Collaborative Stage

Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field CS Mets at DX.
Note 2: Regional nodes include bilateral and contralateral named nodes.
Note 3: AJCC TNM values correspond to the stages accepted by the Federation Internationale de Gynecologie et d'Obstetrique (FIGO), and FIGO stages are included for coding where no more specific information is available in the record. Note that FIGO uses a single stage value which corresponds to different groupings of T, N, and M values. FIGO Stage IIIC is assigned based on tumor extension and/or regional lymph node involvement. Code CS Lymph Nodes based on a physician's statement of FIGO Stage IIIC if it is known that the stage value is assigned because of regional lymph node involvement or it is not specified.
Note 4: If the clinician says "adnexa palpated" but doesn't mention lymph nodes, assume lymph nodes are not involved, code "000".
Note 5: If either exploratory or definitive surgery is done with no mention of lymph nodes, assume regional nodes are not involved.

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), NOS: Obturator Pelvic, NOS	N1	N1	RN	RN
120	OBSOLETE DATA CONVERTED V0203 See code 350 Regional lymph node(s): Lateral sacral (laterosacral)	ERROR	ERROR	ERROR	ERROR
200	Regional lymph node(s): Aortic: Lateral (lumbar) Para-aortic Periaortic Retroperitoneal, NOS	N1	N1	RN	RN
300	Regional lymph node(s): Inguinal	N1	N1	D	RN
350	Regional lymph node(s): Lateral sacral (laterosacral)	N1	N1	D	RN
400	200 + 100	N1	N1	RN	RN
420	OBSOLETE DATA CONVERTED V0203 See code 440 (120 or 300) + (100 or 200)	ERROR	ERROR	ERROR	ERROR
440	(350 or 300) + (100 or 200)	N1	N1	D	RN
500	Regional lymph nodes, NOS	N1	N1	RN	RN
510	FIGO Stage IIIC based on lymph node involvement or basis not specified	N1	N1	RN	RN
800	Lymph nodes, NOS	N1	N1	RN	RN
999	Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not documented in patient record	NX	NX	U	U

CS Lymph Nodes