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See the Directory of published versions Value Set

Clinical Decision Support Work Group Maturity Level: 1Trial Use Use Context: Not yet ready for Production use

This is a value set defined by the FHIR project.


Defining URL:

The type of study the evidence was derived from.

Committee:Clinical Decision Support Work Group
OID:2.16.840.1.113883.4.642.3.1349 (for OID based terminology systems)
Source ResourceXML / JSON

This value set is used in the following places:


This expansion generated 23 Jun 2022

This value set contains 7 concepts

Expansion based on StudyType v4.6.0 (CodeSystem)

All codes in this table are from the system

RCTrandomized trialrandomized controlled trial.
CCTcontrolled trial (non-randomized)controlled (but not randomized) trial.
cohortcomparative cohort studyobservational study comparing cohorts.
case-controlcase-control studycase-control study.
seriesuncontrolled cohort or case seriesuncontrolled cohort or case series.
case-reportcase reporta single case report.
mixedmixed methodsa combination of 1 or more types of studies.


See the full registry of value sets defined as part of FHIR.

Explanation of the columns that may appear on this page:

LvlA 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
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe 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
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code