Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/25/2010 [ Schema ]

CS Site-Specific Factor 1
OBSOLETE (Clinical Assessment of Regional Lymph Nodes)

Note 1: This CS Site-Specific Factor is obsolete beginning with CS Version 2 (codes and notes). Old data are retained, but new cases are not coded with this Factor. Use code 988 for this field.
Note 2: In the rare instance that the number of clinically positive nodes is stated but a clinical N category is not stated, code 1-2 nodes as 100 (N1), 3-6 nodes as 200 (N2), and 7 or more nodes as 300 (N3).

Code	Description
000	OBSOLETE DATA RETAINED V0200 Nodes not clinically evident
100	OBSOLETE DATA RETAINED V0200 Clinically N1
200	OBSOLETE DATA RETAINED V0200 Clinically N2
300	OBSOLETE DATA RETAINED V0200 Clinically N3
400	OBSOLETE DATA RETAINED V0200 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 schema
999	OBSOLETE DATA RETAINED V0200 Unknown if nodes are clinically evident