Collaborative Stage

Collaborative Stage for TNM 7 - Revised 11/22/2009 [ Schema ]

CS Site-Specific Factor 5
Size of Metastasis in Lymph Nodes

Note 1: If the ONLY information on the size of the metastatic lymph node mass is the physician's assignment of the N category, assign code 010 for N1, 020 for N2, or 030 for N3.
Note 2: If extranodal extension is not described on the pathology report or pathologic assessment of regional lymph nodes is not performed, assume extranodal extension is not present.
Note 3: Do not code the size of any node coded in CS Mets at DX.

Code	Description
000	No lymph node metastasis
001	OBSOLETE DATA CONVERTED V0200 See code 010 Lymph node metastasis mass 2 cm or less in greatest dimension AND no extranodal extension of tumor
002	OBSOLETE DATA CONVERTED V0200 See code 020 Lymph node metastasis mass more than 2 cm but not more than 5 cm in greatest dimension Extranodal extension of tumor
003	OBSOLETE DATA CONVERTED V0200 See code 030 Lymph node metastasis mass more than 5 cm in greatest dimension
010	Lymph node metastasis mass 2 cm or less in greatest dimension AND no pathologic extranodal extension of tumor (see Note 2) Stated as N1 with no other information on regional lymph nodes
020	Lymph node metastasis mass more than 2 cm but not more than 5 cm in greatest dimension OR pathologic extranodal extension of tumor Stated as N2 with no other information on regional lymph nodes
030	Lymph node metastasis mass more than 5 cm in greatest dimension Stated as N3 with no other information on regional lymph nodes
998	Regional lymph nodes involved, size of lymph node mass not stated
999	Unknown if regional nodes involved Not documented in patient record