Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/23/2009 [ Schema ]

LipOther

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 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, 405, 410, or 415.
Note 4: Use codes 405, 410, 415, 778, 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 confined to: Labial mucosa (inner lip) Lamina propria Multiple foci Submucosa (superficial invasion) Vermilion surface Superficial extension to: Skin of lip Subcutaneous soft tissue of lip	^	*	L	L
200	Musculature	^	*	L	L
300	Localized, NOS	^	*	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	Buccal mucosa (inner cheek) Commissure Opposite (both) lip(s)	^	*	RE	RE
510	Gingiva	^	*	RE	RE
535	Cortical bone of maxilla Maxilla, NOS Cortical bone of mandible Mandible, NOS Cortical bone, NOS (not specified in higher codes) Bone, NOS (not specified in higher codes)	^	*	RE	RE
725	Trabecular bone of maxilla or mandible	T4a	T4a	RE	RE
740	Nose	T4a	T4a	RE	D
750	Tongue	T4a	T4a	D	D
760	Skin of face/neck	T4a	T4a	D	D
770	OBSOLETE DATA RETAINED V0200 Cortical bone Floor of mouth Inferior alveolar nerve	ERROR	T4a	D	D
778	Stated as T4a with no other information on extension	T4a	T4a	RE	RE
788	Specified bone (other than mandible, maxilla, or 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 Extension codes 100 through 535 ONLY, the T category for AJCC 7th Edition staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.
* For Extension codes 100 through 535 ONLY, the T category for AJCC 6th Edition staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.