> For the complete documentation index, see [llms.txt](https://docs.snomed.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snomed.org/education/snomed-ct-education-editorial-guide/readme/authoring/general-naming-conventions/descriptions/fully-specified-name/index.md).

# Semantic Tag

<mark style="color:$danger;">**This Editorial Guide is used for Education Purposes Only. It is used in the Authoring Courses and Certifications. It is based on the January 2026 Editorial Guide.**</mark>

A s*emantic tag* is part of a concept's Fully Specified Name description. It is placed in parentheses at the end of an FSN when authoring concepts. It indicates the domain to which a concept belongs; for example: body structure, disorder, or specimen.

The purpose of semantic tags is to disambiguate concepts which have the same commonly used word or phrase.

* For example,
  * Hematoma (morphologic abnormality)
    * Hematoma (disorder)

The following table contains the semantic tags for each domain.

<table><thead><tr><th width="323.2421875">Domain</th><th>Semantic tag</th></tr></thead><tbody><tr><td>Body structure (body structure)</td><td><p>(body structure)</p><p>-(cell)</p><p>-(cell structure)</p><p>-(morphologic abnormality)</p></td></tr><tr><td>Clinical finding (finding)</td><td><p>(finding)</p><p>-(disorder)</p></td></tr><tr><td>Environment or geographical location (environment / location)</td><td><p>(environment)</p><p>(geographic location)</p></td></tr><tr><td>Event (event)</td><td>(event)</td></tr><tr><td>Observable entity (observable entity)</td><td>(observable entity)</td></tr><tr><td>Organism (organism)</td><td>(organism)</td></tr><tr><td>Pharmaceutical / biologic product (product)</td><td><p>(clinical drug)</p><p>(medicinal product)</p><p>(medicinal product form)</p><p>(physical object)</p><p>(product)</p></td></tr><tr><td>Physical force (physical force)</td><td>(physical force)</td></tr><tr><td>Physical object (physical object)</td><td><p>(physical object)</p><p>-(product)</p></td></tr><tr><td>Procedure (procedure)</td><td><p>(procedure)</p><p>-(regime/therapy)</p></td></tr><tr><td>Qualifier value (qualifier value)</td><td><p>(qualifier value)</p><p>-(administration method)</p><p>-(basic dose form)</p><p>-(calculation)</p><p>-(disposition)</p><p>-(dose form)</p><p>-(intended site)</p><p>-(product name)</p><p>-(release characteristic)</p><p>-(role)</p><p>-(state of matter)</p><p>-(transformation)</p><p>-(supplier)</p><p>-(unit of presentation)</p></td></tr><tr><td>Record artifact (record artifact)</td><td>(record artifact)</td></tr><tr><td>Situation with explicit context (situation)</td><td>(situation)</td></tr><tr><td>SNOMED CT Model Component (metadata)</td><td><p>(attribute)</p><p>(core metadata concept)</p><p>(foundation metadata concept)</p><p>(link assertion)</p><p>(linkage concept)</p><p>(namespace concept)</p><p>(OWL metadata concept)</p></td></tr><tr><td>Social context (social concept)</td><td><p>(social concept)</p><p>-(ethnic group)</p><p>-(occupation)</p><p>-(person)</p><p>-(racial group)</p><p>-(religion/philosophy)</p></td></tr><tr><td>Special concept (special concept)</td><td>(navigational concept)</td></tr><tr><td>Specimen (specimen)</td><td>(specimen)</td></tr><tr><td>Staging and scales (staging scales)</td><td><p>(staging scale)</p><p>-(assessment scale)</p><p>-(tumor staging)</p></td></tr><tr><td>Substance (substance)</td><td>(substance)</td></tr></tbody></table>


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