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Recent Developments in Clinical Terminologies - SNOMED CT, LOINC, and RxNorm
Oliver Bodenreider1, Ronald Cornet2, Daniel J Vreeman3
1Senior Scientist, Lister Hill National Center for Biomedical Communications, U.S. National Library of Medicine, Bethesda, MD, USA.
Yearbook of Medical Informatics
|August 30, 2018
Summary
This study reviews Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT), Logical Observation Identifiers, Names, and Codes (LOINC), and RxNorm. These clinical terminologies are evolving towards greater interoperability despite their differences.
Area of Science:
- Health Informatics
- Medical Terminology Standards
- Clinical Data Interoperability
Background:
- Clinical terminologies are essential for standardizing health information.
- Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT), Logical Observation Identifiers, Names, and Codes (LOINC), and RxNorm are major terminologies in healthcare.
- Understanding their development is crucial for advancing health data exchange.
Observation:
- SNOMED CT is the largest global clinical terminology.
- LOINC is widely used for clinical and laboratory observations.
- RxNorm is the standard drug terminology in the U.S.
Findings:
- SNOMED CT, LOINC, and RxNorm have distinct origins, formalisms, and funding.
- These terminologies have evolved significantly over decades to support key clinical use cases.
- Analysis reveals similarities, differences, and opportunities for enhanced interoperability.
Implications:
- Collaborative partnerships are forming between SNOMED CT, LOINC, and RxNorm development teams.
- These collaborations aim to improve interoperability and reduce redundant efforts.
- Advancements in these terminologies will facilitate seamless clinical data exchange and utilization.
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