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{
"id" : "extension_bby",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: AJCC considers all anaplastic carcinomas to be T4.\n\n**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.\n\n**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.\n\n**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.\n\n**Note 5**: Extension codes 405, 410, 415, 420, and 490 are not compatible with anaplastic carcinomas of the thyroid.",
"footnotes" : "- 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. \n- 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. \n- 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. \n- 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.",
"last_modified" : "2015-05-27T16:19:08.570Z",
"definition" : [ {
"key" : "extension",
"name" : "Code",
"type" : "INPUT"
}, {
"key" : "description",
"name" : "Description",
"type" : "DESCRIPTION"
}, {
"key" : "ajcc7_t",
"name" : "AJCC 7 T",
"type" : "ENDPOINT"
}, {
"key" : "ajcc6_t",
"name" : "AJCC 6 T",
"type" : "ENDPOINT"
}, {
"key" : "t77",
"name" : "Summary Stage 1977 T",
"type" : "ENDPOINT"
}, {
"key" : "t2000",
"name" : "Summary Stage 2000 T",
"type" : "ENDPOINT"
} ],
"rows" : [ [ "000", "In situ, intraepithelial, noninvasive", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:IS", "VALUE:IS" ], [ "100", "Single invasive tumor confined to thyroid", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "200", "Multiple foci confined to thyroid", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "300", "Localized, NOS", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "400", "Into thyroid capsule, but not beyond", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "405", "Stated as T1a with no other information on extension", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "410", "Stated as T1b with no other information on extension", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "415", "Stated as T1 [NOS] with no other information on extension", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "420", "Stated as T2 with no other information on extension", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "450", "Minimal extrathyroid extension including:\n Strap muscle(s):\n Omohyoid\n Sternohyoid\n Sternothyroid\n Thyrohyoid", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:RE", "VALUE:RE" ], [ "480", "Pericapsular soft tissue/connective tissue", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:RE", "VALUE:RE" ], [ "490", "Stated as T3 with no other information on extension", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:L", "VALUE:L" ], [ "500", "Parathyroid\nNerves:\n Recurrent laryngeal\n Vagus", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:RE", "VALUE:RE" ], [ "520", "Cricoid cartilage\nEsophagus\nLarynx\nSternocleidomastoid muscle", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:RE", "VALUE:RE" ], [ "550", "Trachea", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:D", "VALUE:D" ], [ "560", "Stated as T4a with no other information on extension", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4a", "JUMP:histology_grade_extension_summary_stage_xgx", "JUMP:histology_grade_extension_summary_stage_xgx" ], [ "600", "Thyroid cartilage\nTumor described as \"FIXED to adjacent tissues\"", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:RE", "VALUE:RE" ], [ "620", "Blood vessel(s) (major):\n Carotid artery (encased)\n Jugular vein\n Thyroid artery or vein", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:RE", "VALUE:RE" ], [ "650", "(600 or 620) + 550 \n\nAny structures in code 600 or 620 plus trachea", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "700", "Bone\nSkeletal muscle, other than strap or sternocleidomastoid muscle", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "720", "OBSOLETE DATA CONVERTED V0200 \nSee code 550 \n\nTrachea", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "730", "700 + 550\n\nAny structures in code 700 plus trachea", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "800", "Further contiguous extension including:\n Mediastinal tissues\n Prevertebral fascia", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "810", "Stated as T4b with no other information on extension", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "815", "Stated as T4 [NOS] with no other information on extension", "JUMP:extension_t4_ssf1_ajcc7_xgw", "VALUE:T4NOS", "VALUE:RE", "VALUE:RE" ], [ "950", "No evidence of primary tumor", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:U", "VALUE:U" ], [ "999", "Unknown; extension not stated\nPrimary tumor cannot be assessed\nNot documented in patient record", "JUMP:determine_correct_table_for_ajcc7_t_ns32", "JUMP:determine_correct_table_for_ajcc6_t_ns33", "VALUE:U", "VALUE:U" ] ]
}