This is the CodeSystem that contains codes in both AdverseEventSeriousness (http://terminology.hl7.org/CodeSystem/adverse-event-seriousness) and AdverseEventSeriousness (http://terminology.hl7.org/CodeSystem/adverse-event-seriousness).
Generated Narrative: CodeSystem 8d5e97a5-7160-4288-b89a-aac9d8740552-573
This code system http://hl7.org/fhir/comparison/CodeSystem/8d5e97a5-7160-4288-b89a-aac9d8740552-573 defines codes, but no codes are represented here