This is the CodeSystem that contains codes in both AdverseEventCausalityMethod (http://terminology.hl7.org/CodeSystem/adverse-event-causality-method) and AdverseEventCausalityMethod (http://terminology.hl7.org/CodeSystem/adverse-event-causality-method).
Generated Narrative: CodeSystem 9b7a2ee7-3d5f-42a4-ac9a-425ca454cf11-45
This code system http://hl7.org/fhir/comparison/CodeSystem/9b7a2ee7-3d5f-42a4-ac9a-425ca454cf11-45 defines codes, but no codes are represented here