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 fd1d5ab1-5dce-4efa-83f2-fbdd1f055dd2-750
This code system http://hl7.org/fhir/comparison/CodeSystem/fd1d5ab1-5dce-4efa-83f2-fbdd1f055dd2-750 defines codes, but no codes are represented here