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{
"id" : "extension_bef",
"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**: AJCC does not include a Tis or TX for 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 3**: AJCC does not include a T1 or T2 category for mucosal melanoma of head and neck sites.\n\n**Note 4**: Use codes 460-495 for extension involving the mucosa only of adjacent sites. Use higher codes for extension involving the deeper tissues of the primary or adjacent sites.\n\n**Note 5**: Use code 305 for localized tumor only if no information is available to assign code 110, 405, 510, or 520.\n\n**Note 6**: Use code 510, 785, 810, or 815 if the physician's assignment of T category is the only information available about the extent of the tumor.",
"last_modified" : "2015-05-27T16:19:11.531Z",
"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 on one side confined to posterior 1/3 of tongue:\n Lamina propria\n Submucosa", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "105", "OBSOLETE DATA REVIEWED V0203\nSee codes 110, 405\n\nTumor confined to mucosa on one side of posterior one-third of tongue", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "110", "Tumor involving mucosa:\n Base of tongue (posterior one-third of tongue):\n Confined to one side\n Midline tumor\n Lingual tonsil", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "200", "OBSOLETE DATA RETAINED V0200\n\nMusculature, intrinsic or NOS", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "300", "OBSOLETE DATA RETAINED V0200\n\nLocalized, NOS\nMidline tumor", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "305", "Localized, NOS", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "310", "OBSOLETE DATA CONVERTED V0203\nSee code 110\n\nMidline tumor confined to mucosa", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "400", "OBSOLETE DATA RETAINED V0200\n\nTumor crosses midline", "ERROR:", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "405", "Extension involving mucosa only across midline of tongue\nExtension involving mucosa only of lingual tonsil on both sides of tongue", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "460", "Extension involving mucosa only: \n Anterior two-thirds of tongue for base of tongue \n Base of tongue for lingual tonsil\n Floor of mouth\n Lower gingiva", "VALUE:T3", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "470", "Extension involving mucosa only:\n Epiglottis, lingual (pharyngeal) surface\n Glossoepiglottic fold\n Glossopharyngeal fold\n Lateral pharyngeal wall\n Pharyngoepiglottic fold\n Tonsillar pillars and fossae\n Tonsils\n Vallecula", "VALUE:T3", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "480", "Extension involving mucosa only:\n Soft palate including uvula", "VALUE:T3", "VALUE:NA", "VALUE:D", "VALUE:RE" ], [ "490", "Extension involving mucosa only:\n Larynx\n Hypopharynx", "VALUE:T3", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "495", "Extension involving mucosa only:\n Hard palate", "VALUE:T3", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "500", "OBSOLETE DATA RETAINED V0200\n\nAnterior 2/3 of tongue for base of tongue\nBase of tongue for lingual tonsil\nFloor of mouth\nLower gingiva", "ERROR:", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "510", "Stated as T3 with no other information on extension", "VALUE:T3", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "520", "Deep soft tissue or musculature of base of tongue or lingual tonsil\nSoft tissue, NOS", "VALUE:T4a", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "523", "520+ (460 or 470)\n\nInvolvement of deep soft tissue or musculature of base of tongue or lingual tonsil plus mucosal involvement of any structure in code 460 or 470", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "525", "520 + 480\n\nInvolvement of deep soft tissue or musculature of base of tongue or lingual tonsil plus mucosal involvement of soft palate", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:RE" ], [ "527", "520 + (490 or 495) \n\nInvolvement of deep soft tissue or musculature of base of tongue or lingual tonsil plus mucosal involvement of any structure in code 490 or 495", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "530", "Sublingual gland", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "550", "Involvement of deep soft tissue or musculature of any structure in code 470", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "600", "OBSOLETE DATA RETAINED V0200\n\nEpiglottis, lingual (pharyngeal) surface\nGlossoepiglottic fold\nGlossopharyngeal fold\nLateral pharyngeal wall\nPharyngoepiglottic fold\nTonsillar pillars and fossae\nTonsils\nVallecula", "ERROR:", "VALUE:NA", "VALUE:RE", "VALUE:RE" ], [ "610", "(530 or 550) + 480\n\nInvolvement of sublingual gland or deep soft tissue or musculature of any structure in code 470 plus mucosal involvement of soft palate", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:RE" ], [ "612", "(530 or 550) + (490 or 495)\n\nInvolvement of sublingual gland or deep soft tissue or musculature of any structure in code 470 plus mucosal involvement of any structure in code 490 or 495", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "620", "Deep soft tissue or musculature of soft palate, inferior surface or NOS, including uvula", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:RE" ], [ "710", "Mandible for lingual tonsil", "VALUE:T4a", "VALUE:NA", "VALUE:RE", "VALUE:D" ], [ "715", "710 + (480 or 620) \n\nMandible plus any involvement of soft palate", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "720", "Mandible for base of tongue", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "740", "OBSOLETE DATA RETAINED V0200\n\nMedial pterygoid \nHard palate", "ERROR:", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "750", "Musculature, extrinsic of tongue:\n Genioglossus\n Geniohyoid\n Hyoglossus\n Mylohyoid\n Palatoglossus\n Styloglossus", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "770", "Deep soft tissue or musculature of:\n Larynx\n Hypopharynx", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "775", "Bone excluding base of skull and mandible\nLateral nasopharynx\nPterygoid muscle\nPterygoid plates\nPalatine bone\nCartilage, NOS\nBone, NOS", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "780", "Overlying skin", "VALUE:T4a", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "785", "Stated as T4a with no other information on extension", "VALUE:T4a", "VALUE:NA", "VALUE:L", "VALUE:L" ], [ "790", "Contiguous extension to:\n Carotid artery (encased)\n Mediastinal structures\n Prevertebral space", "VALUE:T4b", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "800", "OBSOLETE DATA RETAINED V0200\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:", "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" ], [ "820", "OBSOLETE DATA RETAINED V0200\n\nFurther contiguous extension", "ERROR:", "VALUE:NA", "VALUE:D", "VALUE:D" ], [ "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" ] ]
}
