Search Parameter effective
<SearchParameter xmlns="http://hl7.org/fhir"> <id value="codesystem-extensions-CodeSystem-effective"/> <url value="http://hl7.org/fhir/SearchParameter/codesystem-extensions-CodeSystem-effective"/> <name value="effective"/> <status value="draft"/> <experimental value="true"/> <code value="effective"/> <type value="date"/> <description value="Optional Extensions Element"/> <xpath value="f:CodeSystem/f:extension[@url='http://hl7.org/fhir/StructureDefinition/codesystem-effectiveDate'] | /f:#effectiveDate"/> <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.