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.
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.
- If codes 0.0-0.9, X.1-X.7 are used, this indicates that the lymph nodes were surgically resected and Scope of Regional Lymph Node Surgery [NAACCR Data Item: 1292] must be 3-7
Note 3: Be aware that the rules for coding ENE for head and neck sites compared to non-head and neck sites are different.
Note 4: Definitions of ENE subtypes and rules:
- Microscopic ENE [ENE (mi)] is defined as less than or equal to 2 mm.
- Major ENE [ENE (ma)] is defined as greater than 2 mm.
- Both ENE (mi) and ENE (ma) qualify as ENE (+) for definition of pN.
Note 5: The measurement of ENE is the distance from the lymph node capsule in millimeters (mm).
Default
X.8NAACCR Item
NAACCR #3832Metadata
SSDICode | Description |
---|---|
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 |
X.3 | ENE major, size unknown |
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 |
X.9 | Not documented in medical record |