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 974a4042-5ef9-4d87-bcaa-92de671fa085-48
This code system http://hl7.org/fhir/comparison/CodeSystem/974a4042-5ef9-4d87-bcaa-92de671fa085-48 defines codes, but no codes are represented here