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 42938729-f0f2-4a37-ad47-10b7c7bad89b-48
This code system http://hl7.org/fhir/comparison/CodeSystem/42938729-f0f2-4a37-ad47-10b7c7bad89b-48 defines codes, but no codes are represented here