension:description.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="string" />
      </type>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://www.nfdi4health.de/fhir/metadataschema/StructureDefinition/nfdi4health-ex-mds-masking" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>