HL7 Terminology (THO)
5.2.0 - Publication International flag

This page is part of the HL7 Terminology (v5.2.0: Release) based on FHIR R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

NamingSystem:

Official URL: http://terminology.hl7.org/NamingSystem/v3-loinc Version: 3.1.0
Active as of 2022-12-15 Responsible: LOINC and Health Data Standards, Regenstrief Institute, Inc. Computable Name: LOINC

LOINC provides a set of universal names and ID codes for identifying laboratory and clinical test results.1,2 LOINC facilitates the exchange and pooling of results, such as blood hemoglobin, serum potassium, or vital signs, for clinical care, outcomes management, and research. LOINC’s universal identifiers (names and codes) can be used in the context of order and observation exchanges between information systems that use syntax standards such as HL73, CEN TC251, ISO TC215, ASTM4, and DICOM. Specifically, the identifier can be used as the coded value for an observation in any other standard that uses the observation/observation value paradigm, whether messages, documents, application programming interface (API), etc. For example, LOINC codes are used widely in the OBX segment Observation Identifier field (OBX-3) of an ORU HL7 (HL7 version 2.x or ASTM 1238-9410) message that may be sent between a Clinical Laboratory Information Management Systems (LIMS) and Electronic Health Record Systems (EHR).5, 6 In this way, LOINC codes provide universal identifiers that allow the exchange of clinical data between heterogeneous computing environments.

Summary

Defining URLhttp://terminology.hl7.org/NamingSystem/v3-loinc
Version3.1.0
NameLOINC
TitleLogical Observation Identifier Names and Codes (LOINC)
Statusactive
Definition

LOINC provides a set of universal names and ID codes for identifying laboratory and clinical test results.1,2 LOINC facilitates the exchange and pooling of results, such as blood hemoglobin, serum potassium, or vital signs, for clinical care, outcomes management, and research. LOINC's universal identifiers (names and codes) can be used in the context of order and observation exchanges between information systems that use syntax standards such as HL73, CEN TC251, ISO TC215, ASTM4, and DICOM. Specifically, the identifier can be used as the coded value for an observation in any other standard that uses the observation/observation value paradigm, whether messages, documents, application programming interface (API), etc. For example, LOINC codes are used widely in the OBX segment Observation Identifier field (OBX-3) of an ORU HL7 (HL7 version 2.x or ASTM 1238-9410) message that may be sent between a Clinical Laboratory Information Management Systems (LIMS) and Electronic Health Record Systems (EHR).5, 6 In this way, LOINC codes provide universal identifiers that allow the exchange of clinical data between heterogeneous computing environments.

PublisherLOINC and Health Data Standards, Regenstrief Institute, Inc.

Identifiers

TypeValuePreferredComment
OID2.16.840.1.113883.6.1true
URIhttp://loinc.orgtrue
Otherhttp://loinc.org/rdf/falseThis uniqueId should have a type of 'iri-stem', which we will change once https://jira.hl7.org/browse/FHIR-39604 has been merged.

History

DateActionCustodianAuthorComment
2023-05-08reviseITSGaurav VaidyaRequest to add IRI stems to LOINC; up-364
2020-11-03reviseVocabulary WGReuben DanielsUpdated metadata to align with HTA and associated UTG external CodeSystem
2020-10-09reviseVocabulary WGReuben DanielsFixed title extension URL to be consistent with latest Publisher