Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/25/2010 [ Schema ]

TongueAnterior

CS Extension

Note 1: Periosteum is a fibrous membrane that wraps the outer surface of bones. Cortical bone is the dense compact outer layer of the bone. Trabecular, cancellous, or spongy bone (spongiosa) is a porous network of tissue filling the interior of bone, decreasing weight and allowing room for blood vessels and marrow.
Note 2: AJCC assigns T value based on size when bone involvement is limited to the cortex . Involvement through cortical bone is required for assignment of T4a.
Note 3: Use code 300 for localized tumor ONLY if no information is available to assign codes 100, 200, 400, 405, 410, or 415.
Note 4: Use code 405, 410, 415, 775, 810, or 815 if the physician's assignment of T category is the ONLY information available about the extent of the tumor.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive; intraepithelial	Tis	Tis	IS	IS
100	Invasive tumor on one side confined to: Lamina propria Submucosa	^	*	L	L
200	Musculature of tongue, intrinsic or NOS	^	*	L	L
300	Localized, NOS Midline tumor	^	*	L	L
400	Tumor crosses midline	^	*	L	L
405	Stated as T1 with no other information on extension	^	*	L	L
410	Stated as T2 with no other information on extension	^	*	L	L
415	Stated as T3 with no other information on extension	^	*	L	L
500	Base of tongue Floor of mouth Gingiva, lower Retromolar trigone	^	*	RE	RE
530	Sublingual gland	^	*	RE	RE
535	Cortical bone of mandible Mandible, NOS Cortical bone, NOS (not specified in higher codes) Bone, NOS (not specified in higher codes)	^	*	RE	D
545	Cortical bone of maxilla Maxilla, NOS	^	*	D	D
600	Lateral pharyngeal wall Soft palate, inferior surface Tonsillar pillars and fossae Tonsils	T4a	T4a	D	RE
675	600 + (535 or 545) (Any structure in code 600 + Any structure in code 535 or 545)	T4a	T4a	D	D
700	OBSOLETE DATA RETAINED V0200 Mandible	ERROR	T4a	RE	D
720	OBSOLETE DATA RETAINED V0200 700 + 600	ERROR	T4a	D	D
725	Trabecular bone of mandible	T4a	T4a	RE	D
735	725 + (545 or 600) (Trabecular bone of mandible + Any structure in code 545 or 600)	T4a	T4a	D	D
740	OBSOLETE DATA RETAINED V0200 Maxilla Maxillary sinus	ERROR	T4a	D	D
745	Trabecular bone of maxilla Maxillary sinus (antrum)	T4a	T4a	D	D
750	Deep (extrinsic) muscle of tongue: Genioglossus Geniohyoid Hyoglossus Mylohyoid Palatoglossus Styloglossus	T4a	T4a	D	D
760	Skin of face	T4a	T4a	D	D
775	Stated as T4a with no other information on extension	T4a	T4a	RE	RE
788	Specified bone (other than maxilla, mandible, and bones in codes 790 and 800)	T4b	T4b	D	D
790	Masticator space Pterygoid plates	T4b	T4b	D	D
800	Further contiguous extension including: Skull base Internal carotid artery (encased)	T4b	T4b	D	D
810	Stated as T4b with no other information on extension	T4b	T4b	D	D
815	Stated as T4 [NOS] with no other information on extension	T4NOS	T4NOS	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 codes 100 through 545 ONLY, the T category for AJCC 7th Edition staging is based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.
* For codes 100 through 545 ONLY, the T category for AJCC 6th Edition staging is based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.