Release 4 Code System

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

This is a code system defined by the FHIR project.


Defining URL:

The subcomponent classification of quality of evidence rating systems.

Committee:Clinical Decision Support Work Group
OID:2.16.840.1.113883.4.642.4.1360 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

The subcomponent classification of quality of evidence rating systems.

This code system defines the following codes:

RiskOfBias Risk of biasmethodologic concerns reducing internal validity.
Inconsistency Inconsistencyconcerns that findings are not similar enough to support certainty.
Indirectness Indirectnessconcerns reducing external validity.
Imprecision ImprecisionHigh quality evidence.
PublicationBias Publication biaslikelihood that what is published misrepresents what is available to publish.
DoseResponseGradient Dose response gradienthigher certainty due to dose response relationship.
PlausibleConfounding Plausible confoundinghigher certainty due to risk of bias in opposite direction.
LargeEffect Large effecthigher certainty due to large effect size.


See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

LevelA few code lists that FHIR defines are hierarchical - each code is assigned a level. 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