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 6bc4d2ed-5dce-4b44-b5ed-4678efc979ab-750
This code system http://hl7.org/fhir/comparison/CodeSystem/6bc4d2ed-5dce-4b44-b5ed-4678efc979ab-750 defines codes, but no codes are represented here