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{
"id" : "extension_bba",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: AJCC considers \"in situ carcinoma of salivary gland\" an impossible diagnosis. Any case so coded will be mapped to an unknown AJCC stage, in situ Summary Stage.\n\n**Note 2**: Periosteum is a fibrous membrane that wraps the outer surface of bones. Mucoperiosteum is a compound structure of mucous membrane and periosteum. Cortical bone is the dense compact outer layer of bone.\n\n**Note 3**: The assignment of T1 and T2 categories for tumors of major salivary glands without exparenchymal extension 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 305, 310, 408, 625, 810, or 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 or 305.",
"footnotes" : "- For CS Extension codes 100-350 ONLY, the T category for AJCC 7 staging is assigned based on value of CS Tumor Size as shown in the Extension Size Table for this schema.\n- For CS Extension codes 100-350 ONLY, the T category for AJCC 6 staging is assigned based on value of CS Tumor Size as shown in the Extension Size Table for this schema.",
"last_modified" : "2015-05-27T16:19:06.994Z",
"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", "VALUE:TX", "VALUE:TX", "VALUE:IS", "VALUE:IS" ], [ "100", "Invasive tumor confined to gland/duct of origin", "JUMP:extension_size_xpf", "JUMP:extension_size_xpf", "VALUE:L", "VALUE:L" ], [ "300", "Localized, NOS", "JUMP:extension_size_xpf", "JUMP:extension_size_xpf", "VALUE:L", "VALUE:L" ], [ "305", "Stated as T1 with no other information on extension", "JUMP:extension_size_xpf", "JUMP:extension_size_xpf", "VALUE:L", "VALUE:L" ], [ "310", "Stated as T2 with no other information on extension", "JUMP:extension_size_xpf", "JUMP:extension_size_xpf", "VALUE:L", "VALUE:L" ], [ "350", "Microscopic extraparenchymal extension ONLY to periglandular soft/connective tissue", "JUMP:extension_size_xpf", "JUMP:extension_size_xpf", "VALUE:RE", "VALUE:RE" ], [ "400", "Macroscopic extraparenchymal extension to: \n Periglandular soft/connective tissue\n Another major salivary gland (parotid, submandibular)\n Skeletal muscle:\n Digastric\n Pterygoid\n Stylohyoid", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "402", "Maxillary artery\nFacial artery or vein", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "405", "Spinal accessory nerve", "VALUE:T3", "VALUE:T3", "VALUE:D", "VALUE:D" ], [ "408", "Stated as T3 with no other information on extension", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "450", "Periosteum of mandible", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "505", "OBSOLETE DATA CONVERTED V0203\nSee code 515\n\n(450 or 510) + 405\n\n (Any structure in code 450 or 510 + Spinal accessory nerve)", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "510", "Mandible \nNerves:\n Facial (7th)\n Lingual", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "515", "(450 or 510) + 402", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "518", "(450 or 510) + 405", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "600", "Skin", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "620", "External auditory meatus", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "623", "(600 or 620) + 402", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "625", "Stated as T4a with no other information on extension", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "650", "OBSOLETE DATA REVIEWED AND CHANGED V0203\nRecode involved structures to code 402, 515, 623, 655, or 660 as appropriate\n\n Blood vessel(s):\n Carotid artery\n Facial artery or vein\n Maxillary artery", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "655", "Carotid artery (encased)", "VALUE:T4b", "VALUE:T4b", "VALUE:RE", "VALUE:RE" ], [ "660", "655 + (405, 600, or 620) \n\nCarotid artery plus any structures in code 405, 600, or 620", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "710", "Base of skull\nSkull, NOS", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "720", "OBSOLETE DATA CONVERTED V0200\nSee code 405 \n\nSpinal accessory nerve", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "790", "Pterygoid plates", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "800", "Further contiguous extension", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "810", "Stated as T4b with no other information on extension", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "815", "Stated as T4 [NOS] with no other information on extension", "VALUE:T4NOS", "VALUE:T4NOS", "VALUE:RE", "VALUE:RE" ], [ "950", "No evidence of primary tumor", "VALUE:T0", "VALUE:T0", "VALUE:U", "VALUE:U" ], [ "999", "Unknown; extension not stated\nPrimary tumor cannot be assessed\nNot documented in patient record", "VALUE:TX", "VALUE:TX", "VALUE:U", "VALUE:U" ] ]
}
