Release 5

This page is part of the FHIR Specification (v5.0.0: R5 - STU). This is the current published version. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B

4.3.2.399 CodeSystem http://hl7.org/fhir/variable-handling

Clinical Decision Support icon Work Group Maturity Level: 5Trial Use Use Context: Country: World
Official URL: http://hl7.org/fhir/variable-handling Version: 5.0.0
active as of 2021-01-05 Computable Name: EvidenceVariableHandling
Flags: CaseSensitive, Complete. All codes ValueSet: Evidence Variable Handling OID: 2.16.840.1.113883.4.642.4.1956

This Code system is used in the following value sets:

  • ValueSet: Evidence Variable Handling (The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).)

4.3.2.399.1 Definition

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

4.3.2.399.2 Content

This code system http://hl7.org/fhir/variable-handling defines the following codes:

CodeDisplayDefinitionCopy
continuous continuous variableA continuous variable is one for which, within the limits the variable ranges, any value is possible (from STATO http://purl.obolibrary.org/obo/STATO_0000251).btn btn
dichotomous dichotomous variableA dichotomous variable is a categorical variable which is defined to have only 2 categories or possible values (from STATO http://purl.obolibrary.org/obo/STATO_0000090).btn btn
ordinal ordinal variableAn ordinal variable is a categorical variable where the discrete possible values are ordered or correspond to an implicit ranking (from STATO http://purl.obolibrary.org/obo/STATO_0000228).btn btn
polychotomous polychotomous variableA polychotomous variable is a categorical variable which is defined to have minimally 2 categories or possible values. (from STATO http://purl.obolibrary.org/obo/STATO_0000087). Suggestion to limit code use to situations when neither dichotomous nor ordinal variables apply.btn btn

 

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