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 d53e329c-e887-45ef-9643-5105cec80626-486
This code system http://hl7.org/fhir/comparison/CodeSystem/d53e329c-e887-45ef-9643-5105cec80626-486 defines codes, but no codes are represented here