For the complete documentation index, see llms.txt. This page is also available as Markdown.

Preferred Term

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.

A preferred term (PT) is the description that is deemed to be the most clinically appropriate way of expressing a concept in a clinical record. It represents a common word or phrase used by clinicians to name a concept in clinical practice or in the literature. It is the synonym that is preferred in a language or dialect.

The use of a description can vary between different languages, dialects and contexts. A description may be preferred in some dialects, acceptable in others, and may not be used in some dialects. A Language Reference Set is used to specify the descriptions that are preferred or acceptable in each language or dialect.

A concept may have two descriptions marked as PT, one for each language.

For example, 32849002 | Esophageal structure (body structure)| has

  • PT: Esophageal structure (US)

  • PT: Oesophageal structure (GB)

A PT for one concept may also be a synonym for another concept.

For example,

  • 84162001 | Cold sensation quality (qualifier value)| has a preferred term of cold

  • 82272006 | Common cold (disorder)| also has a synonym of cold

In both concepts, cold represents a common clinical phrase used to capture the meaning of the concept.

The PT is indicated by the acceptabilityId field, for a particular language or dialect.

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