{"resourceType":"CodeSystem","id":"med-admin-perform-function","meta":{"lastUpdated":"2021-01-17T07:06:13.533+11:00","profile":["http://hl7.org/fhir/StructureDefinition/shareablecodesystem"]},"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"phx"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"draft"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":1}],"url":"http://terminology.hl7.org/CodeSystem/med-admin-perform-function","identifier":[{"system":"urn:ietf:rfc:3986","value":"urn:oid:2.16.840.1.113883.4.642.4.1112"}],"version":"4.0.1","name":"MedicationAdministration Performer Function Codes","title":"Medication administration  performer  function  codes","status":"draft","experimental":false,"publisher":"FHIR Project team","contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"}]}],"description":"MedicationAdministration Performer Function Codes","caseSensitive":true,"valueSet":"http://hl7.org/fhir/ValueSet/med-admin-perform-function","content":"complete","concept":[{"code":"performer","display":"Performer","definition":"A person, non-person living subject, organization or device that who actually and principally carries out the action"},{"code":"verifier","display":"Verifier","definition":"A person who verifies the correctness and appropriateness of the service (plan, order, event, etc.) and hence takes on accountability."},{"code":"witness","display":"Witness","definition":"A person witnessing the action happening without doing anything. A witness is not necessarily aware, much less approves of anything stated in the service event. Example for a witness is students watching an operation or an advanced directive witness."}]}