Collaborative Stage

Collaborative Stage for TNM 7 - Revised 06/30/2009 [ Schema ]

CS Extension

Note 1: Islets of Langerhans are distributed throughout the pancreas, and, therefore, any extension code can be used.
Note 2: Codes 400-800 are used for contiguous extension of tumor from the site of origin. Discontinuous involvement is coded in CS Mets at DX.
Note 3: If the only information regarding the tumor extension is the physicians's statement of the "T" category, assign code 150, 200, 420, or 790. (Refer to CS Tumor Size table for instructions on coding tumor size if assigning code 150 or 200).

Code	Description	TNM 7th Map	TNM 6th Map	SS77 Map	SS2000 Map
000	In situ; non-invasive PanIn III Pancreatic intraepithelial neoplasia III Stated as Tis, NOS	Tis	Tis	IS	IS
100	Confined to pancreas	^	*	L	L
150	Stated as T1, NOS with no other information on extension	^	*	L	L
200	Stated as T2, NOS with no other information on extension	^	*	L	L
300	Localized, NOS	^	*	L	L
400	Peripancreatic tissue	T3	T3	RE	RE
420	Stated as T3, NOS	T3	T3	RE	RE
450	Ampulla of Vater Duodenum Extra hepatic bile duct(s)	T3	T3	RE	RE
500	Adjacent large vessel(s) (except as listed in code 600) Colon Spleen Stomach	T3	T3	RE	RE
600	Tumor is inseparable from the celiac axis or superior mesenteric artery Aorta Celiac artery Superior mesenteric artery	T4	T4	RE	RE
790	Stated as T4, NOS	T4	T4	D	D
800	Further contiguous extension	T4	T4	D	D
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 100, 150, 200 and 300 ONLY, the T category is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.
* For Extension codes 100, 150, 200 and 300 ONLY, the T category is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.