{"resourceType":"SearchParameter","id":"MedicationAdministration-effective-time","extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"trial-use"}],"url":"http://hl7.org/fhir/SearchParameter/MedicationAdministration-effective-time","version":"4.0.1","name":"effective-time","status":"draft","experimental":false,"date":"2021-01-17T07:06:13+11:00","publisher":"Health Level Seven International (Pharmacy)","contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"}]},{"telecom":[{"system":"url","value":"http://www.hl7.org/Special/committees/medication/index.cfm"}]}],"description":"Date administration happened (or did not happen)","code":"effective-time","base":["MedicationAdministration"],"type":"date","expression":"MedicationAdministration.effective","xpath":"f:MedicationAdministration/f:effectiveDateTime | f:MedicationAdministration/f:effectivePeriod","xpathUsage":"normal","comparator":["eq","ne","gt","ge","lt","le","sa","eb","ap"]}