{
  "description": "How to search on procedure code extension in FHIR Immunization",
  "_filename": "procedure-code.json",
  "package_name": "uk.nhsdigital.r4.test",
  "date": null,
  "expression": "Immunization.extension('https://fhir.nhs.uk/StructureDefinition/Extension-procedure-code').value",
  "publisher": null,
  "name": "ProcedureCode",
  "type": "token",
  "experimental": null,
  "resourceType": "SearchParameter",
  "title": null,
  "package_version": "2.18.15-prerelease",
  "status": "active",
  "id": "07907b43-65f2-44f9-9c77-be7b0b1eb232",
  "kind": null,
  "url": "https://fhir.nhs.uk/SearchParameter/procedure-code",
  "code": "group",
  "base": [ "Immunization" ],
  "version": null
}