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{
"id" : "extension_bae",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: Periosteum is a fibrous membrane that wraps the outer surface of bones. Cortical bone is the dense compact outer layer of bone. Trabecular, cancellous, or spongy bone (spongiosa) is a porous network of tissue filling the interior of bone, decreasing weight and allowing room for blood vessels and marrow.\n\n**Note 2**: AJCC assigns the T category based on size when bone involvement is limited to the cortex. Involvement through cortical bone is required for assignment of T4a.\n\n**Note 3**: The assignment of T1, T2, and T3 categories for tumors of the lip and oral cavity is based on tumor size. A physician's statement of the Tcategory 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 405, 410, 415, 780, 810, or 815 as appropriate to code CS Extension based on a statement of T when no other extenison information is available.\n\n**Note 4**: Use code 300 for localized tumor only if no information is available to assign code 100, 400, 405, 410, or 415.",
"footnotes" : "- Note: For CS Extension codes 100 through 605 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- Note: For CS Extension codes 100 through 605 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" : "2015-05-27T16:19:05.674Z",
"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:Tis", "VALUE:Tis", "VALUE:IS", "VALUE:IS" ], [ "100", "Invasive tumor on one side confined to:\n Lamina propria\n Submucosa", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:L", "VALUE:L" ], [ "300", "Localized, NOS", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:L", "VALUE:L" ], [ "400", "Tumor crosses midline", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:L", "VALUE:L" ], [ "405", "Stated as T1 with no other information on extension", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:L", "VALUE:L" ], [ "410", "Stated as T2 with no other information on extension.", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:L", "VALUE:L" ], [ "415", "Stated as T3 with no other information on extension", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:L", "VALUE:L" ], [ "500", "Anterior 2/3 of tongue\nBase of tongue\nGingiva (alveolar ridge), lower\nPeriosteum of mandible", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:RE", "VALUE:RE" ], [ "530", "Sublingual gland, including ducts\nSubmandibular (submaxillary) glands, including ducts", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:RE", "VALUE:RE" ], [ "535", "Cortical bone of mandible\nMandible, NOS\nCartilage, NOS\nCortical bone, NOS (not specified in higher codes)\nBone, NOS (not specified in higher codes)", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:RE", "VALUE:RE" ], [ "545", "Cortical bone of maxilla\nMaxilla, NOS", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:D", "VALUE:D" ], [ "550", "Subcutaneous soft tissue of chin/neck", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:RE", "VALUE:RE" ], [ "600", "Epiglottis\nGlossoepiglottic fold\nGlossopharyngeal sulcus\nLateral pharyngeal wall\nPharyngeal (lingual) surface\nPharyngoepiglottic fold\nTonsillar pillars and fossae\nTonsils\nVallecula", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:RE", "VALUE:RE" ], [ "603", "600 +550", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:RE", "VALUE:RE" ], [ "605", "(550 or 600) + 545\n\nAny structure in code 550 or 600 plus any structure in code 545", "JUMP:extension_size_xac", "JUMP:extension_size_xac", "VALUE:D", "VALUE:D" ], [ "620", "Deep (extrinsic) muscle of tongue:\n Genioglossus\n Geniohyoid\n Hyoglossus\n Mylohyoid\n Palatoglossus\n Styloglossus", "VALUE:T4a", "VALUE:T4a", "VALUE:L", "VALUE:L" ], [ "630", "OBSOLETE DATA RETAINED V0200\n\n(620) + any of (500, 530, or 600)", "ERROR:", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "635", "620 + (500, 530, 535, 550, or 600)\n\nAny structure in code 620 plus any structure in code 500, 530, 535, or 600", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "640", "OBSOLETE DATA CONVERTED V0200\nAssign to T1-3 category per site curator, see code 550 \n\nSubcutaneous soft tissue of chin/neck", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "645", "620 + 545\n\nAny structure in code 620 plus any structure in code 545", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "700", "OBSOLETE DATA REVIEWED AND CHANGED V0203 \nCSv2 codes differentiate between involvement of cortical bone and trabecular bone. All CSv1 cases should be reviewed and recoded to 535, 635, 725, or 765 as appropriate.\n\nMandible ", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "725", "Trabecular bone of mandible", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "760", "Skin of undersurface of chin/neck", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "765", "(725 or 760) + 545\n\nAny structure in code 725 or 760 plus any structure in code 545", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "770", "OBSOLETE DATA REVIEWED AND CHANGED V0203 \nCSv2 codes differentiate between involvement of cortical bone and trabecular bone. All CSv1 cases should be reviewed and recoded to 545, 605, 645, 765, or 775 as appropriate\n\nMaxillary sinus", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "775", "Trabecular bone of maxilla\nMaxillary sinus (antrum)", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "780", "Stated as T4a with no other information on extension", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "788", "Specified bone \n(Other than mandible, maxilla, or bones in codes 790 and 805)", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "790", "Masticator space\nPterygoid plates", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "800", "OBSOLETE DATA RETAINED V0200\n\nFurther contiguous extension:\n Base of skull \n Masticator space\n Pterygoid plates", "ERROR:", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "805", "Further contiguous extension:\n Base of skull\n Internal carotid artery (encased)", "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" ] ]
}