Collaborative Stage

Collaborative Stage for TNM 7 - Revised 06/28/2011 [ Schema ]

CS Lymph Nodes

Note 1: Peripheral nodes are located in the upper and lower limbs, including axillary and inguinal nodes. Central lymph nodes are located in the trunk, including mediastinal, para-aortic, and mesenteric nodes.
Note 2: Involvement of peripheral and central lymph nodes, distant nodes for ocular adnexal lymphomas, is coded in CS Lymph Nodes and not in CS Mets at DX.
Note 3: When coding Regional Nodes Positive and Regional Nodes Examined, only include regional nodes. Do not include distant nodes coded in CS Lymph Nodes. If the only information available is for Lymph Nodes, NOS, coded as 800 in CS Lymph Nodes, assume these are regional nodes for coding Regional Nodes Positive and Regional Nodes Examined.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	No regional lymph node involvement	N0	*	NONE	NONE
100	Ipsilateral regional lymph nodes: Cervical, NOS: Submandibular (submaxillary) Parotid, NOS: Preauricular Regional lymph node(s), NOS Stated as N1 with no other information on regional lymph nodes	N1	*	RE	RE
300	Contralateral or bilateral regional nodes listed in code 100 Stated as N2 with no other information on regional lymph nodes	N2	*	RE	RE
600	Peripheral lymph nodes not draining ocular adnexal region Stated as N3 with no other information on regional lymph nodes	N3	*	RE	RE
700	Central lymph nodes Stated as N4 with no other information on regional lymph nodes	N4	*	RE	RE
800	Lymph nodes, NOS	N1	*	RE	RE
888	OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable	ERROR	ERROR	ERROR	ERROR
988	OBSOLETE DATA RETAINED V0200 New schema for site, histology V0200 Not applicable for this schema	ERROR	*	U	U
999	Unknown; regional and distant lymph nodes not stated Regional and distant lymph nodes cannot be assessed Not documented in patient record	NX	*	U	U

*Stage grouping for AJCC 6 staging of ocular adnexal lymphoma is derived from a combination of CS Extension, CS Lymph Nodes, and CS Mets at DX codes as shown in the AJCC TNM 6 Stage table. A or B classification is appended to Stage I-IV based on coding of CS Site-Specific Factor 2, Systemic Symptoms at Diagnosis.