]> C03.0 Upper gum &commontumorsizeheadandneck; CS Extension Note 1: Superficial erosion alone of bone/tooth socket by gingival primary is not sufficient to code as bone involvement (code 700). Note 2: Periosteum is a fibrous membrane that wraps the outer surface of bones. Mucoperiosteum is a compound structure of muccous membrane and periosteum. 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 3: 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 4: 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 T category 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, 775, 810, or 815 as appropriate to code CS Extension based on a statement of T when no other extension information is available. Note 5: Use code 300 for localized tumor only if no information is available to assign code 100, 405, 410, or 415. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 In situintraepithelial, noninvasive Tis Tis IS IS 100 Invasive tumor confined to lamina propria (mucoperiosteum) (stroma) ^ * 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 ERROR ERROR ERROR ERROR 510 ^ * RE RE 535 ^ * RE RE 550 ^ * RE RE 600 ^ * RE RE 650 ^ * RE RE 700 ERROR ERROR ERROR ERROR 720 T4a T4a RE RE 725 Trabecular bone of maxilla or palatine bone T4a T4a RE RE 740 T4a T4a D D 760 Skin of face T4a T4a D D 770 T4a T4a D D 775 Stated as T4a with no other information on extension T4a T4a RE RE 780 Labial mucosa (inner lip), lower lip T4b T4b D RE 785 T4b T4b D D 788 T4b T4b D D 790 ERROR ERROR ERROR ERROR 795 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 ^ For CS Extension codes 100-650 ONLY, the T category for AJCC 7staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this schema. * For CS Extension codes 100-650 ONLY, the T category for AJCC 6 Edition staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this schema. &generalcstsexteval; CS Lymph Nodes Note 1: For head and neck schemas, this field includes all lymph nodes defined as Levels I-VII and Other by AJCC. The complete definitions are provided in the General Rules, Section 2. Note 2: For head and neck schemas, additional information about lymph nodes (size of involved nodes, extracapsular extension, levels involved, and location of involved nodes above or below the lower border of the cricoid cartilage)is coded in CS Site-Specific Factors 1,3-9. Note 3: If laterality of lymph nodes is not specified, assume nodes are ipsilateral. Midline nodes are considered ipsilateral. Note 4: For head and neck cancers, if lymph nodes are described only as "supraclavicular", try to determine if they are in Level IV (deep to the sternocleidomastoid muscle, in the lower jugular chain) or Level V (in the posterior triangle, inferior to the transverse cervical artery) and code appropriately. If the specific level cannot be determined, consider them as Level V nodes. Note 5: The description of lymph nodes has been standardized across the head and neck schemas. All lymph node levels and groups listed here are considered regional nodes for AJCC staging. Summary Stage 1977 and Summary Stage 2000 divide these nodes into regional and distant groups. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 N0 N0 NONE NONE 100 ^ * RN RN 110 ^ * D RN 120 ^ * D D 180 Stated as N1 with no other information on regional lymph nodes ^ * RN RN 190 Stated as N2a with no other information on regional lymph nodes ^ * RN RN 200 Multiple positive ipsilateral nodes listed in code 100 ^ * RN RN 210 ^ * D RN 220 ^ * D D 290 Stated as N2b with no other information on regional lymph nodes ^ * RN RN 300 ^ * RN RN 310 ^ * D RN 320 ^ * D D 400 ^ * RN RN 410 ^ * D RN 420 ^ * D D 490 Stated as N2c with no other information on regional lymph nodes ^ * RN RN 500 ^ * RN RN 510 ^ * D RN 520 ^ * D D 600 Stated as N2 [NOS] with no other information on regional lymph nodes ^ * RN RN 700 Stated as N3 with no other information on regional lymph nodes ^ * RN RN 800 Lymph nodes, NOS N1 N1 RN RN 999 NX NX U U ^ For CS Lymph Nodes codes 100-700 ONLY, the N category for AJCC 7 staging is assigned based on the value of CS Site-Specific Factor 1, Size of Lymph Nodes, as shown in the Lymph Nodes Size Table for this schema. A CS Site-Specific Factor 1 code takes precedence over a CS Lymph Nodes "stated as N" code; however, if CS Site-Specific Factor 1 is coded as unknown, the N category may be assigned based on "stated as N" recorded in CS Lymph Nodes. * For CS Lymph Nodes codes 100-700 ONLY, the N category for AJCC 6 staging is assigned based on the value of CS Site-Specific Factor 1, Size of Lymph Nodes, as shown in the Lymph Nodes Size Table for this schema. A CS Site-Specific Factor 1 code takes precedence over a CS Lymph Nodes "stated as N" code; however, if CS Site-Specific Factor 1 is coded as unknown, the N category may be assigned based on "stated as N" recorded in CS Lymph Nodes. &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; &commonextbysizegums; &commonnoderangeheadandneck;