Collaborative Stage

Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field Mets at DX.
Note 2: If the clinician says "adnexa palpated" but doesn't mention lymph nodes, assume lymph nodes are not involved.
Note 3: If either exploratory/definitive surgery is done with no mention of lymph nodes, assume nodes are negative.
Note 4: Regional nodes include bilateral and contralateral involvement of named nodes.
Note 5: Positive presacral and lateral sacral (laterosacral) lymph nodes are coded under CS Mets at DX.
Note 6: Determination of the N category is based on this field and CS Mets at DX.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	No regional lymph node involvement	N0	N0	NONE	NONE
100	Regional lymph node(s): Iliac, NOS: Common External Internal (hypogastric) Obturator Pelvic, NOS	N1	N1	RN	RN
120	OBSOLETE DATA RETAINED V0200 Regional lymph node(s): Lateral sacral (laterosacral) Presacral	ERROR	N1	D	RN
200	Regional lymph node(s): Aortic, NOS: Lateral (lumbar) Para-aortic Periaortic Retroperitoneal, NOS	N1	N1	RN	RN
220	OBSOLETE DATA RETAINED V0200 20 + 12	ERROR	N1	D	RN
300	Regional lymph node(s): Inguinal	N1	N1	D	RN
500	Regional lymph node(s), NOS	N1	N1	RN	RN
800	Lymph nodes, 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

CS Lymph Nodes