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 ad63b62d-52f3-4c4a-8fee-31e713b8e7dc-750
This code system http://hl7.org/fhir/comparison/CodeSystem/ad63b62d-52f3-4c4a-8fee-31e713b8e7dc-750 defines codes, but no codes are represented here