Logical Observation Identifier Names and Codes

Last uploaded: January 16, 2025

Details

Acronym	LOINC
Visibility	Public
Description	Logical Observation Identifier Names and Codes (LOINC) provides formal names and standardized codes for laboratory and other clinical observations. The data cover laboratory terminology, vital signs, hemodynamics intake/output, EKG, obstetric ultrasound, cardiac echo, urologic, imaging, gastroendoscopic procedures, pulmonary ventilator management, and selected survey instruments.
Status	Production
Format	UMLS
Contact	LOINC Support, loinc@regenstrief.org
Categories	Health
Groups	Cancer Biomedical Informatics Grid, Unified Medical Language System
License Information	This ontology is made available via the UMLS. Users of all UMLS ontologies must abide by the terms of the UMLS license.

Version	Released	Uploaded	Downloads
LNC278 (Parsed, Indexed, Metrics, Annotator, Error Diff)	11/04/2024	01/16/2025	RDF/TTL \| CSV
2024AA (Archived)	05/06/2024	08/28/2024	RDF/TTL
2023AB (Archived)	11/06/2023	01/31/2024	RDF/TTL
2023AA (Archived)	04/01/2023	08/07/2023	RDF/TTL
2022AB (Archived)	11/07/2022	01/06/2023	RDF/TTL
2022AA (Archived)	05/02/2022	06/10/2022	RDF/TTL
2021AB (Archived)	11/01/2021	11/18/2021	RDF/TTL
2021AA (Archived)	04/03/2021	05/20/2021	RDF/TTL
2020AB (Archived)	11/02/2020	01/06/2021	RDF/TTL
2020AA (Archived)	05/04/2018	09/24/2020	RDF/TTL
2019AB (Archived)	11/04/2019	11/18/2019	RDF/TTL
2019AA (Archived)	05/06/2019	08/27/2019	RDF/TTL
2018AB (Archived)	11/05/2018	04/29/2019	RDF/TTL
2018AA (Archived)	05/07/2018	07/06/2018	RDF/TTL
2017AB (Archived)	11/06/2017	07/06/2018	RDF/TTL
2017AA (Archived)	05/08/2017	04/06/2018	RDF/TTL
2016AB (Archived)	02/06/2017	02/06/2017	RDF/TTL
2016AA (Archived)	09/06/2016	09/06/2016	RDF/TTL
2015AB (Archived)	07/20/2016	07/20/2016	RDF/TTL
2015AA (Archived)	06/09/2015	06/09/2015	RDF/TTL
2014AB (Archived)	01/29/2015	01/29/2015	RDF/TTL
2014AA (Archived)	05/28/2014	05/28/2014	RDF/TTL
2013AB (Archived)	02/18/2014	02/18/2014	RDF/TTL
2013AA (Archived)	01/14/2014	01/14/2014	RDF/TTL
2013AA (Archived)	05/08/2013	09/25/2013	RDF/TTL
232 (Archived)	11/01/2010	11/09/2010	RDF/TTL
229 (Archived)	01/02/2010	08/12/2010	RDF/TTL
226 (Archived)	01/02/2009	07/31/2009	RDF/TTL
more...

No views of LOINC available

Classes	292,064
Individuals	0
Properties	138
Maximum depth	16
Maximum number of children	24,317
Average number of children	4
Classes with a single child	38,590
Classes with more than 25 children	496
Classes with no definition	291,480

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TerminologyLinkingService

Id	http://purl.bioontology.org/ontology/LNC/11913-1 http://purl.bioontology.org/ontology/LNC/11913-1
Preferred Name	Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Nelson 1981
Synonyms	GA from CRL.Nelson81 Gestational age estimated from Crown rump length on US by Nelson 1981 method Gestational age:Time:To identify measures at a point in time:^Fetus:Quantitative:Ultrasound+Estimated from CRL.Nelson 1981
Type	http://www.w3.org/2002/07/owl#Class

altLabel	GA from CRL.Nelson81 Gestational age estimated from Crown rump length on US by Nelson 1981 method Gestational age:Time:To identify measures at a point in time:^Fetus:Quantitative:Ultrasound+Estimated from CRL.Nelson 1981
prefLabel	Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Nelson 1981
LOINC time aspect	Pt
VERSION LAST CHANGED	2.52
notation	11913-1
Has class	http://purl.bioontology.org/ontology/LNC/LP7831-3 http://purl.bioontology.org/ontology/LNC/LP7830-5 http://purl.bioontology.org/ontology/LNC/LP32523-0 http://purl.bioontology.org/ontology/LNC/LP7787-7
Has property	http://purl.bioontology.org/ontology/LNC/LP6879-3
LOR	Observation
COMMON ORDER RANK	0
LOINC property	Time
LOINC system	^Fetus
LCL	OB.US
VERSION FIRST RELEASED	1.0j-a
Has scale	http://purl.bioontology.org/ontology/LNC/LP7753-9
Has component	http://purl.bioontology.org/ontology/LNC/LP28815-6 http://purl.bioontology.org/ontology/LNC/LP19507-0
Has method	http://purl.bioontology.org/ontology/LNC/LP6634-2 http://purl.bioontology.org/ontology/LNC/LP6692-0 http://purl.bioontology.org/ontology/LNC/LP6696-1 http://purl.bioontology.org/ontology/LNC/LP6572-4 http://purl.bioontology.org/ontology/LNC/LP6260-6 http://purl.bioontology.org/ontology/LNC/LP91422-3 See more See less
Has system	http://purl.bioontology.org/ontology/LNC/LP310004-9
LCS	ACTIVE
Related names 2	81; CRL chart; Crown-Rump Length; Echography; Est; estimation; Fetal; from CRL.Nelson81; GA; Gest; Gestation; Gyn; Gynecology; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; predicted; Prenatal; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound
LCT	MIN
LOINC scale type	Qn
subClassOf	http://purl.bioontology.org/ontology/LNC/LP416279-0 http://purl.bioontology.org/ontology/LNC/MTHU000106
Semantic type UMLS property	http://purl.bioontology.org/ontology/STY/T201
Has supersystem	http://purl.bioontology.org/ontology/LNC/LP6982-5
measures	http://purl.bioontology.org/ontology/LNC/MTHU002976
LFO	GESTATIONAL AGE [days] = 51 + 0.6 * (crown-rump length [mm])
LOINC component	Gestational age
Example units	days
LOINC method type	US+Estimated from CRL.Nelson 1981
type	http://www.w3.org/2002/07/owl#Class
COMMON TEST RANK	0
LCN	2
Has time aspect	http://purl.bioontology.org/ontology/LNC/LP6960-1
tui	T201
Loinc number of	http://purl.bioontology.org/ontology/LNC/LG50112-8
cui	C0552030
EXAMPLE UCUM UNITS	d

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