]> C14.0 Pharynx, NOS C14.2 Waldeyer ring C14.8 Overlapping lesion of lip, oral cavity Note: AJCC does not define TNM staging for these sites. &commontumorsizepharynx; CS Extension Note 1: Connective tissues large enough to be given a specific name are considered adjacent structures. For example, prevertebral fascia and jugular vein have names. Continuous tumor growth from one organ into an adjacent named structure is coded to 600. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 In situ, intraepithelial, noninvasive NA NA IS IS 100 Invasive tumor confined to site of origin NA NA L L 300 Localized, NOS NA NA L L 400 NA NA RE RE 500 Pharynx and oral cavity involved NA NA RE RE 550 NA NA RE RE 600 NA NA RE RE 800 Further contiguous extension NA NA D D 950 No evidence of primary tumor NA NA U U 999 NA NA U U ¬appcsextevalnontnm; 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 Instructions. Note 2: For head and neck schemas, additional information about lymph nodes (size of involved nodes, extracapsular extension, and levels involved) is coded in CS Site-Specific Factors 1-6. Note 3: 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 4: 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. Note 5: All regional nodes except Supraclavicular nodes were coded 100 in CS Version 1; Supraclavicular nodes were coded 120. Mandibular nodes are included with Facial nodes. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 No regional lymph node involvement NA NA NONE NONE 100 NA NA RN RN 110 NA NA D RN 120 NA NA D D 800 Lymph nodes, NOS NA NA RN RN 999 NA NA U U ¬appcsregnodesevalnontnm; &generalreglnpos; &generalreglnexam; &commonmetsatdxpharynxother; ¬appcsmetsevalnontnm; &commonssf1melanomaheadandneck; &commonssf2headneck; &commonssf3headneck; &commonssf4headneck; &commonssf5headneck; &commonssf6headneck; &commonssf7headandneck; &commonssf8headandneck; &commonssf9headandneck; &commonssf10headandneck; ¬appnewssf11; ¬appnewssf12; ¬appnewssf13; ¬appnewssf14; ¬appnewssf15; ¬appnewssf16; ¬appnewssf17; ¬appnewssf18; ¬appnewssf19; ¬appnewssf20; ¬appnewssf21; ¬appnewssf22; ¬appnewssf23; ¬appnewssf24; ¬appnewssf25; ¬apphistologiestnm7; &commonhistologyexclusions1; ¬appcsstagetnm7; ¬appcsstage; &commonsummarystage;