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 307062cf-3328-47a5-98c4-9e03a40cc5cb-48
This code system http://hl7.org/fhir/comparison/CodeSystem/307062cf-3328-47a5-98c4-9e03a40cc5cb-48 defines codes, but no codes are represented here