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. 2023 Dec 22;11:e49301. doi: 10.2196/49301

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©Julian D Schwab, Silke D Werle, Rolf Hühne, Hannah Spohn, Udo X Kaisers, Hans A Kestler. Originally published in JMIR Medical Informatics (https://medinform.jmir.org), 22.12.2023.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Medical Informatics, is properly cited. The complete bibliographic information, a link to the original publication on https://medinform.jmir.org/, as well as this copyright and license information must be included.

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Exemplary composition of SNOMED CT components for nausea. SNOMED CT content consists of concepts, descriptions, and relationships. Each concept is associated with a set of textual descriptions. The descriptions can be grouped into an FSN, which is unique, and several accepted synonyms, allowing users to apply their preferred terms. In addition to the preferred FSN, a synonym can be selected by a language refset. Relationships link concepts within hierarchies. The |Is a| relationship connects concepts within the same hierarchy, whereas the attribute relationship connects relationships in different hierarchies such as finding site, procedure site, or method. SNOMED CT: Systematized Nomenclature of Medicine Clinical Terms.