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{
"id" : "extension_bbu",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: Islets of Langerhans are distributed throughout the pancreas; an islet tumor is coded to the subsite of the pancreas in which the tumor arises if the information is available.\n\n**Note 2**: Codes 400-780 are used for contiguous extension of tumor from the site of origin. Discontinuous involvement is coded in CS Mets at DX.\n\n**Note 3**: The assignment of T1 and T2 categories for tumors of the pancreas 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 150 and 200 as appropriate to code CS Extension based on a statement of T when no other extension information is available.",
"footnotes" : "- For CS Extension codes 100, 150, 200, 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 Table for this schema.\n- For CS Extension codes 100, 150, 200, and 300 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this schema.",
"last_modified" : "2015-05-27T16:19:08.389Z",
"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, intrapethelial, noninvasive \nPancreatic intraepithelial neoplasia III (PanInIII) ", "VALUE:Tis", "VALUE:Tis", "VALUE:IS", "VALUE:IS" ], [ "100", "Confined to pancreas", "JUMP:extension_size_xpe", "JUMP:extension_size_xpe", "VALUE:L", "VALUE:L" ], [ "150", "Stated as T1 with no other information on extension", "JUMP:extension_size_xpe", "JUMP:extension_size_xpe", "VALUE:L", "VALUE:L" ], [ "200", "Stated as T2 with no other information on extension", "JUMP:extension_size_xpe", "JUMP:extension_size_xpe", "VALUE:L", "VALUE:L" ], [ "300", "Localized, NOS", "JUMP:extension_size_xpe", "JUMP:extension_size_xpe", "VALUE:L", "VALUE:L" ], [ "400", "Peripancreatic tissue", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "420", "OBSOLETE DATA CONVERTED V0203\nSee code 510\n\nStated as T3, NOS", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "450", "Ampulla of Vater\nDuodenum\nExtra hepatic bile duct(s)", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "500", "Adjacent large vessel(s) (except as listed in code 600)\nColon\nSpleen\nStomach", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "510", "Stated as T3 with no other information on extension", "VALUE:T3", "VALUE:T3", "VALUE:RE", "VALUE:RE" ], [ "600", "Tumor is inseparable from the celiac axis or superior mesenteric artery\nAorta\nCeliac artery\nSuperior mesenteric artery", "VALUE:T4", "VALUE:T4", "VALUE:RE", "VALUE:RE" ], [ "790", "OBSOLETE DATA CONVERTED V0203\nSee code 810\n\nStated as T4, NOS", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "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" ] ]
}
