]> C04.0 Anterior floor of mouth C04.1 Lateral floor of mouth C04.8 Overlapping lesion of floor of mouth C04.9 Floor of mouth, NOS &commontumorsizeheadandneck; 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 the T category based on size when bone involvement is limited to the cortex. Involvement through cortical bone is required for assignment of T4a. Note 3: The assignment of T1, T2, and T3 categories for tumors of the lip and oral cavity is based on tumor size. A physician's statement of the Tcategory may be used to code CS Tumor Size and/or CS Extension if this is the only information in the medical record regarding one or both of these fields. However the two fields are coded independently: for example the record may document size but not extension, other than the physician's statement of the T category. Use codes 405, 410, 415, 780, 810, or 815 as appropriate to code CS Extension based on a statement of T when no other extenison information is available. Note 4: Use code 300 for localized tumor only if no information is available to assign code 100, 400, 405, 410, or 415. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 In situ, intraepithelial, noninvasive Tis Tis IS IS 100 ^ * L L 300 Localized, NOS ^ * 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 ^ * RE RE 530 ^ * RE RE 535 ^ * RE RE 545 ^ * D D 550 ^ * RE RE 600 ^ * RE RE 603 600 +550 ^ * RE RE 605 ^ * D D 620 T4a T4a L L 630 ERROR T4a RE RE 635 T4a T4a RE RE 640 ERROR ERROR ERROR ERROR 645 T4a T4a D D 700 ERROR ERROR ERROR ERROR 725 Trabecular bone of mandible T4a T4a RE RE 760 Skin of undersurface of chin/neck T4a T4a RE RE 765 T4a T4a D D 770 ERROR ERROR ERROR ERROR 775 T4a T4a D D 780 T4a T4a RE RE 788 T4b T4b D D 790 T4b T4b D D 800 ERROR T4b D D 805 T4b T4b D D 810 T4b T4b D D 815 T4NOS T4NOS RE RE 950 No evidence of primary tumor T0 T0 U U 999 TX TX U U ^Note: For CS Extension codes 100 through 605 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this schema. *Note: For CS Extension codes 100 through 605 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this schema. &generalcstsexteval; &commonlymphnodesmouth; &generalregnodeseval; &generalreglnpos; &generalreglnexam; &commonmetslips; &generalmetseval; &commonssf1headneck; &commonssf2headneck; &commonssf3headneck; &commonssf4headneck; &commonssf5headneck; &commonssf6headneck; &commonssf7headandneck; &commonssf8headandneck; &commonssf9headandneck; &commonssf10headandneck; &commonssf11headandneck; ¬appnewssf12; ¬appnewssf13; ¬appnewssf14; ¬appnewssf15; ¬appnewssf16; ¬appnewssf17; ¬appnewssf18; ¬appnewssf19; ¬appnewssf20; ¬appnewssf21; ¬appnewssf22; ¬appnewssf23; ¬appnewssf24; ¬appnewssf25; &commonhistinclusioncarcinoma; &commonhistologyexclusions1; &commonstageheadandnecktnm7; &commonheadandneckajcc6; &commonsummarystage; Extension Size Table Note: For CS Extension codes 100 through 605 ONLY, the T category is assigned based on value of CS Tumor Size as shown in this table. CS Extension CS Tumor Size 000 0 CS Tumor Size 001-020 1 20 CS Tumor Size 021-040 21 40 CS Tumor Size 041-989 41 989 CS Tumor Size 990-991 990 991 CS Tumor Size 992 992 CS Tumor Size 993-994 993 994 CS Tumor Size 995 995 CS Tumor Size 996 996 CS Tumor Size 997-998 997 998 CS Tumor Size 999 999 100 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 300 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 400 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 405 ERROR T1 T2 T3 T1 T1 T1 T1 T3 ERROR T1 410 ERROR T1 T2 T3 T1 T2 T2 T2 T3 ERROR T2 415 ERROR T1 T2 T3 T1 T3 T3 T3 T3 ERROR T3 500 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 530 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 535 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 545 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 550 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 600 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 603 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX 605 ERROR T1 T2 T3 T1 T1 T2 T3 T3 ERROR TX &commonnoderangeanttongue;