]> C73.9 Thyroid gland Note: The determination of AJCC stage group from T, N, and M for thyroid depends on histologic type, grade, and age. The Histologies, Grade, Stage table shows the selection of the AJCC Stage table based on histology and grade. For papillary and follicular carcinomas, age is also needed for the selection; if age at diagnosis is unknown, AJCC stage will be derived as unknown for these histologies. &commontumorsizethyroid; CS Extension Note 1: AJCC considers all anaplastic carcinomas to be T4. Note 2: AJCC considers "in situ carcinoma of thyroid gland" an impossible diagnosis. Any case so coded is mapped to TX for AJCC stage and in situ Summary Stage. Note 3: The assignment of T1 and T2 categories for carcinoma of the thyroid is based on tumor size. A physician's statement of the T category may be used to code both 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. Use codes 405, 410, 415, 420, 490, 560, 810, and 815 as appropriate to code CS Extension based on a statement of T when no other extension information is available. Note 4: Use code 300 for localized tumor only if no information is available to assign codes 100, 200, 400, 405, 410, 415, 420, or 490. Note 5: Extension codes 405, 410, 415, 420, and 490 are not compatible with anaplastic carcinomas of the thyroid. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 In situ, intraepithelial, noninvasive ^ * IS IS 100 ^ * L L 200 Multiple foci confined to thyroid ^ * L L 300 Localized, NOS ^ * L L 400 Into thyroid capsule, but not beyond ^ * L L 405 Stated as T1a with no other information on extension ^ * L L 410 Stated as T1b with no other information on extension ^ * L L 415 Stated as T1 [NOS] with no other information on extension ^ * L L 420 Stated as T2 with no other information on extension ^ * L L 450 ^ * RE RE 480 Pericapsular soft tissue/connective tissue ^ * RE RE 490 Stated as T3 with no other information on extension ^ * L L 500 ^ * RE RE 520 ^ * RE RE 550 Trachea ^ * D D 560 Stated as T4a with no other information on extension ^^ T4a ** ** 600 ^^ T4b RE RE 620 ^^ T4b RE RE 650 ^^ T4b D D 700 ^^ T4b D D 720 ERROR ERROR ERROR ERROR 730 ^^ T4b D D 800 ^^ T4b D D 810 Stated as T4b with no other information on extension ^^ T4b D D 815 Stated as T4 [NOS] with no other information on extension ^^ T4NOS RE RE 950 No evidence of primary tumor ^ * U U 999 ^ * U U ^ For CS Extension codes 000, 100-550, 950, and 999 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size and/or CS Extension and CS Site-Specific Factor 1 as shown in the Extension Size SSF 1 AJCC 7 Table for all histologies except 8020, 8021, 8030, 8031, and 8032, or any other histology with grade equal to 4. For these histologies or grade 4, the T category for AJCC 7 staging is assigned based on the value of CS Extension and CS Site-Specific Factor 1 as shown in the Histology Grade Extension SSF 1 AJCC 7 Table. ^^ For CS Extension codes 560-700 and 730-815 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Extension and CS Site-Specific Factor 1 as shown in the Extension T4 SSF 1 AJCC 7 Table. * For CS Extension codes 000, 100-550, 950, and 999 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size and/or CS Extension as shown in the Extension Size AJCC 6 Table for all histologies except 8020, 8021, 8030, 8031, and 8032, or any other histology with grade equal to 4. For these histologies or grade 4, the T category for AJCC 6 staging is assigned based on the value of CS Extension as shown in the Histology Grade Extension AJCC 6 Table. ** For CS Extension code 560 ONLY, the value for SS1977 and SS2000 is assigned based on the value of histology and grade as shown in the Histology Grade Extension Summary Stage Table. &generalcstsexteval; CS Lymph Nodes Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in CS Mets at DX. Note 2: This field includes all lymph nodes defined as Levels I-VI and Other by AJCC. The complete definitions are provided in the General Rules, Section 2 for head and neck cancers. Note 3: Assignment of N value for thyroid does not depend on laterality. All codes for nodal involvement include ipsilateral, bilateral, contralateral, and midline lymph 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. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 No regional lymph node involvement N0 N0 NONE NONE 100 ERROR ERROR ERROR ERROR 110 ERROR ERROR ERROR ERROR 120 N1a N1a RN RN 125 N1a N1a RN RN 130 ERROR ERROR ERROR ERROR 135 N1b N1b RN RN 140 ERROR ERROR ERROR ERROR 150 ERROR ERROR ERROR ERROR 155 N1b N1b D RN 158 N1b N1b D RN 160 N1b N1b D D 170 N1b N1b RN RN 180 N1NOS N1NOS RN RN 200 ERROR ERROR ERROR ERROR 210 ERROR ERROR ERROR ERROR 300 ERROR ERROR ERROR ERROR 310 ERROR ERROR ERROR ERROR 500 Regional lymph node(s), NOS N1NOS N1NOS RN RN 800 Lymph nodes, NOS N1NOS N1NOS RN RN 999 NX NX U U &generalregnodeseval; &generalreglnpos; &generalreglnexam; CS Mets at DX Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 00 No distant metastasis M0 M0 NONE NONE 10 ERROR ERROR ERROR ERROR 11 ERROR ERROR ERROR ERROR 12 Distant lymph node(s), NOS M1 M1 D D 40 M1 M1 D D 50 ERROR ERROR ERROR ERROR 51 M1 M1 D D 60 M1 M1 D D 99 M0 MX U U &generalmetseval; CS Site-Specific Factor 1 Solitary vs Multifocal Tumor Note: The AJCC definition for multifocal tumor differs from the Multiple Primary/Histology (MP/H) definition for Multiplicity Counter. Use code 020 for any tumor with multiple foci, even if foci are not measured. Code Description 000 001 002 010 Solitary tumor (s) 020 Multifocal tumor (m) 988 999 ¬appssfactor2; ¬appssfactor3; ¬appssfactor4; ¬appssfactor5; ¬appssfactor6; ¬appnewssf7; ¬appnewssf8; ¬appnewssf9; ¬appnewssf10; ¬appnewssf11; ¬appnewssf12; ¬appnewssf13; ¬appnewssf14; ¬appnewssf15; ¬appnewssf16; ¬appnewssf17; ¬appnewssf18; ¬appnewssf19; ¬appnewssf20; ¬appnewssf21; ¬appnewssf22; ¬appnewssf23; ¬appnewssf24; ¬appnewssf25; &commonhistinclusioncarcinoma; &commonhistologyexclusions1; AJCC TNM 7 Stage-Thyroid: Papillary and Follicular Age less than 45 T N M Stage T0 N0 M0 I T0 N1a M0 I T0 N1b M0 I T0 N1NOS M0 I T0 NX M0 I T1a N0 M0 I T1a N1a M0 I T1a N1b M0 I T1a N1NOS M0 I T1a NX M0 I T1a(s) N0 M0 I T1a(s) N1a M0 I T1a(s) N1b M0 I T1a(s) N1NOS M0 I T1a(s) NX M0 I T1a(m) N0 M0 I T1a(m) N1a M0 I T1a(m) N1b M0 I T1a(m) N1NOS M0 I T1a(m) NX M0 I T1b N0 M0 I T1b N1a M0 I T1b N1b M0 I T1b N1NOS M0 I T1b NX M0 I T1b(s) N0 M0 I T1b(s) N1a M0 I T1b(s) N1b M0 I T1b(s) N1NOS M0 I T1b(s) NX M0 I T1b(m) N0 M0 I T1b(m) N1a M0 I T1b(m) N1b M0 I T1b(m) N1NOS M0 I T1b(m) NX M0 I T1NOS N0 M0 I T1NOS N1a M0 I T1NOS N1b M0 I T1NOS N1NOS M0 I T1NOS NX M0 I T1NOS(s) N0 M0 I T1NOS(s) N1a M0 I T1NOS(s) N1b M0 I T1NOS(s) N1NOS M0 I T1NOS(s) NX M0 I T1NOS(m) N0 M0 I T1NOS(m) N1a M0 I T1NOS(m) N1b M0 I T1NOS(m) N1NOS M0 I T1NOS(m) NX M0 I T2 N0 M0 I T2 N1a M0 I T2 N1b M0 I T2 N1NOS M0 I T2 NX M0 I T2(s) N0 M0 I T2(s) N1a M0 I T2(s) N1b M0 I T2(s) N1NOS M0 I T2(s) NX M0 I T2(m) N0 M0 I T2(m) N1a M0 I T2(m) N1b M0 I T2(m) N1NOS M0 I T2(m) NX M0 I T3 N0 M0 I T3 N1a M0 I T3 N1b M0 I T3 N1NOS M0 I T3 NX M0 I T3(s) N0 M0 I T3(s) N1a M0 I T3(s) N1b M0 I T3(s) N1NOS M0 I T3(s) NX M0 I T3(m) N0 M0 I T3(m) N1a M0 I T3(m) N1b M0 I T3(m) N1NOS M0 I T3(m) NX M0 I T4a N0 M0 I T4a N1a M0 I T4a N1b M0 I T4a N1NOS M0 I T4a NX M0 I T4a(s) N0 M0 I T4a(s) N1a M0 I T4a(s) N1b M0 I T4a(s) N1NOS M0 I T4a(s) NX M0 I T4a(m) N0 M0 I T4a(m) N1a M0 I T4a(m) N1b M0 I T4a(m) N1NOS M0 I T4a(m) NX M0 I T4b N0 M0 I T4b N1a M0 I T4b N1b M0 I T4b N1NOS M0 I T4b NX M0 I T4b(s) N0 M0 I T4b(s) N1a M0 I T4b(s) N1b M0 I T4b(s) N1NOS M0 I T4b(s) NX M0 I T4b(m) N0 M0 I T4b(m) N1a M0 I T4b(m) N1b M0 I T4b(m) N1NOS M0 I T4b(m) NX M0 I T4NOS N0 M0 I T4NOS N1a M0 I T4NOS N1b M0 I T4NOS N1NOS M0 I T4NOS NX M0 I T4NOS(s) N0 M0 I T4NOS(s) N1a M0 I T4NOS(s) N1b M0 I T4NOS(s) N1NOS M0 I T4NOS(s) NX M0 I T4NOS(m) N0 M0 I T4NOS(m) N1a M0 I T4NOS(m) N1b M0 I T4NOS(m) N1NOS M0 I T4NOS(m) NX M0 I TX N0 M0 I TX N1a M0 I TX N1b M0 I TX N1NOS M0 I TX NX M0 I T0 N0 M1 II T0 N1a M1 II T0 N1b M1 II T0 N1NOS M1 II T0 NX M1 II T1a N0 M1 II T1a N1a M1 II T1a N1b M1 II T1a N1NOS M1 II T1a NX M1 II T1a(s) N0 M1 II T1a(s) N1a M1 II T1a(s) N1b M1 II T1a(s) N1NOS M1 II T1a(s) NX M1 II T1a(m) N0 M1 II T1a(m) N1a M1 II T1a(m) N1b M1 II T1a(m) N1NOS M1 II T1a(m) NX M1 II T1b N0 M1 II T1b N1a M1 II T1b N1b M1 II T1b N1NOS M1 II T1b NX M1 II T1b(s) N0 M1 II T1b(s) N1a M1 II T1b(s) N1b M1 II T1b(s) N1NOS M1 II T1b(s) NX M1 II T1b(m) N0 M1 II T1b(m) N1a M1 II T1b(m) N1b M1 II T1b(m) N1NOS M1 II T1b(m) NX M1 II T1NOS N0 M1 II T1NOS N1a M1 II T1NOS N1b M1 II T1NOS N1NOS M1 II T1NOS NX M1 II T1NOS(s) N0 M1 II T1NOS(s) N1a M1 II T1NOS(s) N1b M1 II T1NOS(s) N1NOS M1 II T1NOS(s) NX M1 II T1NOS(m) N0 M1 II T1NOS(m) N1a M1 II T1NOS(m) N1b M1 II T1NOS(m) N1NOS M1 II T1NOS(m) NX M1 II T2 N0 M1 II T2 N1a M1 II T2 N1b M1 II T2 N1NOS M1 II T2 NX M1 II T2(s) N0 M1 II T2(s) N1a M1 II T2(s) N1b M1 II T2(s) N1NOS M1 II T2(s) NX M1 II T2(m) N0 M1 II T2(m) N1a M1 II T2(m) N1b M1 II T2(m) N1NOS M1 II T2(m) NX M1 II T3 N0 M1 II T3 N1a M1 II T3 N1b M1 II T3 N1NOS M1 II T3 NX M1 II T3(s) N0 M1 II T3(s) N1a M1 II T3(s) N1b M1 II T3(s) N1NOS M1 II T3(s) NX M1 II T3(m) N0 M1 II T3(m) N1a M1 II T3(m) N1b M1 II T3(m) N1NOS M1 II T3(m) NX M1 II T4a N0 M1 II T4a N1a M1 II T4a N1b M1 II T4a N1NOS M1 II T4a NX M1 II T4a(s) N0 M1 II T4a(s) N1a M1 II T4a(s) N1b M1 II T4a(s) N1NOS M1 II T4a(s) NX M1 II T4a(m) N0 M1 II T4a(m) N1a M1 II T4a(m) N1b M1 II T4a(m) N1NOS M1 II T4a(m) NX M1 II T4b N0 M1 II T4b N1a M1 II T4b N1b M1 II T4b N1NOS M1 II T4b NX M1 II T4b(s) N0 M1 II T4b(s) N1a M1 II T4b(s) N1b M1 II T4b(s) N1NOS M1 II T4b(s) NX M1 II T4b(m) N0 M1 II T4b(m) N1a M1 II T4b(m) N1b M1 II T4b(m) N1NOS M1 II T4b(m) NX M1 II T4NOS N0 M1 II T4NOS N1a M1 II T4NOS N1b M1 II T4NOS N1NOS M1 II T4NOS NX M1 II T4NOS(s) N0 M1 II T4NOS(s) N1a M1 II T4NOS(s) N1b M1 II T4NOS(s) N1NOS M1 II T4NOS(s) NX M1 II T4NOS(m) N0 M1 II T4NOS(m) N1a M1 II T4NOS(m) N1b M1 II T4NOS(m) N1NOS M1 II T4NOS(m) NX M1 II TX N0 M1 II TX N1a M1 II TX N1b M1 II TX N1NOS M1 II TX NX M1 II AJCC TNM 6 Stage-Thyroid: Papillary and Follicular Age less than 45 T N M Stage T0 N0 M0 ERROR T0 N1NOS M0 I T0 N1a M0 I T0 N1b M0 I T0 NX M0 I T0 N0 M1 II T0 N1NOS M1 II T0 N1a M1 II T0 N1b M1 II T0 NX M1 II T0 N0 MX UNK T0 N1NOS MX UNK T0 N1a MX UNK T0 N1b MX UNK T0 NX MX UNK T1 N0 M0 I T1 N1NOS M0 I T1 N1a M0 I T1 N1b M0 I T1 NX M0 I T1 N0 M1 II T1 N1NOS M1 II T1 N1a M1 II T1 N1b M1 II T1 NX M1 II T1 N0 MX UNK T1 N1NOS MX UNK T1 N1a MX UNK T1 N1b MX UNK T1 NX MX UNK T2 N0 M0 I T2 N1NOS M0 I T2 N1a M0 I T2 N1b M0 I T2 NX M0 I T2 N0 M1 II T2 N1NOS M1 II T2 N1a M1 II T2 N1b M1 II T2 NX M1 II T2 N0 MX UNK T2 N1NOS MX UNK T2 N1a MX UNK T2 N1b MX UNK T2 NX MX UNK T3 N0 M0 I T3 N1NOS M0 I T3 N1a M0 I T3 N1b M0 I T3 NX M0 I T3 N0 M1 II T3 N1NOS M1 II T3 N1a M1 II T3 N1b M1 II T3 NX M1 II T3 N0 MX UNK T3 N1NOS MX UNK T3 N1a MX UNK T3 N1b MX UNK T3 NX MX UNK T4NOS N0 M0 I T4NOS N1NOS M0 I T4NOS N1a M0 I T4NOS N1b M0 I T4NOS NX M0 I T4NOS N0 M1 II T4NOS N1NOS M1 II T4NOS N1a M1 II T4NOS N1b M1 II T4NOS NX M1 II T4NOS N0 MX UNK T4NOS N1NOS MX UNK T4NOS N1a MX UNK T4NOS N1b MX UNK T4NOS NX MX UNK T4a N0 M0 I T4a N1NOS M0 I T4a N1a M0 I T4a N1b M0 I T4a NX M0 I T4a N0 M1 II T4a N1NOS M1 II T4a N1a M1 II T4a N1b M1 II T4a NX M1 II T4a N0 MX UNK T4a N1NOS MX UNK T4a N1a MX UNK T4a N1b MX UNK T4a NX MX UNK T4b N0 M0 I T4b N1NOS M0 I T4b N1a M0 I T4b N1b M0 I T4b NX M0 I T4b N0 M1 II T4b N1NOS M1 II T4b N1a M1 II T4b N1b M1 II T4b NX M1 II T4b N0 MX UNK T4b N1NOS MX UNK T4b N1a MX UNK T4b N1b MX UNK T4b NX MX UNK TX N0 M0 I TX N1NOS M0 I TX N1a M0 I TX N1b M0 I TX NX M0 I TX N0 M1 II TX N1NOS M1 II TX N1a M1 II TX N1b M1 II TX NX M1 II TX N0 MX UNK TX N1NOS MX UNK TX N1a MX UNK TX N1b MX UNK TX NX MX UNK &commonsummarystage; AJCC TNM 7 Stage-Thyroid: Papillary and Follicular Age 45 and Older T N M Stage T0 N0 M0 ERROR T0 N1a M0 UNK T0 N1b M0 IVA T0 N1NOS M0 UNK T0 NX M0 UNK T1a N0 M0 I T1a N1a M0 III T1a N1b M0 IVA T1a N1NOS M0 UNK T1a NX M0 UNK T1a(s) N0 M0 I T1a(s) N1a M0 III T1a(s) N1b M0 IVA T1a(s) N1NOS M0 UNK T1a(s) NX M0 UNK T1a(m) N0 M0 I T1a(m) N1a M0 III T1a(m) N1b M0 IVA T1a(m) N1NOS M0 UNK T1a(m) NX M0 UNK T1b N0 M0 I T1b N1a M0 III T1b N1b M0 IVA T1b N1NOS M0 UNK T1b NX M0 UNK T1b(s) N0 M0 I T1b(s) N1a M0 III T1b(s) N1b M0 IVA T1b(s) N1NOS M0 UNK T1b(s) NX M0 UNK T1b(m) N0 M0 I T1b(m) N1a M0 III T1b(m) N1b M0 IVA T1b(m) N1NOS M0 UNK T1b(m) NX M0 UNK T1NOS N0 M0 I T1NOS N1a M0 III T1NOS N1b M0 IVA T1NOS N1NOS M0 UNK T1NOS NX M0 UNK T1NOS(s) N0 M0 I T1NOS(s) N1a M0 III T1NOS(s) N1b M0 IVA T1NOS(s) N1NOS M0 UNK T1NOS(s) NX M0 UNK T1NOS(m) N0 M0 I T1NOS(m) N1a M0 III T1NOS(m) N1b M0 IVA T1NOS(m) N1NOS M0 UNK T1NOS(m) NX M0 UNK T2 N0 M0 II T2 N1a M0 III T2 N1b M0 IVA T2 N1NOS M0 UNK T2 NX M0 UNK T2(s) N0 M0 II T2(s) N1a M0 III T2(s) N1b M0 IVA T2(s) N1NOS M0 UNK T2(s) NX M0 UNK T2(m) N0 M0 II T2(m) N1a M0 III T2(m) N1b M0 IVA T2(m) N1NOS M0 UNK T2(m) NX M0 UNK T3 N0 M0 III T3 N1a M0 III T3 N1b M0 IVA T3 N1NOS M0 UNK T3 NX M0 UNK T3(s) N0 M0 III T3(s) N1a M0 III T3(s) N1b M0 IVA T3(s) N1NOS M0 UNK T3(s) NX M0 UNK T3(m) N0 M0 III T3(m) N1a M0 III T3(m) N1b M0 IVA T3(m) N1NOS M0 UNK T3(m) NX M0 UNK T4a N0 M0 IVA T4a N1a M0 IVA T4a N1b M0 IVA T4a N1NOS M0 IVA T4a NX M0 IVA T4a(s) N0 M0 IVA T4a(s) N1a M0 IVA T4a(s) N1b M0 IVA T4a(s) N1NOS M0 IVA T4a(s) NX M0 IVA T4a(m) N0 M0 IVA T4a(m) N1a M0 IVA T4a(m) N1b M0 IVA T4a(m) N1NOS M0 IVA T4a(m) NX M0 IVA T4b N0 M0 IVB T4b N1a M0 IVB T4b N1b M0 IVB T4b N1NOS M0 IVB T4b NX M0 IVB T4b(s) N0 M0 IVB T4b(s) N1a M0 IVB T4b(s) N1b M0 IVB T4b(s) N1NOS M0 IVB T4b(s) NX M0 IVB T4b(m) N0 M0 IVB T4b(m) N1a M0 IVB T4b(m) N1b M0 IVB T4b(m) N1NOS M0 IVB T4b(m) NX M0 IVB T4NOS N0 M0 IVNOS T4NOS N1a M0 IVNOS T4NOS N1b M0 IVNOS T4NOS N1NOS M0 IVNOS T4NOS NX M0 IVNOS T4NOS(s) N0 M0 IVNOS T4NOS(s) N1a M0 IVNOS T4NOS(s) N1b M0 IVNOS T4NOS(s) N1NOS M0 IVNOS T4NOS(s) NX M0 IVNOS T4NOS(m) N0 M0 IVNOS T4NOS(m) N1a M0 IVNOS T4NOS(m) N1b M0 IVNOS T4NOS(m) N1NOS M0 IVNOS T4NOS(m) NX M0 IVNOS TX N0 M0 UNK TX N1a M0 UNK TX N1b M0 IVNOS TX N1NOS M0 UNK TX NX M0 UNK T0 N0 M1 IVC T0 N1a M1 IVC T0 N1b M1 IVC T0 N1NOS M1 IVC T0 NX M1 IVC T1a N0 M1 IVC T1a N1a M1 IVC T1a N1b M1 IVC T1a N1NOS M1 IVC T1a NX M1 IVC T1a(s) N0 M1 IVC T1a(s) N1a M1 IVC T1a(s) N1b M1 IVC T1a(s) N1NOS M1 IVC T1a(s) NX M1 IVC T1a(m) N0 M1 IVC T1a(m) N1a M1 IVC T1a(m) N1b M1 IVC T1a(m) N1NOS M1 IVC T1a(m) NX M1 IVC T1b N0 M1 IVC T1b N1a M1 IVC T1b N1b M1 IVC T1b N1NOS M1 IVC T1b NX M1 IVC T1b(s) N0 M1 IVC T1b(s) N1a M1 IVC T1b(s) N1b M1 IVC T1b(s) N1NOS M1 IVC T1b(s) NX M1 IVC T1b(m) N0 M1 IVC T1b(m) N1a M1 IVC T1b(m) N1b M1 IVC T1b(m) N1NOS M1 IVC T1b(m) NX M1 IVC T1NOS N0 M1 IVC T1NOS N1a M1 IVC T1NOS N1b M1 IVC T1NOS N1NOS M1 IVC T1NOS NX M1 IVC T1NOS(s) N0 M1 IVC T1NOS(s) N1a M1 IVC T1NOS(s) N1b M1 IVC T1NOS(s) N1NOS M1 IVC T1NOS(s) NX M1 IVC T1NOS(m) N0 M1 IVC T1NOS(m) N1a M1 IVC T1NOS(m) N1b M1 IVC T1NOS(m) N1NOS M1 IVC T1NOS(m) NX M1 IVC T2 N0 M1 IVC T2 N1a M1 IVC T2 N1b M1 IVC T2 N1NOS M1 IVC T2 NX M1 IVC T2(s) N0 M1 IVC T2(s) N1a M1 IVC T2(s) N1b M1 IVC T2(s) N1NOS M1 IVC T2(s) NX M1 IVC T2(m) N0 M1 IVC T2(m) N1a M1 IVC T2(m) N1b M1 IVC T2(m) N1NOS M1 IVC T2(m) NX M1 IVC T3 N0 M1 IVC T3 N1a M1 IVC T3 N1b M1 IVC T3 N1NOS M1 IVC T3 NX M1 IVC T3(s) N0 M1 IVC T3(s) N1a M1 IVC T3(s) N1b M1 IVC T3(s) N1NOS M1 IVC T3(s) NX M1 IVC T3(m) N0 M1 IVC T3(m) N1a M1 IVC T3(m) N1b M1 IVC T3(m) N1NOS M1 IVC T3(m) NX M1 IVC T4a N0 M1 IVC T4a N1a M1 IVC T4a N1b M1 IVC T4a N1NOS M1 IVC T4a NX M1 IVC T4a(s) N0 M1 IVC T4a(s) N1a M1 IVC T4a(s) N1b M1 IVC T4a(s) N1NOS M1 IVC T4a(s) NX M1 IVC T4a(m) N0 M1 IVC T4a(m) N1a M1 IVC T4a(m) N1b M1 IVC T4a(m) N1NOS M1 IVC T4a(m) NX M1 IVC T4b N0 M1 IVC T4b N1a M1 IVC T4b N1b M1 IVC T4b N1NOS M1 IVC T4b NX M1 IVC T4b(s) N0 M1 IVC T4b(s) N1a M1 IVC T4b(s) N1b M1 IVC T4b(s) N1NOS M1 IVC T4b(s) NX M1 IVC T4b(m) N0 M1 IVC T4b(m) N1a M1 IVC T4b(m) N1b M1 IVC T4b(m) N1NOS M1 IVC T4b(m) NX M1 IVC T4NOS N0 M1 IVC T4NOS N1a M1 IVC T4NOS N1b M1 IVC T4NOS N1NOS M1 IVC T4NOS NX M1 IVC T4NOS(s) N0 M1 IVC T4NOS(s) N1a M1 IVC T4NOS(s) N1b M1 IVC T4NOS(s) N1NOS M1 IVC T4NOS(s) NX M1 IVC T4NOS(m) N0 M1 IVC T4NOS(m) N1a M1 IVC T4NOS(m) N1b M1 IVC T4NOS(m) N1NOS M1 IVC T4NOS(m) NX M1 IVC TX N0 M1 IVC TX N1a M1 IVC TX N1b M1 IVC TX N1NOS M1 IVC TX NX M1 IVC AJCC TNM 6 Stage-Thyroid: Papillary and Follicular Age 45 and Older T N M Stage T0 N0 M0 ERROR T0 N1NOS M0 UNK T0 N1a M0 III T0 N1b M0 IVA T0 NX M0 UNK T0 N0 M1 IVC T0 N1NOS M1 IVC T0 N1a M1 IVC T0 N1b M1 IVC T0 NX M1 IVC T0 N0 MX UNK T0 N1NOS MX UNK T0 N1a MX UNK T0 N1b MX IVNOS T0 NX MX UNK T1 N0 M0 I T1 N1NOS M0 UNK T1 N1a M0 III T1 N1b M0 IVA T1 NX M0 UNK T1 N0 M1 IVC T1 N1NOS M1 IVC T1 N1a M1 IVC T1 N1b M1 IVC T1 NX M1 IVC T1 N0 MX UNK T1 N1NOS MX UNK T1 N1a MX UNK T1 N1b MX IVNOS T1 NX MX UNK T2 N0 M0 II T2 N1NOS M0 UNK T2 N1a M0 III T2 N1b M0 IVA T2 NX M0 UNK T2 N0 M1 IVC T2 N1NOS M1 IVC T2 N1a M1 IVC T2 N1b M1 IVC T2 NX M1 IVC T2 N0 MX UNK T2 N1NOS MX UNK T2 N1a MX UNK T2 N1b MX IVNOS T2 NX MX UNK T3 N0 M0 III T3 N1NOS M0 UNK T3 N1a M0 III T3 N1b M0 IVA T3 NX M0 UNK T3 N0 M1 IVC T3 N1NOS M1 IVC T3 N1a M1 IVC T3 N1b M1 IVC T3 NX M1 IVC T3 N0 MX UNK T3 N1NOS MX UNK T3 N1a MX UNK T3 N1b MX IVNOS T3 NX MX UNK T4NOS N0 M0 IVNOS T4NOS N1NOS M0 IVNOS T4NOS N1a M0 IVNOS T4NOS N1b M0 IVNOS T4NOS NX M0 IVNOS T4NOS N0 M1 IVC T4NOS N1NOS M1 IVC T4NOS N1a M1 IVC T4NOS N1b M1 IVC T4NOS NX M1 IVC T4NOS N0 MX IVNOS T4NOS N1NOS MX IVNOS T4NOS N1a MX IVNOS T4NOS N1b MX IVNOS T4NOS NX MX IVNOS T4a N0 M0 IVA T4a N1NOS M0 IVA T4a N1a M0 IVA T4a N1b M0 IVA T4a NX M0 IVA T4a N0 M1 IVC T4a N1NOS M1 IVC T4a N1a M1 IVC T4a N1b M1 IVC T4a NX M1 IVC T4a N0 MX IVNOS T4a N1NOS MX IVNOS T4a N1a MX IVNOS T4a N1b MX IVNOS T4a NX MX IVNOS T4b N0 M0 IVB T4b N1NOS M0 IVB T4b N1a M0 IVB T4b N1b M0 IVB T4b NX M0 IVB T4b N0 M1 IVC T4b N1NOS M1 IVC T4b N1a M1 IVC T4b N1b M1 IVC T4b NX M1 IVC T4b N0 MX IVNOS T4b N1NOS MX IVNOS T4b N1a MX IVNOS T4b N1b MX IVNOS T4b NX MX IVNOS TX N0 M0 UNK TX N1NOS M0 UNK TX N1a M0 UNK TX N1b M0 IVNOS TX NX M0 UNK TX N0 M1 IVC TX N1NOS M1 IVC TX N1a M1 IVC TX N1b M1 IVC TX NX M1 IVC TX N0 MX UNK TX N1NOS MX UNK TX N1a MX UNK TX N1b MX IVNOS TX NX MX UNK AJCC TNM 7 Stage-Thyroid: Medullary T N M Stage T0 N0 M0 ERROR T0 N1a M0 UNK T0 N1b M0 IVA T0 N1NOS M0 UNK T0 NX M0 UNK T1a N0 M0 I T1a N1a M0 III T1a N1b M0 IVA T1a N1NOS M0 UNK T1a NX M0 UNK T1a(s) N0 M0 I T1a(s) N1a M0 III T1a(s) N1b M0 IVA T1a(s) N1NOS M0 UNK T1a(s) NX M0 UNK T1a(m) N0 M0 I T1a(m) N1a M0 III T1a(m) N1b M0 IVA T1a(m) N1NOS M0 UNK T1a(m) NX M0 UNK T1b N0 M0 I T1b N1a M0 III T1b N1b M0 IVA T1b N1NOS M0 UNK T1b NX M0 UNK T1b(s) N0 M0 I T1b(s) N1a M0 III T1b(s) N1b M0 IVA T1b(s) N1NOS M0 UNK T1b(s) NX M0 UNK T1b(m) N0 M0 I T1b(m) N1a M0 III T1b(m) N1b M0 IVA T1b(m) N1NOS M0 UNK T1b(m) NX M0 UNK T1NOS N0 M0 I T1NOS N1a M0 III T1NOS N1b M0 IVA T1NOS N1NOS M0 UNK T1NOS NX M0 UNK T1NOS(s) N0 M0 I T1NOS(s) N1a M0 III T1NOS(s) N1b M0 IVA T1NOS(s) N1NOS M0 UNK T1NOS(s) NX M0 UNK T1NOS(m) N0 M0 I T1NOS(m) N1a M0 III T1NOS(m) N1b M0 IVA T1NOS(m) N1NOS M0 UNK T1NOS(m) NX M0 UNK T2 N0 M0 II T2 N1a M0 III T2 N1b M0 IVA T2 N1NOS M0 UNK T2 NX M0 UNK T2(s) N0 M0 II T2(s) N1a M0 III T2(s) N1b M0 IVA T2(s) N1NOS M0 UNK T2(s) NX M0 UNK T2(m) N0 M0 II T2(m) N1a M0 III T2(m) N1b M0 IVA T2(m) N1NOS M0 UNK T2(m) NX M0 UNK T3 N0 M0 II T3 N1a M0 III T3 N1b M0 IVA T3 N1NOS M0 UNK T3 NX M0 UNK T3(s) N0 M0 II T3(s) N1a M0 III T3(s) N1b M0 IVA T3(s) N1NOS M0 UNK T3(s) NX M0 UNK T3(m) N0 M0 II T3(m) N1a M0 III T3(m) N1b M0 IVA T3(m) N1NOS M0 UNK T3(m) NX M0 UNK T4a N0 M0 IVA T4a N1a M0 IVA T4a N1b M0 IVA T4a N1NOS M0 IVA T4a NX M0 IVA T4a(s) N0 M0 IVA T4a(s) N1a M0 IVA T4a(s) N1b M0 IVA T4a(s) N1NOS M0 IVA T4a(s) NX M0 IVA T4a(m) N0 M0 IVA T4a(m) N1a M0 IVA T4a(m) N1b M0 IVA T4a(m) N1NOS M0 IVA T4a(m) NX M0 IVA T4b N0 M0 IVB T4b N1a M0 IVB T4b N1b M0 IVB T4b N1NOS M0 IVB T4b NX M0 IVB T4b(s) N0 M0 IVB T4b(s) N1a M0 IVB T4b(s) N1b M0 IVB T4b(s) N1NOS M0 IVB T4b(s) NX M0 IVB T4b(m) N0 M0 IVB T4b(m) N1a M0 IVB T4b(m) N1b M0 IVB T4b(m) N1NOS M0 IVB T4b(m) NX M0 IVB T4NOS N0 M0 IVNOS T4NOS N1a M0 IVNOS T4NOS N1b M0 IVNOS T4NOS N1NOS M0 IVNOS T4NOS NX M0 IVNOS T4NOS(s) N0 M0 IVNOS T4NOS(s) N1a M0 IVNOS T4NOS(s) N1b M0 IVNOS T4NOS(s) N1NOS M0 IVNOS T4NOS(s) NX M0 IVNOS T4NOS(m) N0 M0 IVNOS T4NOS(m) N1a M0 IVNOS T4NOS(m) N1b M0 IVNOS T4NOS(m) N1NOS M0 IVNOS T4NOS(m) NX M0 IVNOS TX N0 M0 UNK TX N1a M0 UNK TX N1b M0 IVNOS TX N1NOS M0 UNK TX NX M0 UNK T0 N0 M1 IVC T0 N1a M1 IVC T0 N1b M1 IVC T0 N1NOS M1 IVC T0 NX M1 IVC T1a N0 M1 IVC T1a N1a M1 IVC T1a N1b M1 IVC T1a N1NOS M1 IVC T1a NX M1 IVC T1a(s) N0 M1 IVC T1a(s) N1a M1 IVC T1a(s) N1b M1 IVC T1a(s) N1NOS M1 IVC T1a(s) NX M1 IVC T1a(m) N0 M1 IVC T1a(m) N1a M1 IVC T1a(m) N1b M1 IVC T1a(m) N1NOS M1 IVC T1a(m) NX M1 IVC T1b N0 M1 IVC T1b N1a M1 IVC T1b N1b M1 IVC T1b N1NOS M1 IVC T1b NX M1 IVC T1b(s) N0 M1 IVC T1b(s) N1a M1 IVC T1b(s) N1b M1 IVC T1b(s) N1NOS M1 IVC T1b(s) NX M1 IVC T1b(m) N0 M1 IVC T1b(m) N1a M1 IVC T1b(m) N1b M1 IVC T1b(m) N1NOS M1 IVC T1b(m) NX M1 IVC T1NOS N0 M1 IVC T1NOS N1a M1 IVC T1NOS N1b M1 IVC T1NOS N1NOS M1 IVC T1NOS NX M1 IVC T1NOS(s) N0 M1 IVC T1NOS(s) N1a M1 IVC T1NOS(s) N1b M1 IVC T1NOS(s) N1NOS M1 IVC T1NOS(s) NX M1 IVC T1NOS(m) N0 M1 IVC T1NOS(m) N1a M1 IVC T1NOS(m) N1b M1 IVC T1NOS(m) N1NOS M1 IVC T1NOS(m) NX M1 IVC T2 N0 M1 IVC T2 N1a M1 IVC T2 N1b M1 IVC T2 N1NOS M1 IVC T2 NX M1 IVC T2(s) N0 M1 IVC T2(s) N1a M1 IVC T2(s) N1b M1 IVC T2(s) N1NOS M1 IVC T2(s) NX M1 IVC T2(m) N0 M1 IVC T2(m) N1a M1 IVC T2(m) N1b M1 IVC T2(m) N1NOS M1 IVC T2(m) NX M1 IVC T3 N0 M1 IVC T3 N1a M1 IVC T3 N1b M1 IVC T3 N1NOS M1 IVC T3 NX M1 IVC T3(s) N0 M1 IVC T3(s) N1a M1 IVC T3(s) N1b M1 IVC T3(s) N1NOS M1 IVC T3(s) NX M1 IVC T3(m) N0 M1 IVC T3(m) N1a M1 IVC T3(m) N1b M1 IVC T3(m) N1NOS M1 IVC T3(m) NX M1 IVC T4a N0 M1 IVC T4a N1a M1 IVC T4a N1b M1 IVC T4a N1NOS M1 IVC T4a NX M1 IVC T4a(s) N0 M1 IVC T4a(s) N1a M1 IVC T4a(s) N1b M1 IVC T4a(s) N1NOS M1 IVC T4a(s) NX M1 IVC T4a(m) N0 M1 IVC T4a(m) N1a M1 IVC T4a(m) N1b M1 IVC T4a(m) N1NOS M1 IVC T4a(m) NX M1 IVC T4b N0 M1 IVC T4b N1a M1 IVC T4b N1b M1 IVC T4b N1NOS M1 IVC T4b NX M1 IVC T4b(s) N0 M1 IVC T4b(s) N1a M1 IVC T4b(s) N1b M1 IVC T4b(s) N1NOS M1 IVC T4b(s) NX M1 IVC T4b(m) N0 M1 IVC T4b(m) N1a M1 IVC T4b(m) N1b M1 IVC T4b(m) N1NOS M1 IVC T4b(m) NX M1 IVC T4NOS N0 M1 IVC T4NOS N1a M1 IVC T4NOS N1b M1 IVC T4NOS N1NOS M1 IVC T4NOS NX M1 IVC T4NOS(s) N0 M1 IVC T4NOS(s) N1a M1 IVC T4NOS(s) N1b M1 IVC T4NOS(s) N1NOS M1 IVC T4NOS(s) NX M1 IVC T4NOS(m) N0 M1 IVC T4NOS(m) N1a M1 IVC T4NOS(m) N1b M1 IVC T4NOS(m) N1NOS M1 IVC T4NOS(m) NX M1 IVC TX N0 M1 IVC TX N1a M1 IVC TX N1b M1 IVC TX N1NOS M1 IVC TX NX M1 IVC AJCC TNM 6 Stage-Thyroid: Medullary T N M Stage T0 N0 M0 ERROR T0 N1NOS M0 UNK T0 N1a M0 III T0 N1b M0 IVA T0 NX M0 UNK T0 N0 M1 IVC T0 N1NOS M1 IVC T0 N1a M1 IVC T0 N1b M1 IVC T0 NX M1 IVC T0 N0 MX UNK T0 N1NOS MX UNK T0 N1a MX UNK T0 N1b MX IVNOS T0 NX MX UNK T1 N0 M0 I T1 N1NOS M0 UNK T1 N1a M0 III T1 N1b M0 IVA T1 NX M0 UNK T1 N0 M1 IVC T1 N1NOS M1 IVC T1 N1a M1 IVC T1 N1b M1 IVC T1 NX M1 IVC T1 N0 MX UNK T1 N1NOS MX UNK T1 N1a MX UNK T1 N1b MX IVNOS T1 NX MX UNK T2 N0 M0 II T2 N1NOS M0 UNK T2 N1a M0 III T2 N1b M0 IVA T2 NX M0 UNK T2 N0 M1 IVC T2 N1NOS M1 IVC T2 N1a M1 IVC T2 N1b M1 IVC T2 NX M1 IVC T2 N0 MX UNK T2 N1NOS MX UNK T2 N1a MX UNK T2 N1b MX IVNOS T2 NX MX UNK T3 N0 M0 II T3 N1NOS M0 UNK T3 N1a M0 III T3 N1b M0 IVA T3 NX M0 UNK T3 N0 M1 IVC T3 N1NOS M1 IVC T3 N1a M1 IVC T3 N1b M1 IVC T3 NX M1 IVC T3 N0 MX UNK T3 N1NOS MX UNK T3 N1a MX UNK T3 N1b MX IVB T3 NX MX UNK T4NOS N0 M0 IVNOS T4NOS N1NOS M0 IVNOS T4NOS N1a M0 IVNOS T4NOS N1b M0 IVNOS T4NOS NX M0 IVNOS T4NOS N0 M1 IVC T4NOS N1NOS M1 IVC T4NOS N1a M1 IVC T4NOS N1b M1 IVC T4NOS NX M1 IVC T4NOS N0 MX IVNOS T4NOS N1NOS MX IVNOS T4NOS N1a MX IVNOS T4NOS N1b MX IVNOS T4NOS NX MX IVNOS T4a N0 M0 IVA T4a N1NOS M0 IVA T4a N1a M0 IVA T4a N1b M0 IVA T4a NX M0 IVA T4a N0 M1 IVC T4a N1NOS M1 IVC T4a N1a M1 IVC T4a N1b M1 IVC T4a NX M1 IVC T4a N0 MX IVNOS T4a N1NOS MX IVNOS T4a N1a MX IVNOS T4a N1b MX IVNOS T4a NX MX IVNOS T4b N0 M0 IVB T4b N1NOS M0 IVB T4b N1a M0 IVB T4b N1b M0 IVB T4b NX M0 IVB T4b N0 M1 IVC T4b N1NOS M1 IVC T4b N1a M1 IVC T4b N1b M1 IVC T4b NX M1 IVC T4b N0 MX IVNOS T4b N1NOS MX IVNOS T4b N1a MX IVNOS T4b N1b MX IVNOS T4b NX MX IVNOS TX N0 M0 UNK TX N1NOS M0 UNK TX N1a M0 UNK TX N1b M0 IVNOS TX NX M0 UNK TX N0 M1 IVC TX N1NOS M1 IVC TX N1a M1 IVC TX N1b M1 IVC TX NX M1 IVC TX N0 MX UNK TX N1NOS MX UNK TX N1a MX UNK TX N1b MX IVNOS TX NX MX UNK AJCC TNM 7 Stage-Thyroid: Anaplastic T N M Stage T4a N0 M0 IVA T4a N1a M0 IVA T4a N1b M0 IVA T4a N1NOS M0 IVA T4a NX M0 IVA T4a(s) N0 M0 IVA T4a(s) N1a M0 IVA T4a(s) N1b M0 IVA T4a(s) N1NOS M0 IVA T4a(s) NX M0 IVA T4a(m) N0 M0 IVA T4a(m) N1a M0 IVA T4a(m) N1b M0 IVA T4a(m) N1NOS M0 IVA T4a(m) NX M0 IVA T4b N0 M0 IVB T4b N1a M0 IVB T4b N1b M0 IVB T4b N1NOS M0 IVB T4b NX M0 IVB T4b(s) N0 M0 IVB T4b(s) N1a M0 IVB T4b(s) N1b M0 IVB T4b(s) N1NOS M0 IVB T4b(s) NX M0 IVB T4b(m) N0 M0 IVB T4b(m) N1a M0 IVB T4b(m) N1b M0 IVB T4b(m) N1NOS M0 IVB T4b(m) NX M0 IVB T4NOS N0 M0 IVNOS T4NOS N1a M0 IVNOS T4NOS N1b M0 IVNOS T4NOS N1NOS M0 IVNOS T4NOS NX M0 IVNOS T4NOS(s) N0 M0 IVNOS T4NOS(s) N1a M0 IVNOS T4NOS(s) N1b M0 IVNOS T4NOS(s) N1NOS M0 IVNOS T4NOS(s) NX M0 IVNOS T4NOS(m) N0 M0 IVNOS T4NOS(m) N1a M0 IVNOS T4NOS(m) N1b M0 IVNOS T4NOS(m) N1NOS M0 IVNOS T4NOS(m) NX M0 IVNOS T4a N0 M1 IVC T4a N1a M1 IVC T4a N1b M1 IVC T4a N1NOS M1 IVC T4a NX M1 IVC T4a(s) N0 M1 IVC T4a(s) N1a M1 IVC T4a(s) N1b M1 IVC T4a(s) N1NOS M1 IVC T4a(s) NX M1 IVC T4a(m) N0 M1 IVC T4a(m) N1a M1 IVC T4a(m) N1b M1 IVC T4a(m) N1NOS M1 IVC T4a(m) NX M1 IVC T4b N0 M1 IVC T4b N1a M1 IVC T4b N1b M1 IVC T4b N1NOS M1 IVC T4b NX M1 IVC T4b(s) N0 M1 IVC T4b(s) N1a M1 IVC T4b(s) N1b M1 IVC T4b(s) N1NOS M1 IVC T4b(s) NX M1 IVC T4b(m) N0 M1 IVC T4b(m) N1a M1 IVC T4b(m) N1b M1 IVC T4b(m) N1NOS M1 IVC T4b(m) NX M1 IVC T4NOS N0 M1 IVC T4NOS N1a M1 IVC T4NOS N1b M1 IVC T4NOS N1NOS M1 IVC T4NOS NX M1 IVC T4NOS(s) N0 M1 IVC T4NOS(s) N1a M1 IVC T4NOS(s) N1b M1 IVC T4NOS(s) N1NOS M1 IVC T4NOS(s) NX M1 IVC T4NOS(m) N0 M1 IVC T4NOS(m) N1a M1 IVC T4NOS(m) N1b M1 IVC T4NOS(m) N1NOS M1 IVC T4NOS(m) NX M1 IVC AJCC TNM 6 Stage-Thyroid: Anaplastic T N M Stage T4a N0 M0 IVA T4a N1a M0 IVA T4a N1b M0 IVA T4a N1NOS M0 IVA T4a NX M0 IVA T4b N0 M0 IVB T4b N1a M0 IVB T4b N1b M0 IVB T4b N1NOS M0 IVB T4b NX M0 IVB T4NOS N0 M0 IVNOS T4NOS N1a M0 IVNOS T4NOS N1b M0 IVNOS T4NOS N1NOS M0 IVNOS T4NOS NX M0 IVNOS T4a N0 M1 IVC T4a N1a M1 IVC T4a N1b M1 IVC T4a N1NOS M1 IVC T4a NX M1 IVC T4b N0 M1 IVC T4b N1a M1 IVC T4b N1b M1 IVC T4b N1NOS M1 IVC T4b NX M1 IVC T4NOS N0 M1 IVC T4NOS N1a M1 IVC T4NOS N1b M1 IVC T4NOS N1NOS M1 IVC T4NOS NX M1 IVC T4a N0 MX IVNOS T4a N1a MX IVNOS T4a N1b MX IVNOS T4a N1NOS MX IVNOS T4a NX MX IVNOS T4b N0 MX IVNOS T4b N1a MX IVNOS T4b N1b MX IVNOS T4b N1NOS MX IVNOS T4b NX MX IVNOS T4NOS N0 MX IVNOS T4NOS N1a MX IVNOS T4NOS N1b MX IVNOS T4NOS N1NOS MX IVNOS T4NOS NX MX IVNOS Extension Size SSF 1 AJCC 7 Table CS Site-Specific Factor 1 CS Extension CS Tumor Size 000-000 0 CS Tumor Size 001-010 1 10 CS Tumor Size 011-020 11 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 999 999 001, 002 000-999 ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR 000, 988, 999 000 ERROR TX TX TX TX TX TX TX TX TX TX 000, 988, 999 100 ERROR T1a T1b T2 T3 T1a T1b T2 T3 T3 TX 000, 988, 999 200 ERROR T1a T1b T2 T3 T1a T1b T2 T3 T3 TX 000, 988, 999 300 ERROR T1a T1b T2 T3 T1a T1b T2 T3 T3 TX 000, 988, 999 400 ERROR T1a T1b T2 T3 T1a T1b T2 T3 T3 TX 000, 988, 999 405 ERROR T1a T1b T2 T3 T1a T1a T1a T1a T3 T1a 000, 988, 999 410 ERROR T1a T1b T2 T3 T1a T1b T1b T1b T3 T1b 000, 988, 999 415 ERROR T1a T1b T2 T3 T1a T1NOS T1NOS T1NOS T3 T1NOS 000, 988, 999 420 ERROR T1a T1b T2 T3 T1a T2 T2 T2 T3 T2 000, 988, 999 450 ERROR T3 T3 T3 T3 T3 T3 T3 T3 T3 T3 000, 988, 999 480 ERROR T3 T3 T3 T3 T3 T3 T3 T3 T3 T3 000, 988, 999 490 ERROR T3 T3 T3 T3 T3 T3 T3 T3 T3 T3 000, 988, 999 500 ERROR T4a T4a T4a T4a T4a T4a T4a T4a T4a T4a 000, 988, 999 520 ERROR T4a T4a T4a T4a T4a T4a T4a T4a T4a T4a 000, 988, 999 550 ERROR T4a T4a T4a T4a T4a T4a T4a T4a T4a T4a 000, 988, 999 950 T0 ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR 000, 988, 999 999 ERROR TX TX TX TX TX TX TX TX TX TX 010 000 ERROR TX TX TX TX TX TX TX TX TX TX 010 100 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1b(s) T2(s) T3(s) T3(s) TX 010 200 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1b(s) T2(s) T3(s) T3(s) TX 010 300 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1b(s) T2(s) T3(s) T3(s) TX 010 400 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1b(s) T2(s) T3(s) T3(s) TX 010 405 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1a(s) T1a(s) T1a(s) T3(s) T1a(s) 010 410 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1b(s) T1b(s) T1b(s) T3(s) T1b(s) 010 415 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T1NOS(s) T1NOS(s) T1NOS(s) T3(s) T1NOS(s) 010 420 ERROR T1a(s) T1b(s) T2(s) T3(s) T1a(s) T2(s) T2(s) T2(s) T3(s) T2(s) 010 450 ERROR T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) 010 480 ERROR T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) 010 490 ERROR T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) T3(s) 010 500 ERROR T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) 010 520 ERROR T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) 010 550 ERROR T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) T4a(s) 010 950 T0 ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR 010 999 ERROR TX TX TX TX TX TX TX TX TX TX 020 000 ERROR TX TX TX TX TX TX TX TX TX TX 020 100 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1b(m) T2(m) T3(m) T3(m) TX 020 200 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1b(m) T2(m) T3(m) T3(m) TX 020 300 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1b(m) T2(m) T3(m) T3(m) TX 020 400 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1b(m) T2(m) T3(m) T3(m) TX 020 405 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1a(m) T1a(m) T1a(m) T3(m) T1a(m) 020 410 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1b(m) T1b(m) T1b(m) T3(m) T1b(m) 020 415 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T1NOS(m) T1NOS(m) T1NOS(m) T3(m) T1NOS(m) 020 420 ERROR T1a(m) T1b(m) T2(m) T3(m) T1a(m) T2(m) T2(m) T2(m) T3(m) T2(m) 020 450 ERROR T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) 020 480 ERROR T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) 020 490 ERROR T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) T3(m) 020 500 ERROR T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) 020 520 ERROR T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) 020 550 ERROR T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) T4a(m) 020 950 T0 ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR 020 999 ERROR TX TX TX TX TX TX TX TX TX TX Extension Size AJCC 6 Table Note: For CS Extension codes 000, 100 - 550, 950, and 999 ONLY, where histology does not equal 8020, 8021, 8030, 8031, or 8032, and grade equals 1, 2, 3, or 9, the T code for AJCC 6t staging is assigned based on the value of CS Tumor Size and/or CS Extension 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 999 999 000 ERROR TX TX TX TX TX TX TX TX TX 100 ERROR T1 T2 T3 T1 T1 T2 T3 T3 TX 200 ERROR T1 T2 T3 T1 T1 T2 T3 T3 TX 300 ERROR T1 T2 T3 T1 T1 T2 T3 T3 TX 400 ERROR T1 T2 T3 T1 T1 T2 T3 T3 TX 405 ERROR T1 T2 T3 T1 T1 T1 T1 T3 T1 410 ERROR T1 T2 T3 T1 T1 T2 T3 T3 T1 415 ERROR T1 T2 T3 T1 T1 T2 T3 T3 T1 420 ERROR T1 T2 T3 T1 T2 T2 T3 T3 T2 450 ERROR T3 T3 T3 T3 T3 T3 T3 T3 T3 480 ERROR T3 T3 T3 T3 T3 T3 T3 T3 T3 490 ERROR T3 T3 T3 T3 T3 T3 T3 T3 T3 500 ERROR T4a T4a T4a T4a T4a T4a T4a T3 T4a 520 ERROR T4a T4a T4a T4a T4a T4a T4a T3 T4a 550 ERROR T4a T4a T4a T4a T4a T4a T4a T3 T4a 950 T0 ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR 999 ERROR TX TX TX TX TX TX TX TX TX Histologies, Grade, Stage Note: The determination of AJCC stage group from T, N, and M for thyroid depends further on histologic type, grade, and age. This table shows the selection of the appropriate version of the AJCC Stage table based on histology and grade. For papillary and follicular carcinomas, a further check on age is needed to identify the correct AJCC Stage table to be used. In the table below, "Anaplastic" maps to the table AJCC-Stage: Anaplastic; "Med", to AJCC-Stage: Medullary; and "Pap/Fol", to either AJCC Stage-Thyroid: Papillary and Follicular - Age less than 45 or AJCC Stage-Thyroid: Papillary and Follicular - Age 45 and Older. If age at diagnosis is unknown, AJCC stage is derived as unknown for papillary and follicular carcinomas. ICD-O-3 histology code Description Grade Stage Table 8020 Carcinoma, undifferentiated, NOS 1,2,3,4,9 Anaplastic 8021 Carcinoma, anaplastic, NOS 1,2,3,4,9 Anaplastic 8030 Giant cell and spindle cell carcinoma 1,2,3,4,9 Anaplastic 8031 Giant cell carcinoma 1,2,3,4,9 Anaplastic 8032 Spindle cell carcinoma 1,2,3,4,9 Anaplastic 8345 Medullary carcinoma with amyloid stroma (C73.9) 1,2,3,9 Med 8346 Mixed medullary-follicular carcinoma (C73.9) 1,2,3,9 Med 8347 Mixed medullary-papillary carcinoma (C73.9) 1,2,3,9 Med 8430 Mucoepidermoid tumor [obs] 1,2,3,9 Med 8510 Medullary carcinoma, NOS 1,2,3,9 Med 8512 Medullary carcinoma with lymphoid stroma 1,2,3,9 Med 8513 Atypical medullary carcinoma (C50._) 1,2,3,9 Med * Any histology in inclusion table 4 Anaplastic * Any histology in inclusion table 5-8 ERROR * ALL OTHER HISTOLOGIES IN INCLUSION TABLE 1,2,3,9 Pap/Fol Extension T4 SSF 1 AJCC 7 Table CS Site-Specific Factor 1 CS Extension TNM Map 001, 002 560 ERROR 001, 002 600 ERROR 001, 002 620 ERROR 001, 002 650 ERROR 001, 002 700 ERROR 001, 002 720 ERROR 001, 002 730 ERROR 001, 002 800 ERROR 001, 002 810 ERROR 001, 002 815 ERROR 000, 988, 999 560 T4a 000, 988, 999 600 T4b 000, 988, 999 620 T4b 000, 988, 999 650 T4b 000, 988, 999 700 T4b 000, 988, 999 720 ERROR 000, 988, 999 730 T4b 000, 988, 999 800 T4b 000, 988, 999 810 T4b 000, 988, 999 815 T4NOS 010 560 T4a(s) 010 600 T4b(s) 010 620 T4b(s) 010 650 T4b(s) 010 700 T4b(s) 010 720 ERROR 010 730 T4b(s) 010 800 T4b(s) 010 810 T4b(s) 010 815 T4NOS(s) 020 560 T4a(m) 020 600 T4b(m) 020 620 T4b(m) 020 650 T4b(m) 020 700 T4b(m) 020 720 ERROR 020 730 T4b(m) 020 800 T4b(m) 020 810 T4b(m) 020 815 T4NOS(m) Histology Grade Extension Summary Stage Table Note: For CS Extension code 560 ONLY, "Stated as T4a", the value of Summary Stage 1977 and Summary Stage 2000 is assigned on the basis of histology and grade as shown here. ICD-O-3 histology code Description Grade SS77 Map SS2000 Map 8020 Carcinoma, undifferentiated, NOS 1,2,3,9 L L 8021 Carcinoma, anaplastic, NOS 1,2,3,9 L L 8030 Giant cell and spindle cell carcinoma 1,2,3,9 L L 8031 Giant cell carcinoma 1,2,3,9 L L 8032 Spindle cell carcinoma 1,2,3,9 L L * Any histology 4 L L * Any histology 5-8 ERROR ERROR * All histologies except 8020, 8021, 8030, 8031, and 8032 1,2,3,9 RE RE Histology Grade Extension SSF 1 AJCC 7 Table CS Site-Specific Factor 1 CS Extension TNM Map 001, 002 000 ERROR 001, 002 100 ERROR 001, 002 200 ERROR 001, 002 300 ERROR 001, 002 400 ERROR 001, 002 405 ERROR 001, 002 410 ERROR 001, 002 415 ERROR 001, 002 420 ERROR 001, 002 450 ERROR 001, 002 480 ERROR 001, 002 490 ERROR 001, 002 500 ERROR 001, 002 520 ERROR 001, 002 550 ERROR 001, 002 950 ERROR 001, 002 999 ERROR 000, 988, 999 000 T4NOS 000, 988, 999 100 T4a 000, 988, 999 200 T4a 000, 988, 999 300 T4a 000, 988, 999 400 T4a 000, 988, 999 405 ERROR 000, 988, 999 410 ERROR 000, 988, 999 415 ERROR 000, 988, 999 420 ERROR 000, 988, 999 450 T4b 000, 988, 999 480 T4b 000, 988, 999 490 ERROR 000, 988, 999 500 T4b 000, 988, 999 520 T4b 000, 988, 999 550 T4b 000, 988, 999 950 T4NOS 000, 988, 999 999 T4NOS 010 000 T4NOS(s) 010 100 T4a(s) 010 200 T4a(s) 010 300 T4a(s) 010 400 T4a(s) 010 405 ERROR 010 410 ERROR 010 415 ERROR 010 420 ERROR 010 450 T4b(s) 010 480 T4b(s) 010 490 ERROR 010 500 T4b(s) 010 520 T4b(s) 010 550 T4b(s) 010 950 T4NOS(s) 010 999 T4NOS(s) 020 000 T4NOS(m) 020 100 T4a(m) 020 200 T4a(m) 020 300 T4a(m) 020 400 T4a(m) 020 405 ERROR 020 410 ERROR 020 415 ERROR 020 420 ERROR 020 450 T4b(m) 020 480 T4b(m) 020 490 ERROR 020 500 T4b(m) 020 520 T4b(m) 020 550 T4b(m) 020 950 T4NOS(m) 020 999 T4NOS(m) Histology Grade Extension AJCC 6 Table CS Extension TNM Map 000 T4NOS 100 T4a 200 T4a 300 T4a 400 T4a 405 ERROR 410 ERROR 415 ERROR 420 ERROR 450 T4b 480 T4b 490 ERROR 500 T4b 520 T4b 550 T4b 950 T4NOS 999 T4NOS