Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/22/2010 [ Schema ]

Appendix

CS Extension

Note 1: Ignore intraluminal extension to adjacent segment(s) of colon; code depth of invasion or extracolonic spread as indicated.
Note 2: Codes 600-800 are used for contiguous extension from the site of origin. Discontinuous involvement is coded in CS Mets at DX.
Note 3: Tumor that is adherent to other organs or structures, macroscopically, is classified T4b. However, if no tumor is present in the adhesion, microscopically, the classification should be pT3.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive; intraepithelial	Tis	Tis	IS	IS
050	(Adeno)carcinoma in a polyp or adenoma, noninvasive	Tis	Tis	IS	IS
100	Invasive tumor confined to mucosa, NOS (including intramucosal, NOS)	Tis	Tis	L	L
110	Lamina propria, including lamina propria in the stalk of a polyp	Tis	Tis	L	L
120	Confined to and not through the muscularis mucosae, including muscularis mucosae in the stalk of a polyp.	Tis	Tis	L	L
130	Confined to head of polyp, NOS	T1	T1	L	L
140	Confined to stalk of polyp, NOS	T1	T1	L	L
150	Invasive tumor in polyp, NOS	T1	T1	L	L
160	Invades submucosa (superficial invasion), including submucosa in the stalk of a polyp	T1	T1	L	L
170	Stated as T1[NOS] with no other information on extension	T1	T1	L	L
200	Muscularis propria invaded Stated as T2[NOS] with no other information on extension	T2	T2	L	L
300	Confined to appendix, NOS Confined to colon, NOS Localized, NOS	T1	T1	L	L
400	Tumor invades mesoappendix Invasion through muscularis propria or muscularis, NOS Non-peritonealized pericolic tissues invaded Perimuscular tissue invaded Subserosal tissue/(sub)serosal fat invaded Transmural, NOS	T3	T3	L	L
410	Stated as T3[NOS] with no other information on extension	T3	T3	L	L
420	Fat, NOS	T3	T3	RE	RE
450	Extension to: Adjacent tissue(s), NOS Connective tissue Mesenteric fat Mesentery Mesocolon Pericolic fat	T3	T3	RE	RE
460	Adherent to other organs or structures, but no microscopic tumor found in adhesion(s)	T3	T3	RE	RE
500	Invasion of/through serosa (mesothelium) (visceral peritoneum)	T4a	T4	RE	RE
510	For mucinous tumors only: Peritoneal involvement confined within right lower quadrant ONLY	T4a	*	D	D
511	(510) + (130-170) or (300) For mucinous tumors only: Peritoneal involvement confined within right lower quadrant PLUS local extension categorized as T1	T4a	*	D	D
512	(510) + (200) For mucinous tumors only: Peritoneal involvement confined within right lower quadrant PLUS invasion of muscularis propria or other local extension categorized as T2	T4a	*	D	D
513	(510) + (400-460) For mucinous tumors only: Peritoneal involvement confined within right lower quadrant PLUS local extension categorized as T3	T4a	*	D	D
550	Any of [(420) to (450)] + (500)	T4a	T4	RE	RE
560	Stated as T4a with no other information on extension	T4a	T4	RE	RE
570	Adherent to other organs or structures, NOS	T4b	T4	RE	RE
600	Small intestine Greater omentum	T4b	T4	RE	RE
650	Abdominal wall Retroperitoneum (excluding fat)	T4b	T4	RE	RE
660	OBSOLETE DATA RETAINED V0200 Ascending colon: Right kidney Right ureter Descending colon: Left kidney Left ureter	ERROR	T4	RE	RE
670	(570-650) + (510)	T4b	*	D	D
675	(570-650) + (511)	T4b	*	D	D
680	(570-650) + (512)	T4b	*	D	D
690	(570-650) + (513)	T4b	*	D	D
700	Fallopian tube Ovary Uterus	T4b	T4	D	D
750	Adrenal (suprarenal) gland Bladder Diaphragm Fistula to skin Gallbladder Other segment(s) of colon via serosa	T4b	T4	D	D
800	Kidney Liver Ureter Other contiguous extension	T4b	T4	D	D
850	Stated as T4b with no other information on extension	T4b	T4	RE	RE
900	Stated as T4[NOS] with no other information on extension	T4NOS	T4	RE	RE
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown extension Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

* For Extension codes 510-513 and 660-690 ONLY, the T category is assigned based on the value of CS Mets at Dx, as shown in the AJCC 6th T and M from CS Extension and CS Mets at DX table for this site.