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 0d0d3031-29f7-4913-981d-4e6a20446ed6-486
This code system http://hl7.org/fhir/comparison/CodeSystem/0d0d3031-29f7-4913-981d-4e6a20446ed6-486 defines codes, but no codes are represented here