v2+ Vocabulary
0.3.0 - Working Draft to present the concept ideas (FO)

v2+ Vocabulary - Local Development build (v0.3.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

CodeSystem: Relational Operator (2.3 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/relationalOperatorV100 Version: 1.0.0
Active as of 2025-08-05 Computable Name: RelationalOperatorV100
Other Identifiers: OID:2.16.840.1.113883.18.114

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HL7-defined code system of concepts used to define the relationship between HL7 segment field names identified in a query construct. Used in HL7 Version 2.x messaging in the QSC segment.

This Code system is referenced in the content logical definition of the following value sets:

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
version introduced versionIntroduced http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced string version when was this code introduced
version deprecated versionDeprecated http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated string version when was this code deprecated
status status http://hl7.org/fhir/concept-properties#status code A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment, to suppress IG-publisher warning, to be replaced with standard later comment http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment string A string that provides additional detail pertinent to the use or understanding of the concept
usage usage http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage string usage notes for this code
modified modified http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified dateTime date of last modification

Concepts

This case-sensitive code system http://terminology.hl7.org/v2plusvocab/CodeSystem/relationalOperatorV100 defines the following codes:

CodeDisplayDefinitionversion introduced
CT Contains Contains 2.3
EQ Equal Equal 2.3
GE Greater than or equal Greater than or equal 2.3
GN Generic Generic 2.3
GT Greater than Greater than 2.3
LE Less than or equal Less than or equal 2.3
LT Less than Less than 2.3
NE Not Equal Not Equal 2.3