This page is part of the FHIR Specification v6.0.0-ballot3: Release 6 Ballot (3rd Draft) (see Ballot Notes). The current version is 5.0.0.  For a full list of available versions, see the Directory of published versions 
| Biomedical Research and Regulation  Work Group | Maturity Level: 1 | Draft | Use Context: Country: World | 
| Official URL: http://hl7.org/fhir/ValueSet/research-subject-state | Version: 6.0.0-ballot3 | |||
| draft as of 2020-12-28 | Computable Name: ResearchSubjectState | |||
| Flags: Immutable | OID: 2.16.840.1.113883.4.642.3.3131 | |||
This value set is used in the following places:
Indicates the progression of a study subject through a study.
Generated Narrative: ValueSet research-subject-state
Last updated: 2025-04-01T12:16:37.966+11:00
Profile: Shareable ValueSet
http://terminology.hl7.org/CodeSystem/research-subject-state 
This expansion generated 01 Apr 2025
ValueSet
Expansion performed internally based on codesystem ResearchSubjectState v1.0.1 (CodeSystem) 
This value set contains 13 concepts
| Code | System | Display | Definition | 
| candidate  | http://terminology.hl7.org/CodeSystem/research-subject-state | Candidate | An identified person that can be considered for inclusion in a study. | 
| eligible  | http://terminology.hl7.org/CodeSystem/research-subject-state | Eligible | A person that has met the eligibility criteria for inclusion in a study. | 
| follow-up  | http://terminology.hl7.org/CodeSystem/research-subject-state | Follow-up | A person is no longer receiving study intervention and/or being evaluated with tests and procedures according to the protocol, but they are being monitored on a protocol-prescribed schedule. | 
| ineligible  | http://terminology.hl7.org/CodeSystem/research-subject-state | Ineligible | A person who did not meet one or more criteria required for participation in a study is considered to have failed screening or is ineligible for the study. | 
| not-registered  | http://terminology.hl7.org/CodeSystem/research-subject-state | Not Registered | A person for whom registration was not completed. | 
| off-study  | http://terminology.hl7.org/CodeSystem/research-subject-state | Off-study | A person that has ended their participation on a study either because their treatment/observation is complete or through not responding, withdrawal, non-compliance and/or adverse event. | 
| on-study  | http://terminology.hl7.org/CodeSystem/research-subject-state | On-study | A person that is enrolled or registered on a study. | 
| on-study-intervention  | http://terminology.hl7.org/CodeSystem/research-subject-state | On-study-intervention | The person is receiving the treatment or participating in an activity (e.g. yoga, diet, etc.) that the study is evaluating. | 
| on-study-observation  | http://terminology.hl7.org/CodeSystem/research-subject-state | On-study-observation | The subject is being evaluated via tests and assessments according to the study calendar, but is not receiving any intervention. Note that this state is study-dependent and might not exist in all studies. A synonym for this is "short-term follow-up". | 
| pending-on-study  | http://terminology.hl7.org/CodeSystem/research-subject-state | Pending on-study | A person is pre-registered for a study. | 
| potential-candidate  | http://terminology.hl7.org/CodeSystem/research-subject-state | Potential Candidate | A person that is potentially eligible for participation in the study. | 
| screening  | http://terminology.hl7.org/CodeSystem/research-subject-state | Screening | A person who is being evaluated for eligibility for a study. | 
| withdrawn  | http://terminology.hl7.org/CodeSystem/research-subject-state | Withdrawn | The person has withdrawn their participation in the study before registration. | 
See the full registry of value sets defined as part of FHIR.
Explanation of the columns that may appear on this page:
| Lvl | A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information | 
| Source | The source of the definition of the code (when the value set draws in codes defined elsewhere) | 
| Code | The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract') | 
| Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application | 
| Definition | An explanation of the meaning of the concept | 
| Comments | Additional notes about how to use the code |