A type of CLINICAL CLASSIFICATION.

A classification of the extent of the spread of a cancer at the time of diagnosis using the classification system published by the Union Internationale Contre Cancer (UICC). The acronym TNM relates to the three categories for which codes are recorded, the categories being Tumour, Node and Metastasis. Each category is assigned a code, together with a factor identifying the level of certainty as to the accuracy of the code.

TNM staging can occur at different places in the patient's care pathway, e.g. pre-treatment or pathological.

References:
National Cancer Dataset Version 1.3_ISB October 2002 

This class is also known by these names:

Context	Alias
plural	CANCER TNM STAGINGS