Search Parameter deReference
<SearchParameter xmlns="http://hl7.org/fhir"> <id value="questionnaire-extensions-Questionnaire-deReference"/> <url value="http://hl7.org/fhir/SearchParameter/questionnaire-extensions-Questionnaire-deReference"/> <name value="deReference"/> <status value="draft"/> <experimental value="true"/> <code value="deReference"/> <type value="token"/> <description value="A data element referenced by one of the questions in the questionnaire"/> <xpath value="f:Questionnaire/f:item/f:extension[@url='http://hl7.org/fhir/StructureDefinition/questionnaire-deRef erence'] | f:Questionnaire/f:item/f:item/f:extension[@url='http://hl7.org/fhir/StructureDefinition/qu estionnaire-deReference'] | /f:#deReference"/> <xpathUsage value="normal"/> </SearchParameter>
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.