Collaborative Stage

Collaborative Stage for TNM 7 - Revised 12/31/2009 [ Schema ]

CS Site-Specific Factor 2
Clinical Assessment of Regional Lymph Nodes

Note: In the rare instance that the number of clinically positive nodes is stated but a clinical N category is not stated, code 1-3 nodes as 100 (N1), and 4 or more nodes as 200 (N2).

Code	Description
000	Nodes not clinically evident
100	Clinically N1
200	Clinically N2
400	Clinically positive regional nodes, NOS
888	OBSOLETE DATA CONVERTED V0200 See code 988: Not applicable for this site
988	Not applicable: Information not collected for this case (May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.)
999	Unknown if nodes are clinically evident