The UICC (Union for International Cancer Control) edition number used for Tumour, Node and Metastasis (TNM) staging for cancer diagnosis.

• Tumour (T) describes the size of the Tumour and whether it has invaded nearby TISSUE
• Node (N) describes regional lymph nodes that are involved
• Metastasis (M) describes distant metastasis (spread of cancer from one body part to another).

This attribute is also known by these names:

Context	Alias
plural	TNM EDITION NUMBERS
fullname	TUMOUR, NODE AND METASTASIS EDITION NUMBER