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 c5ecab15-a0f9-4fdf-9d87-bde1e84b2f11-711
This code system http://hl7.org/fhir/comparison/CodeSystem/c5ecab15-a0f9-4fdf-9d87-bde1e84b2f11-711 defines codes, but no codes are represented here