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 63461cdc-5d1b-4619-930e-2c74c910a25f-48
This code system http://hl7.org/fhir/comparison/CodeSystem/63461cdc-5d1b-4619-930e-2c74c910a25f-48 defines codes, but no codes are represented here