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{
"id" : "extension_bdw",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: AJCC does not include a T category or stage grouping for in situ melanoma of mucosa of head and neck sites. CS Extension codes of 000 and 999 are mapped to NA, and AJCC stage group is derived as NA. \n\n**Note 2**: AJCC does not include a T1 or T2 category for mucosal melanoma of head and neck sites.\n\n**Note 3**: Use codes 305 and 315 for extension involving the mucosa only of adjacent sites. Use higher codes for extension involving deeper tissues of the primary or adjacent sites.\n\n**Note 4**: Use code 310 for localized tumor only if no information is available to assign code 105, 205, 305, 340, 345, or 400.\n\n**Note 5**: Use code 320, 775, 810, or 815 if the physician's assignment of T category is the only information available about the extent of the tumor.",
"last_modified" : "2015-05-27T16:19:11.194Z",
"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:NA", "VALUE:NA", "VALUE:IS", "VALUE:IS" ], [ "100", "OBSOLETE DATA RETAINED V0200\n\nInvasive tumor confined to site of origin", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "105", "Tumor confined to mucosa of site of origin", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "200", "OBSOLETE DATA RETAINED V0200\n\nTumor involves more than one subsite,\nWITHOUT fixation or NOS", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "205", "Extension involving mucosa only of more than one subsite of supraglottis, glottis, or subglottis \nWITHOUT impairment of vocal cord mobility or fixation of larynx or NOS", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "300", "OBSOLETE DATA RETAINED V0200\n\nTumor involves adjacent regions(s) of larynx", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "305", "Extension involving mucosa only of adjacent region(s) of larynx \nWITHOUT impairment of vocal cord mobility or fixation of larynx or NOS", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "310", "Localized, NOS", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "315", "Extension involving mucosa only of adjacent regions:\n Base of tongue\n Hypopharynx, NOS\n Pre-epiglottic tissues\n Postcricoid area\n Pyriform sinus\n Vallecula", "VALUE:T3", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "320", "Stated as T3 with no other information on extension", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "340", "Involvement of deep tissues of any structures in code 105, 205, or 305\nSoft tissue, NOS", "VALUE:T4a", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "345", "Involvement of any structure in code 105, 205, or 305 WITH impaired vocal cord mobility", "VALUE:T4a", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "350", "OBSOLETE DATA RETAINED V0200\n\nImpaired vocal cord mobility", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "400", "Tumor limited to larynx \nWITH vocal cord fixation", "VALUE:T4a", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "450", "OBSOLETE DATA RETAINED V0200\n\nLocalized, NOS", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "460", "(340, 345, or 400) + 315\n\nInvolvement of any structures in code 340, 345, or 400 plus mucosal involvement of any structures in code 315", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "500", "Involvement of deep tissue or musculature of any structure in code 315 \nWITH or WITHOUT vocal impairment or fixation of larynx or NOS", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "600", "OBSOLETE DATA RETAINED V0200\n\nHypopharynx, NOS\nPostcricoid area\nPre-epiglottic tissues\nPyriform sinus (pyriform fossa)\nVallecula", "ERROR:", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "680", "Extension to/through:\n Cricoid cartilage\n Thyroid cartilage", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:D" ], [ "700", "Extension to/through:\n Cervical esophagus\n Deep muscle of tongue\n Extrinsic (strap) muscles:\n Omohyoid\n Sternohyoid\n Sternothyroid\n Thyrohyoid\n Oropharynx\n Skin\n Soft tissues of neck\n Thyroid gland\n Trachea", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "775", "Stated as T4a with no other information on extension", "VALUE:T4a", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "800", "Contiguous extension, including:\n Carotid artery (encased)\n Mediastinal structures\n Prevertebral space", "VALUE:T4b", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "801", "Further contiguous extension including:\n Base of skull\n Brain\n Dura\n Lower cranial nerves (IX, X, XI, XII)\n Masticator space", "VALUE:T4b", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "810", "Stated as T4b with no other information on extension", "VALUE:T4b", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "815", "Stated as T4 [NOS] with no other information on extension", "VALUE:T4NOS", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "950", "OBSOLETE DATA RETAINED V0200\n\nNo evidence of primary tumor", "ERROR:", "VALUE:NA", "VALUE:U", "VALUE:U" ], [ "999", "Unknown; extension not stated\nPrimary tumor cannot be assessed\nNot documented in patient record", "VALUE:NA", "VALUE:NA", "VALUE:U", "VALUE:U" ] ]
}