Release 4 Value Set

Clinical Decision Support Work Group Maturity Level: 0Trial Use Use Context: Any

This is a value set defined by the FHIR project.


Defining URL:

The subcomponent classification of quality of evidence rating systems.

Committee:Clinical Decision Support Work Group
OID:2.16.840.1.113883.4.642.3.1359 (for OID based terminology systems)
Source ResourceXML / JSON

This value set is used in the following places:

This value set includes codes from the following code systems:


This expansion generated 21 Jan 2021

This value set contains 8 concepts

Expansion based on version 4.0.1

All codes from system

RiskOfBiasRisk of biasmethodologic concerns reducing internal validity.
InconsistencyInconsistencyconcerns that findings are not similar enough to support certainty.
IndirectnessIndirectnessconcerns reducing external validity.
ImprecisionImprecisionHigh quality evidence.
PublicationBiasPublication biaslikelihood that what is published misrepresents what is available to publish.
DoseResponseGradientDose response gradienthigher certainty due to dose response relationship.
PlausibleConfoundingPlausible confoundinghigher certainty due to risk of bias in opposite direction.
LargeEffectLarge effecthigher certainty due to large effect size.


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