EOD Regional Nodes
Notes
**Note 1:** All lymph nodes (regional and distant) involvement is coded in this field. **Note 2:** Regional lymph nodes include * Cervical * Parotid * Preauricular * Submandibular| Code | Description | SS2018 N | 
|---|---|---|
| 000 | No regional lymph node involvement | NONE | 
| 300 | SINGLE lymph node region superior to the mediastinum | RN | 
| 400 | MULTIPLE lymph node regions superior to the mediastinum | RN | 
| 500 | Unknown number of lymph node region(s) OR regions draining the ocular adnexal structures and superior to the mediastinum | RN | 
| 600 | Mediastinal | D | 
| 700 | Diffuse OR disseminated involvement of peripheral and central lymph node regions | D | 
| 800 | Regional lymph node(s), NOS Lymph node(s), NOS | RN | 
| 999 | Unknown; regional lymph node(s) not stated Regional lymph node(s) cannot be assessed Not documented in patient record Death Certificate Only | U |