Collaborative Stage

Collaborative Stage for TNM 7 - Revised 08/24/2010 [ Schema ]

CS Lymph Nodes

Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in CS Mets at DX.
Note 2: This field includes all lymph nodes defined as Levels I-VI and Other by AJCC. The complete definitions are provided in the General Rules, Section 2 for head and neck cancers.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	No regional lymph node involvement	NA	NA	NONE	NONE
100	Regional lymph nodes Cervical for carotid body and parathyroid only Mediastinal for aortic body and thymus only	NA	NA	RN	RN
800	Lymph nodes, NOS	NA	NA	RN	RN
999	Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not documented in patient record	NA	NA	U	U