Collaborative Stage

Collaborative Stage for TNM 7 - Revised 11/30/2009 [ Schema ]

Rectum

CS Extension

Note 1: Ignore intraluminal extension to adjacent segment(s) of colon/rectum and 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 if present in the adhesion, microscopically, the classification should be pT3.
Note 4: High grade dysplasia and severe dysplasia are generally not reportable in cancer registries, but if a registry does collect it, code 000 should be used.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; non-invasive; 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	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	Localized, NOS Confined to rectum, NOS	T1	T1	L	L
400	Extension through wall, NOS 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	Adjacent (connective) tissue: For all sites: Perirectal fat For rectosigmoid: Mesentery (including mesenteric fat, mesocolon) Pericolic fat For rectum: Extension to anus Rectovaginal septum	T3	T3	RE	RE
460	Adherent to other organs or structures but no tumor found in adhesion(s)	T3	T3	RE	RE
490	Stated as T4[NOS] with no other information on extension	T4NOS	T4	RE	RE
500	Invasion of/through serosa (mesothelium) (visceral peritoneum)	T4a	T4	RE	RE
550	(500) with [(420) or (450)]	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	Rectosigmoid: Cul de sac (rectouterine pouch) Pelvic wall Small intestine Rectum: Bladder for males only Cul de sac (rectouterine pouch) Ductus deferens Pelvic wall Prostate Rectovesical fascia for male only Seminal vesicle(s) Skeletal muscle of pelvic floor Vagina	T4b	T4	RE	RE
700	Rectosigmoid: Bladder Colon via serosa Fallopian tube(s) Ovary(ies) Prostate Ureter(s) Uterus Rectum: Bladder for female only Bone(s) of pelvis Urethra Uterus	T4b	T4	D	D
800	Further 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