<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://npcr.se/fhir/StructureDefinition/npcr-targeted-biopsy" />
  <name value="NPCR_Targeted_Biopsy" />
  <status value="draft" />
  <description value="Extension to record whether MRI-targeted biopsies were performed, per NPCR Variabelbeskrivning variable D_RiktBiopsi (Riktade biopsier efter MRT).&#xD;&#xA;&#xD;&#xA;Source variable: D_RiktBiopsi&#xD;&#xA;- Datatyp: Lista (0/1/98)&#xD;&#xA;- Listvärden: 0 = Nej, 1 = Ja, 98 = Uppgift saknas&#xD;&#xA;- Teknisk giltighetstid: 2013-04-27 -&#xD;&#xA;- Obligatorisk: Ja (when D_Vavn = 1)&#xD;&#xA;- Beteende/logik: D_Vavn = 1 → D_RiktBiopsi = obligatorisk. At least one of D_RiktBiopsi, D_SystBiopsi, D_OklarBiopsi must equal 1 (clinical rule: some biopsy type must have been taken).&#xD;&#xA;&#xD;&#xA;This extension is bound to Procedure as its only context, specifically intended for use on NPCRBiopsyProcedure instances.&#xD;&#xA;&#xD;&#xA;Data type: code, bound (required) to NPCRBiopsyFlagCodes ValueSet. This ValueSet is shared with extensions NPCR_Systematic_Biopsy and NPCR_Unclear_Biopsy because all three variables share the identical 0/1/98 Listvärden pattern in NPCR Variabelbeskrivning.&#xD;&#xA;&#xD;&#xA;Terminology binding rationale: NPCR documentation does not provide an international code system binding for this Lista variable. The extension uses the NPCRBiopsyFlag CodeSystem (0/1/98) to preserve NPCR's internal coded values.&#xD;&#xA;&#xD;&#xA;Relationship to NPCRMRIProcedure: This extension indicates that MRI-targeted biopsies were performed (as opposed to systematic or unclear biopsies). The actual MRI procedure itself is modelled as a separate NPCRMRIProcedure resource (via D_BiopMR, D_MRdatum). The targeted biopsy technique (cognitive, fusion, in-bore) is captured in a separate extension NPCR_Targeted_Biopsy_Technique, conditional on this extension = Ja." />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Procedure" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <mustSupport value="true" />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://npcr.se/fhir/StructureDefinition/npcr-targeted-biopsy" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <min value="1" />
      <type>
        <code value="code" />
      </type>
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
        <valueSet value="https://npcr.se/fhir/ValueSet/npcr-biopsy-flag-codes" />
      </binding>
    </element>
  </differential>
</StructureDefinition>