EOD Regional Nodes

Notes

**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **Note 2:** Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.
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 No regional lymph node involvement UNKNOWN how confirmed 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 Groups - Parapharyngeal - Retroauricular (mastoid) - Retropharyngeal - Suboccipital Cervical, NOS Deep cervical, NOS Internal jugular, NOS 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
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