EOD Regional Nodes
Notes
**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field EOD Mets.
**Note 2:** Regional nodes includes bilateral and contralateral involvement of named nodes.
| Code |
Description |
SS2018 N |
| 000 |
No regional lymph node involvement |
NONE |
| 300 |
Aortic (above diaphragm), NOS
- Peri/para-aortic, NOS
+ Ascending aorta (phrenic)
+ Subaortic (aortico-pulmonary window)
Carinal (tracheobronchial) (tracheal bifurcation)
Hilar (bronchopulmonary) (proximal lobar) (pulmonary root)
Intrapulmonary, NOS
- Interlobar
- Lobar
- Segmental
- Subsegmental
- Mediastinal, NOS
- Anterior
- Posterior (tracheoesophageal)
Peri/parabronchial
Pericardial
Peri/paraesophageal
Peri/paratracheal, NOS
- Azygos (lower peritracheal)
Pre- and retrotracheal, NOS:
- Precarinal
Pulmonary ligament
Subcarinal |
RN |
| 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 |
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998
(2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001.
(3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL)
