EOD Regional Nodes

This input is used for staging

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.

Default

999

NAACCR Item

NAACCR #774

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 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)