]> C12.9 Pyriform sinus C13.0 Postcricoid region C13.1 Hypopharyngeal aspect of aryepiglottic fold C13.2 Posterior wall of hypopharynx C13.8 Overlapping lesion of hypopharynx C13.9 Hypopharynx, NOS (laryngopharynx) CS Tumor Size Note: Code the specific tumor size to the nearest millimeter (mm) as documented in the medical record. Use codes 990-995 only if a specific measurement is not available. Code Description 000 No mass/tumor found 001-988 001 - 988 millimeters (mm) (Exact size in mm) 989 989 mm or larger 990 Microscopic focus or foci only, no size of focus given 991 Described as "less than 1 centimeter (cm)" 992 Described as "less than 2 cm," or "greater than 1 cm," or "between 1 cm and 2 cm"] 993 Described as "less than 3 cm," or "greater than 2 cm," or "between 2 cm and 3 cm" 994 995 Described as "less than 5 cm," or "greater than 4 cm," or "between 4 cm and 5 cm" 999 CS Extension Note 1: If there is fixation of hemilarynx or larynx, code to 550, not 420 or 450. Note 2: Use code 300 for localized tumor only if no information is available to assign code 100, 200, or 305. Note 3: Use code 305, 455, 565, 638, 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 Tis Tis IS IS 100 ^ * L L 150 ERROR ERROR ERROR ERROR 200 ^ * L L 300 Localized, NOS ^ * L L 305 Stated as T1 with no other information on extension ^ * L L 400 Oropharynx ^ * RE RE 420 ^ * RE RE 450 ^ * RE RE 455 ^ * L L 500 Larynx WITHOUT fixation ^ * RE RE 510 ERROR ERROR ERROR ERROR 550 Fixation of hemilarynx or larynx T3 T3 RE RE 560 Esophagus T3 T4a RE RE 565 Stated as T3 with no other information on extension T3 T3 RE RE 600 T4a T4a RE RE 610 ERROR ERROR ERROR ERROR 620 Thyroid gland T4a T4a D RE 630 T4a T4a D RE 635 Hyoid bone T4a T4a D D 638 Stated as T4a with no other information on extension T4a T4a RE RE 640 Prevertebral fascia/muscle(s) T4b T4b RE RE 645 T4b T4b D D 650 Carotid artery (encased) T4b T4b D RE 655 T4b T4b D D 660 ERROR ERROR ERROR ERROR 700 Mediastinal structures T4b T4b D D 760 T4b T4b D D 800 Further contiguous extension 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 TX TX U U ^ For CSExtension codes 100, 200, 300, 305, 400, 420, 450, and 500 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size and CS Extension as shown in the Extension Size Table for this schema. * For CS Extension codes 100, 200, 300, 305, 400, 420, 450, and 500 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size and CS Extension 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 Instructions. 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 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. Note 6: Level II nodes moved from code 100 in CSV1 to code 120. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 No regional lymph node involvement 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 codes 100-120, 200-220, 300-320, 400-420, 500-520, and 800 ONLY, the N category for AJCC 7th Edition staging is assigned based on the value of Site-Specific Factor 1, Size of Lymph Nodes, using the extra table, Lymph Nodes Size Table for this site. * For codes 100-120, 200-220, 300-320, 400-420, 500-520, and 800 ONLY, the N category for AJCC 6th Edition staging is assigned based on the value of Site-Specific Factor 1, Size of Lymph Nodes, using the extra table, Lymph Nodes Size Table for this site. &generalregnodeseval; &generalreglnpos; &generalreglnexam; &commonmetslips; &generalmetseval; &commonssf1headneck; &commonssf2headneck; &commonssf3headneck; &commonssf4headneck; &commonssf5headneck; &commonssf6headneck; &commonssf7headandneck; &commonssf8headandneck; &commonssf9headandneck; &commonssf10headandneck; ¬appnewssf11; ¬appnewssf12; ¬appnewssf13; ¬appnewssf14; ¬appnewssf15; ¬appnewssf16; ¬appnewssf17; ¬appnewssf18; ¬appnewssf19; ¬appnewssf20; ¬appnewssf21; ¬appnewssf22; ¬appnewssf23; ¬appnewssf24; ¬appnewssf25; &commonhistinclusioncarcinoma; &commonhistologyexclusions1; &commonstageheadandnecktnm7; &commonheadandneckajcc6; &commonsummarystage; Extension Size Table Note: For Extension codes 100, 200, 300, 305, 400, 420, 450, and 500 ONLY, the T category is assigned based on the value of CS Tumor Size and CS Extension as shown here. 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 990-992 990 992 CS Tumor Size 993-994 993 994 CS Tumor Size 995 995 CS Tumor Size 996-998 996 998 CS Tumor Size 999-999 999 100 ERROR T1 T2 T3 T1 T2 T3 ERROR TX 200 ERROR T2 T2 T3 T2 T2 T3 ERROR T2 300 ERROR T1 T2 T3 T1 T2 T3 ERROR TX 305 ERROR T1 T2 T3 T1 T2 T3 ERROR T1 400 ERROR T2 T2 T3 T2 T2 T3 ERROR T2 420 ERROR T1 T2 T3 T1 T2 T3 ERROR TX 450 ERROR T2 T2 T3 T2 T2 T3 ERROR T2 455 ERROR T2 T2 T3 T2 T2 T3 ERROR T2 500 ERROR T2 T2 T3 T2 T2 T3 ERROR T2 &commonnoderangeheadandneck;