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Healthc Inform Res > Volume 11(3); 2005 > Article
Journal of Korean Society of Medical Informatics 2005;11(3):265-272.
DOI: https://doi.org/10.4258/jksmi.2005.11.3.265    Published online September 30, 2005.
The Expressive Power of SNOMED-CT Compared with the Discharge Summaries
Seung hee Kim, Seung Bin Han, Jinwook Choi
Department of Biomedical Engineering, College of Medicine, Seoul National Univ., Korea.

OBJECTIVE: The standard vocabularies need to cover a diverse and enriched field of medical content, thereby facilitating semantic information retrieval, clinical decision support and efficient care delivery. SNOMED-CT(Systematized Nomenclature of Human and Veterinary Medicine-Clinical Term) is a comprehensive and precise clinical reference terminology that provides unsurpassed clinical content and expressivity for clinical documentation and reporting. To investigate whether the SNOMED-CT can serve this function in Seoul National University Hospital(SNUH) environment, we evaluated the coverage of SNOMED-CT as compared with clinical terms in the discharge summary at SNUH.

METHODS: We tested for discordance of clinical terms between SNUH discharge summary and those from SNOMED-CT. We extracted 9,554 concepts from 1,000 discharge summaries. From these concepts, we obtained 3,545 unique concepts which are normalized to map with SNOMED-CT. These normalized terms are mapped to concepts of SNOMED-CT with semi-automatic method.

RESULTS: We found a degree of concordance between SNOMED-CT and the clinical terms used in the discharge summary. Approximately, 89% of medical terms in the discharge summary are matched and 11% of the concepts are not mapped to those of SNOMED-CT.

CONCLUSION: Through this study, we confirmed that SNOMED-CT is appropriate reference terminology in SNUH environment.

Key Words: SNOMED-CT, Concept, Concordance
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