Organization |
Field Name |
ID |
Required |
---|---|---|---|
KCR |
Extranodal Extension Head and Neck Pathologi |
34031 |
yes |
SEER |
Extranodal Exten H&N Path |
3832 |
yes |
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).
Code |
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 |