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 315e1367-3f8c-499a-bde0-f49d698cf03c-726
This code system http://hl7.org/fhir/comparison/CodeSystem/315e1367-3f8c-499a-bde0-f49d698cf03c-726 defines codes, but no codes are represented here