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  <context>
    <type value="element" />
    <expression value="C" />
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  <context>
    <type value="element" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element>
      <path value="Extension" />
      <short value="" />
      <definition value="" />
      <mustSupport value="false" />
      <isModifier value="false" />
    </element>
    <element>
      <path value="Extension.url" />
      <fixedUri value="https://simplifier.net/zeissveracity/StructureDefinition/vision-data-rec-ids-added-post-approval" />
    </element>
    <element>
      <path value="Extension.valueString" />
      <short value="" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="valueString" />
      </type>
      <mustSupport value="true" />
    </element>
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</StructureDefinition>