This is the CodeSystem that contains codes in both FamilyHistoryAbsentReason (http://terminology.hl7.org/CodeSystem/history-absent-reason) and FamilyHistoryAbsentReason (http://terminology.hl7.org/CodeSystem/history-absent-reason).
Generated Narrative: CodeSystem 3b601e7f-3af7-485d-808e-d0591c910aa6-486
This code system http://hl7.org/fhir/comparison/CodeSystem/3b601e7f-3af7-485d-808e-d0591c910aa6-486 defines codes, but no codes are represented here