EOD Regional Nodes

This input is used for staging

Notes

**Note 1:** **Regional nodes and nodes, NOS** * Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **Note 2:** **Psammoma bodies only** * Psammoma bodies are counted as positive regional lymph nodes **Note 3:** **Lymph nodes, NOS** * Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.

Default

999

NAACCR Item

NAACCR #774

Code	Description	SS2018 N
000	MICROSCOPIC assessment only No regional lymph node involvement CYTOLOGICALLY or HISTOLOGICALLY confirmed to be benign node(s)	NONE
050	CLINICAL assessment only No regional lymph node involvement RADIOLOGICALLY or CLINICALLY confirmed	NONE
070	UNKNOWN if clinical or microscopic assessment No regional lymph node involvement	NONE
300	Unilateral or bilateral lymph nodes Level VI nodes - Anterior compartment group - Laterotracheal - Paralaryngeal - Paratracheal - above suprasternal notch - Perithyroidal - Precricoid (Delphian) - Prelaryngeal - Pretracheal - above suprasternal notch - Recurrent laryngeal Level VII nodes-Superior mediastinal group (for other mediastinal node(s) see EOD Mets) - Esophageal groove - Paratracheal - below suprasternal notch - Pretracheal - below suprasternal notch	RN
400	Unilateral, bilateral, or contralateral lymph nodes Level I - Level IA - Submental - Level IB - Submandibular (submaxillary), sublingual Facial - Buccinator - Mandibular - Nasolabial Parotid - Infraauricular - Intraparotid - Periparotid - Preauricular Level II - Upper jugular - Jugulodigastric (subdigastric) - Upper deep cervical - Level II A - Anterior - Level II B - Posterior Level III - Middle jugular - Middle deep cervical Level IV - Lower jugular - Jugulo-omohyoid (supraomohyoid) - Lower deep cervical - Level VB - Transverse cervical, supraclavicular Level V - Posterior triangle group - Posterior cervical - Level VA - Spinal accessory Other lymph nodes - Cervical, NOS - Deep cervical, NOS - Internal jugular, NOS - Parapharyngeal - 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) (4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017 (5) Rosen, J.E., Lloyd, R.V., Perrier, N.D., et al. **Thyroid - Medullary**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017