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 d1c8b6ec-a80e-4fac-a75a-4c2360d0fb6d-1002
This code system http://hl7.org/fhir/comparison/CodeSystem/d1c8b6ec-a80e-4fac-a75a-4c2360d0fb6d-1002 defines codes, but no codes are represented here