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{
"id" : "extension_bfk",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: For this schema, AJCC defines Tis as carcinoma in situ/dysplasia (tumor size less than 0.5mm), confined to mucosa. Neuroendocrine tumors (NET) stated to be in situ, noninvasive, or confined to mucosa are classified as Tis. \"Dysplasia\" alone is generally not reportable in cancer registries but, if a registry does collect it, code 000 should be used.\n\n**Note 2**: Intraluminal or intramural extension to esophagus and duodenum is classified by the depth of greatest invasion. For extension to esophagus or duodenum via serosa, see code 600. \n\n**Note 3**: The assignment of the T1 category for NETs of the stomach 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 170, 390, 480, or 810 as appropriate to code CS Extension based on a statement of T when no other information is available.\n\n**Note 4**: Use code 300 for localized tumor only if no information is available to assign code 100, 110, 120, 160. 170, 200, 390, or 400.",
"footnotes" : "- For CS Extension codes 110-170 and 300 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size AJCC 7 Table for this schema.",
"last_modified" : "2015-05-27T16:19:13.299Z",
"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\nDysplasia\nTumor size less than 0.5 millimeters (mm)", "VALUE:Tis", "VALUE:Tis", "VALUE:IS", "VALUE:IS" ], [ "050", "OBSOLETE DATA RETAINED AND REVIEWED V0203\nSee code 000\n\n(Adeno)carcinoma in a polyp, noninvasive", "VALUE:Tis", "VALUE:Tis", "VALUE:IS", "VALUE:IS" ], [ "100", "Tumor confined to mucosa, NOS including intramucosal, NOS", "VALUE:Tis", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "110", "Invades lamina propria, including lamina propria in a polyp ", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "120", "Invades muscularis mucosae, including muscularis mucosae in a polyp", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "130", "OBSOLETE DATA RETAINED AND REVIEWED V0203\nSee codes 110, 120, 160 \n\nConfined to head of polyp\nExtension to stalk", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "140", "OBSOLETE DATA RETAINED AND REVIEWED V0203 \nSee codes 110, 120,160\n\nConfined to stalk of polyp", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "150", "OBSOLETE DATA RETAINED AND REVIEWED V0203\nSee codes 110, 120, 160\n\nTumor in polyp, NOS", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "160", "Invades submucosa (superficial invasion), including submucosa in a polyp", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "170", "Stated as T1 with no other information on extension", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "200", "Invades into but not through muscularis propria", "VALUE:T2", "VALUE:T2a", "VALUE:L", "VALUE:L" ], [ "300", "Localized, NOS\nImplants inside stomach", "JUMP:extension_size_ajcc7_xey", "VALUE:T1", "VALUE:L", "VALUE:L" ], [ "340", "OBSOLETE DATA CONVERTED V0203\nSee code 170\n\nStated as T1, NOS with no other information on extension", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "350", "OBSOLETE DATA RETAINED V0200\n\nLinitis plastica (see Note 2) and no other information regarding extension is available.", "ERROR:", "VALUE:T2a", "VALUE:RE", "VALUE:L" ], [ "390", "Stated as T2 with no other information on extension", "VALUE:T2", "VALUE:T2NOS", "VALUE:L", "VALUE:L" ], [ "400", "Invasion through muscularis propria or muscularis, NOS\nExtension through wall, NOS\nPerimuscular tissue invaded\nSubserosa /(sub)serosal fat penetrated", "VALUE:T3", "VALUE:T2b", "VALUE:L", "VALUE:L" ], [ "450", "Extension to adjacent (connective) tissue \nWITHOUT perforation of visceral peritoneum:\n Gastric artery\n Ligaments: \n Gastrocolic\n Gastrohepatic\n Gastrosplenic\n Omentum, NOS:\n Greater\n Lesser\n Perigastric fat", "VALUE:T3", "VALUE:T2b", "VALUE:RE", "VALUE:RE" ], [ "480", "Stated as T3 with no other information on extension", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "490", "OBSOLETE DATA CONVERTED V0203\nSee code 810\n\nStated as T4, [NOS] with no other information on extension", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "500", "Invasion of/through serosa (mesothelium) \n(tunica serosa) (visceral peritoneum)\nIncluding perforation of visceral peritoneum covering the gastric ligaments or the omentum \nWITHOUT invasion of adjacent structures", "VALUE:T4", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "550", "500 + 450\n\nInvasion of tissues in code 500 plus extension to structures in code 450", "VALUE:T4", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "600", "OBSOLETE DATA RETAINED AND REVIEWED V0203\nSee codes 610, 650\n\nDiaphragm\nDuodenum via serosa or NOS\nEsophagus via serosa\nIleum\nJejunum\nLiver\nPancreas\nSmall intestine, NOS\nSpleen\nTransverse colon/mesocolon (including flexures)\nCeliac axis\nAorta", "VALUE:T4", "VALUE:T4", "VALUE:RE", "VALUE:RE" ], [ "610", "Diaphragm\nDuodenum via serosa or NOS\nEsophagus via serosa\nIleum\nJejunum\nLiver\nPancreas\nSmall intestine, NOS\nSpleen\nTransverse colon/mesocolon (including flexures)", "VALUE:T4", "VALUE:T4", "VALUE:RE", "VALUE:RE" ], [ "650", "Aorta\nCeliac axis", "VALUE:T4", "VALUE:T4", "VALUE:D", "VALUE:D" ], [ "700", "Abdominal wall\nAdrenal gland\nKidney\nRetroperitoneum", "VALUE:T4", "VALUE:T4", "VALUE:D", "VALUE:D" ], [ "800", "Further contiguous extension", "VALUE:T4", "VALUE:T4", "VALUE:D", "VALUE:D" ], [ "810", "Stated as T4 with no other information on extension", "VALUE:T4", "VALUE:T4", "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" ] ]
}
