Collaborative Stage

Collaborative Stage for TNM 7 - Revised 08/30/2009 [ Schema ]

Liver

CS Lymph Nodes

Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field Mets at DX.
Note 2: Inferior phrenic nodes were reclassified from distant to regional nodes in AJCC 7th ed. They are now coded in CS Lymph Nodes.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	None; no regional lymph node involvement	N0	N0	NONE	NONE
100	Regional lymph nodes: Hepatic NOS: Hepatic artery Hepatic pedicle Inferior vena cava Porta hepatis (hilar) [in hilus of liver] Hepatoduodenal ligament Periportal Portal vein Regional lymph node(s), NOS	N1	N1	RN	RN
200	Inferior phrenic nodes	N1	*	D	D
300	(100) + (200)	N1	*	D	D
800	Lymph nodes, NOS Stated as N1 [NOS]	N1	N1	RN	RN
999	Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record	NX	NX	U	U

* For codes 200 and 300 the N and M categories for AJCC 6th Edition are assigned based on the coding of this field and CS Mets at DX as shown in the Lymph Nodes Mets at DX Table AJCC 6.