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{
"id" : "extranodal_extension_head_and_neck_pathological_93423",
"algorithm" : "eod_public",
"version" : "1.0",
"name" : "Extranodal Extension Head and Neck Pathological",
"title" : "Extranodal Extension Head and Neck Pathological",
"notes" : "**Note 1:** Physician statement of extranodal extension (ENE) pathologically during a lymph node dissection or physician pathological stage indicating the absence or presence of ENE can be used to code this data item when no other information is available.\n\n**Note 2:** Code the status of ENE assessed on histopathologic examination of surgically resected involved regional lymph node(s). Do not code ENE from a lymph node biopsy (FNA, core, incisional, excisional, sentinel). Do not code ENE for any distant lymph nodes. \n\n**Note 3:** Be aware that the rules for coding ENE for head and neck sites compared to non-head and neck sites are different.\n\n**Note 4:** Definitions of ENE subtypes and rules:\n* Microscopic ENE [ENE (mi)] is defined as less than or equal to 2 mm.\n* Major ENE [ENE (ma)] is defined as greater than 2 mm.\n* Both ENE (mi) and ENE (ma) qualify as ENE (+) for definition of pN.\n\n**Note 5:** The measurement of ENE is the distance from the lymph node capsule in millimeters (mm).",
"last_modified" : "2018-03-12T16:39:53.409Z",
"definition" : [ {
"key" : "extranodal_ext_hn_path",
"name" : "Code",
"type" : "INPUT"
}, {
"key" : "description",
"name" : "Description",
"type" : "DESCRIPTION"
} ],
"rows" : [ [ "0.0", "Lymph nodes positive for cancer but ENE not identified or negative" ], [ "0.1-9.9", "ENE 0.1 to 9.9 mm" ], [ "X.1", "ENE 10 mm or greater" ], [ "X.2", "ENE microscopic, size unknown\nStated as ENE (mi)" ], [ "X.3", "ENE major, size unknown\nStated as ENE (ma)" ], [ "X.4", "ENE present, microscopic or major unknown, size unknown" ], [ "X.7", "Surgically resected regional lymph node(s) negative for cancer (pN0)" ], [ "X.8", "Not applicable: Information not collected for this case\n(If this information is required by your standard setter, use of code X.8 may result in an edit error)" ], [ "X.9", "Not documented in medical record\nNo surgical resection of regional lymph node(s)\nENE not assessed pathologically, or unknown if assessed\nPathological assessment of lymph node(s) not done, or unknown if done" ] ]
}