Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/22/2010 [ Schema ]

CS Site-Specific Factor 2
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Note 1: This CS Site-Specific Factor is obsolete beginning with CS Version 2 (codes and notes).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 1-3 nodes as 100 (N1), and 4 or more nodes as 200 (N2).

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
400	OBSOLETE DATA RETAINED V0200 Clinically positive regional nodes, NOS
888	OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable for this schema
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	OBSOLETE DATA RETAINED V0200 Unknown if nodes are clinically evident