Union of http://terminology.hl7.org/CodeSystem/research-subject-milestone and http://terminology.hl7.org/CodeSystem/research-subject-milestone

This is the CodeSystem that contains all the codes in ResearchSubjectMilestone (http://terminology.hl7.org/CodeSystem/research-subject-milestone) and ResearchSubjectMilestone (http://terminology.hl7.org/CodeSystem/research-subject-milestone). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem ad63b62d-52f3-4c4a-8fee-31e713b8e7dc-749

This code system http://hl7.org/fhir/comparison/CodeSystem/ad63b62d-52f3-4c4a-8fee-31e713b8e7dc-749 defines codes, but no codes are represented here

CodeDisplayDefinition
SignedUp Signed upA person has expressed an interest in being in a study but has not yet been through any assessment or consent processes.
Screened ScreenedA potential subject has been screened for suitability.
Randomized RandomizedA subject has been allocated to an arm of the study.