Release 5 Preview #2 Code System

Clinical Decision Support Work Group Maturity Level: 1Trial Use Use Context: Any

This is a code system defined by the FHIR project.


Defining URL:

Possible group measure aggregates (E.g. Mean, Median).

Committee:Clinical Decision Support Work Group
OID:2.16.840.1.113883.4.642.1.1346 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

  • ValueSet: GroupMeasure (Possible group measure aggregates (E.g. Mean, Median).)

This code system defines the following codes:

mean MeanAggregated using Mean of participant values.
median MedianAggregated using Median of participant values.
mean-of-mean Mean of Study MeansAggregated using Mean of study mean values.
mean-of-median Mean of Study MedinsAggregated using Mean of study median values.
median-of-mean Median of Study MeansAggregated using Median of study mean values.
median-of-median Median of Study MediansAggregated using Median of study median values.


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