Semantic Tag

Semantic tags are part of FSN descriptions. They are placed in parentheses at the end of FSNs when authoring concepts. They indicate 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.

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