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 c51c7c25-f5f4-429e-b1c8-849e59890f2d-1524
This code system http://hl7.org/fhir/comparison/CodeSystem/c51c7c25-f5f4-429e-b1c8-849e59890f2d-1524 defines codes, but no codes are represented here