Release 5 Draft Ballot

This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions Value Set

FHIR Infrastructure Work Group Maturity Level: 5Trial Use Use Context: Not yet ready for Production use

This is a value set defined by the FHIR project.


Defining URL:

The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).

Committee:FHIR Infrastructure Work Group
OID:2.16.840.1.113883.4.642.3.0 (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 4 concepts

Expansion based on EvidenceVariableHandling v4.6.0 (CodeSystem)

All codes in this table are from the system

continuouscontinuous variableA continuous variable is one for which, within the limits the variable ranges, any value is possible (from STATO
dichotomousdichotomous variableA dichotomous variable is a categorical variable which is defined to have only 2 categories or possible values (from STATO
ordinalordinal variableAn ordinal variable is a categorical variable where the discrete possible values are ordered or correspond to an implicit ranking (from STATO
polychotomouspolychotomous variableA polychotomous variable is a categorical variable which is defined to have minimally 2 categories or possible values. (from STATO Suggestion to limit code use to situations when neither dichotomous nor ordinal variables apply.


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