This is the CodeSystem that contains codes in both ResearchSubjectMilestone (http://terminology.hl7.org/CodeSystem/research-subject-milestone) and ResearchSubjectMilestone (http://terminology.hl7.org/CodeSystem/research-subject-milestone).
Generated Narrative: CodeSystem 8b15b299-cfe0-4522-854e-5be847352001-726
This code system http://hl7.org/fhir/comparison/CodeSystem/8b15b299-cfe0-4522-854e-5be847352001-726 defines codes, but no codes are represented here