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Yearb Med Inform. 2018 Aug;27(1):129-139. doi: 10.1055/s-0038-1667077. Epub 2018 Aug 29.

Recent Developments in Clinical Terminologies - SNOMED CT, LOINC, and RxNorm.

Author information

1
Senior Scientist, Lister Hill National Center for Biomedical Communications, U.S. National Library of Medicine, Bethesda, MD, USA.
2
Associate Professor, Department of Medical Informatics, Academic Medical Center - University of Amsterdam, Amsterdam Public Health research institute, Amsterdam, Netherlands.
3
Director, LOINC and Health Data Standards Regenstrief Center for Biomedical Informatics; Regenstrief-McDonald Scholar in Data Standards Indiana University School of Medicine; Research Scientist Regenstrief Institute, Inc., Indianapolis, USA.

Abstract

OBJECTIVE:

 To discuss recent developments in clinical terminologies. SNOMED CT (Systematized Nomenclature of Medicine Clinical Terms) is the world's largest clinical terminology, developed by an international consortium. LOINC (Logical Observation Identifiers, Names, and Codes) is an international terminology widely used for clinical and laboratory observations. RxNorm is the standard drug terminology in the U.S.

METHODS AND RESULTS:

 We present a brief review of the history, current state, and future development of SNOMED CT, LOINC and RxNorm. We also analyze their similarities and differences, and outline areas for greater interoperability among them.

CONCLUSIONS:

 With different starting points, representation formalisms, funding sources, and evolutionary paths, SNOMED CT, LOINC, and RxNorm have evolved over the past few decades into three major clinical terminologies supporting key use cases in clinical practice. Despite their differences, partnerships have been created among their development teams to facilitate interoperability and minimize duplication of effort.

PMID:
30157516
DOI:
10.1055/s-0038-1667077
[Indexed for MEDLINE]
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