HL7 Terminology (THO)
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HL7 Terminology (THO), published by HL7 International - Vocabulary Work Group. This is not an authorized publication; it is the continuous build for version 5.3.0). This version is based on the current content of https://github.com/HL7/UTG/ and changes regularly. See the Directory of published versions

CodeSystem: RelationalOperator

Official URL: http://terminology.hl7.org/CodeSystem/v3-RelationalOperator Version: 2.1.0
Active as of 2019-03-20 Responsible: Health Level 7 Computable Name: RelationalOperator
Other Identifiers: id: urn:oid:2.16.840.1.113883.5.105

Identifies common relational operators used in selection criteria.

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


This code system defines the following properties for its concepts

SpecializesCodingThe child code is a more narrow version of the concept represented by the parent code. I.e. Every child concept is also a valid parent concept. Used to allow determination of subsumption. Must be transitive, irreflexive, antisymmetric.
GeneralizesCodingInverse of Specializes. Only included as a derived relationship.
internalIdhttp://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-idcodeThe internal identifier for the concept in the HL7 Access database repository.
statushttp://hl7.org/fhir/concept-properties#statuscodeDesignation of a concept's state. Normally is not populated unless the state is retired.


This case-sensitive code system http://terminology.hl7.org/CodeSystem/v3-RelationalOperator defines the following codes in a Is-A heirarchy:

CT ContainsSpecified set of things includes value being evaluated.10170active
EQ EqualEqual condition applied to comparisons.10164active
GE Greater than or equalGreater than or equal condition applied to comparisons.10169active
GN GenericA generic comparison selects a record for inclusion in the response if the beginning of the designated element value matches the select string.10171active
GT Greater thanGreater than condition applied to comparisons.10167active
LE Less than or equalLess than or equal condition applied to comparisons.10168active
LT Less thanLess than condition applied to comparisons.10166active
NE Not EqualNot equal condition applied to comparisons.10165active


2022-10-18reviseMarc DuteauTSMGFixing missing metadata; up-349
2022-02-17 00:00:32+1100reviseGrahame GrieveVocabulary WGPopulate Missing caseSensitive property; UP-286
2020-05-06reviseTed KleinVocabulary WGMigrated to the UTG maintenance environment and publishing tooling.