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{
  "id" : "extension_bai",
  "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 the 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 involvement is limited to cortical bone.  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 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, 415, 755, 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 4**: Use code 300 for localized tumor only if no information is available to assign code 100, 200, 405, 410, or 415.",
  "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 Table for this schema.\n- For CS Extension codes 100-620 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" : "2015-05-27T16:19:05.916Z",
  "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 confined to:\n    Lamina propria\n    Submucosa", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:L", "VALUE:L" ], [ "200", "Musculature (buccinator)", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:RE", "VALUE:L" ], [ "300", "Localized, NOS", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:L", "VALUE:L" ], [ "405", "Stated as T1 with no  other information on extension", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:L", "VALUE:L" ], [ "410", "Stated as T2 with no other information on extension", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:L", "VALUE:L" ], [ "415", "Stated as T3 with no other information on extension", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:L", "VALUE:L" ], [ "500", "Lip(s) including commissure", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:RE", "VALUE:RE" ], [ "510", "Gingiva", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:RE", "VALUE:RE" ], [ "525", "Cortical bone of mandible\nCortical bone of maxilla\nMandible, NOS\nMaxilla, NOS\nCartilage, NOS\nCortical bone, NOS (not specified in higher codes)\nBone, NOS (not specified in higher codes)", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:D", "VALUE:D" ], [ "550", "Subcutaneous soft tissue of cheek", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:RE", "VALUE:RE" ], [ "600", "Lateral pharyngeal wall\nTonsillar pillars and fossae\nTonsils", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:RE", "VALUE:RE" ], [ "603", "600 + 550", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:RE", "VALUE:RE" ], [ "605", "(550 or 600) + 525\n\nAny structure in code 550 or 600 plus  any structure in code 525", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:D", "VALUE:D" ], [ "620", "Hard palate including cortical palatine bone\nSoft palate", "JUMP:extension_size_xag", "JUMP:extension_size_xag", "VALUE:D", "VALUE:D" ], [ "650", "OBSOLETE DATA CONVERTED V0200\nAssign to T1-3 category per curator, see code 550 \n\nSubcutaneous soft tissue of cheek", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "660", "Skin of cheek with or without ulceration", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:D" ], [ "665", "660 + (525 or 620) \n\nSkin of cheek plus any structure in code 525 or 620", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "670", "OBSOLETE DATA CONVERTED V0200\nSee code 740\n\nMaxillary sinus", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "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 525, 605, 665, 725, or 753 as appropriate.\n\nBone (cortical):\n   Mandible  \n   Maxilla", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "725", "Trabecular bone:\n    Mandible\n    Maxilla \n    Palatine bone", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "730", "OBSOLETE DATA CONVERTED V0200\nSee code 805\n\nSkull", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "740", "Maxillary sinus (antrum) Nasal cavity", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "750", "Tongue\nDeep (extrinsic) muscle of tongue:\n    Genioglossus\n    Hyoglossus\n    Palatoglossus\n    Styloglossus", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "753", "(725, 740, or 750) + 620", "VALUE:T4a", "VALUE:T4a", "VALUE:D", "VALUE:D" ], [ "755", "Stated as T4a with no other information on extension", "VALUE:T4a", "VALUE:T4a", "VALUE:RE", "VALUE:D" ], [ "788", "Specified bone \n(Other than maxilla, mandible, palatine, or bones in codes 795 and 805)", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "790", "OBSOLETE DATA RETAINED V0200\n\nOther contiguous extension:\n    Base of skull\n    Encases internal carotid artery\n    Masticator space\n    Pterygoid plates", "ERROR:", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "795", "Masticator space\nPterygoid plates", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "800", "OBSOLETE DATA REVIEWED AND CHANGED V0203\nExtension to hard palate and soft palate assigned to T1-T3 categories in CSv2 based on curator response.  All CSv1 cases should be reviewed and recoded to 620, 665, 753, or 808 as appropriate. \n\nFurther contiguous extension:\n    Hard palate\n    Soft palate", "ERROR:", "ERROR:", "ERROR:", "ERROR:" ], [ "805", "Further contiguous extension including:\n    Internal carotid artery (encased)\n    Base of skull\n    Skull ", "VALUE:T4b", "VALUE:T4b", "VALUE:D", "VALUE:D" ], [ "808", "(788, 795, or 805) + 620", "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:D" ], [ "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" ] ]
}




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