EOD Regional Nodes
Notes
**Note 1:** For head and neck schemas, this field includes all lymph nodes defined as Levels I-VII and Other.
**Note 2:** If laterality of lymph nodes is not specified, assume nodes are ipsilateral. Midline nodes are ipsilateral.
**Note 3:** For head and neck cancers, if lymph nodes are described only as "supraclavicular", try to determine if they are in Level IV (deep to the sternocleidomastoid muscle, in the lower jugular chain) or Level V (in the posterior triangle, inferior to the transverse cervical artery) and code appropriately. If the specific level cannot be determined, assume they are Level V nodes.
**Note 4:** Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.
| Code |
Description |
SS2018 N |
| 000 |
None
No regional lymph node involvement |
NONE |
| 300 |
Level I
- Level IA - Submental
- Level IB - Submandibular (submaxillary), sublingual
Level II - Upper jugular
- Jugulodigastric (subdigastric)
- Upper deep cervical
- Level IIA - Anterior
- Level IIB - Posterior
Level III - Middle jugular
- Middle deep cervical
Level IV - Lower jugular
- Jugulo-omohyoid (supraomohyoid)
- Lower deep cervical
- Virchow node
Level V - Posterior triangle group
- Posterior cervical
- Level VA - Spinal accessory
- Level VB - Transverse cervical, supraclavicular
Level VI - Anterior compartment group
- Laterotracheal
- Paralaryngeal
- Paratracheal - above suprasternal notch
- Perithyroidal
- Precricoid (Delphian)
- Prelaryngeal
- Pretracheal - above suprasternal notch
- Recurrent laryngeal
Level VII - Superior mediastinal group (for other mediastinal node(s), see EOD Mets)
- Esophageal groove
- Paratracheal - below suprasternal notch
- Pretracheal - below suprasternal notch
Other groups
- Cervical, NOS
- Deep cervical, NOS
- Facial
+ Buccinator (buccal)
+ Mandibular
+ Nasolabial
- Internal jugular, NOS
- Parapharyngeal
- Parotid
+ Infraauricular
+ Intraparotid
+ Periparotid
+ Preauricular
- Retroauricular (mastoid)
- Retropharyngeal
- Suboccipital |
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 medical 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)
