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{
"id" : "extension_bam",
"algorithm" : "cs",
"version" : "02.05.50",
"name" : "Extension",
"title" : "CS Extension",
"notes" : "**Note 1**: The intrinsic muscles of tongue are four paired muscles within the tongue which control its shape. The extrinsic muscles originate from structures outside the tongue and control its positioning.\n\n**Note 2**: The assignment of T1 and T2 categories for tumors of the oropharynx 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 405, 410, 650, 775, 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 3**: Use code 300 for localized tumor only if no information is available to assign codes 100, 200, 400, 405, or 410.",
"footnotes" : "- For CS Extension codes 100-620 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.\n- For CS Extension codes 100-650 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size AJCC 6 Table for this schema.",
"last_modified" : "2015-05-27T16:19:06.145Z",
"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 posterior one-third of tongue:\n Lamina propria\n Submucosa", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:L", "VALUE:L" ], [ "200", "Musculature, intrinsic or NOS", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:L", "VALUE:L" ], [ "300", "Localized, NOS\nMidline tumor", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:L", "VALUE:L" ], [ "400", "Base of tongue tumor crosses midline\nTumor of lingual tonsil on both sides", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:L", "VALUE:L" ], [ "405", "Stated as T1 with no other information on extension", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:L", "VALUE:L" ], [ "410", "Stated as T2 with no other information on extension", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:L", "VALUE:L" ], [ "500", "Anterior two-thirds of tongue for base of tongue\nLingual tonsil for base of tongue\nBase of tongue for lingual tonsil\nFloor of mouth\nLower gingiva", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:RE", "VALUE:RE" ], [ "530", "Sublingual gland", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:RE", "VALUE:RE" ], [ "600", "OBSOLETE DATA RETAINED V0200\nEpiglottis, lingual surface assigned to T3 in AJCC 7, see code 640\n\nEpiglottis, lingual (pharyngeal) surface\nGlossoepiglottic fold\nGlossopharyngeal fold\nLateral pharyngeal wall\nPharyngoepiglottic fold\nTonsillar pillars and fossae\nTonsils\nVallecula", "ERROR:", "JUMP:extension_size_ajcc6_xai", "VALUE:RE", "VALUE:RE" ], [ "610", "Glossoepiglottic fold\nGlossopharyngeal fold\nLateral pharyngeal wall\nPharyngoepiglottic fold\nTonsillar pillars and fossae\nTonsils\nVallecula", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:RE", "VALUE:RE" ], [ "620", "Soft palate, inferior surface or NOS including uvula", "JUMP:extension_size_ajcc7_xeu", "JUMP:extension_size_ajcc6_xai", "VALUE:D", "VALUE:RE" ], [ "640", "Epiglottis, lingual surface", "VALUE:T3", "JUMP:extension_size_ajcc6_xai", "VALUE:RE", "VALUE:RE" ], [ "645", "640 + 620 \n\nEpiglottis, lingual surface plus soft palate", "VALUE:T3", "JUMP:extension_size_ajcc6_xai", "VALUE:D", "VALUE:RE" ], [ "650", "Stated as T3 with no other information on extension", "VALUE:T3", "JUMP:extension_size_ajcc6_xai", "VALUE:RE", "VALUE:RE" ], [ "710", "Mandible for lingual tonsil", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:D" ], [ "715", "710 + 620 \n\nMandible plus soft palate", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "720", "Mandible for base of tongue", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "740", "Medial pterygoid muscle\nHard palate", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "750", "Musculature of tongue, extrinsic:\n Genioglossus\n Geniohyoid\n Hyoglossus\n Mylohyoid\n Palatoglossus\n Styloglossus", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "760", "Hypopharynx", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "770", "Larynx", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "775", "Stated as T4a with no other information on extension", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:RE" ], [ "780", "Skin", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "790", "Lateral nasopharynx\nLateral pterygoid muscle\nPterygoid plates", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "795", "(770, 780, or 790) + 760", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "800", "OBSOLETE DATA REVIEWED AND CHANGED V0203\nRecode involved structures to 620, 645, 715, 760, 790, or 795 as appropriate.\n\nContiguous extension to:\n Base of skull\n Carotid artery\n Hypopharynx\n Lateral nasopharynx\n Lateral pterygoid muscle\n Pterygoid plates\n Uvula", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "805", "Further contiguous extension including:\n Skull base\n 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" ], [ "820", "OBSOLETE DATA CONVERTED V0200\nSee code 805\n\nFurther contiguous extension", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "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" ] ]
}
