This document specifies a categorial structure within the subject field of traditional Chinese medicine (TCM) clinical practice. It describes the upper-level categories of TCM clinical terms and the nomenclature of the hierarchical categories. It is applicable only to clinical terminological systems in TCM disciplines, not to a comprehensive categorial structure of TCM, the conceptual definition of the hierarchy categories, and terms for individual TCM concepts.

The following are considered outside the scope of this document: