EOD Regional Nodes

Notes

**Note:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **The following lymph nodes are regional for Head and Neck tumors** **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
Code Description SS2018 N
000 No regional lymph node involvement NONE
100 Metastasis in a SINGLE ipsilateral lymph node 3 cm or smaller in greatest dimension Extranodal extension (ENE) negative or unknown RN
150 Metastasis in SINGLE ipsilateral node 3 cm or smaller in greatest dimension Extranodal extension (ENE) positive RN
200 Metastasis in SINGLE ipsilateral node Larger than 3 cm but not larger than 6 cm in greatest dimension Extranodal extension (ENE) negative RN
250 Metastasis in MULTIPLE ipsilateral nodes, No nodes larger than 6 cm in greatest dimension Extranodal extension (ENE) negative or unknown RN
300 Metastasis in bilateral or contralateral lymph node(s) No nodes larger than 6 cm in greatest dimension Extranodal extension (ENE) negative RN
400 Metastasis in a lymph node larger than 6 cm in greatest dimension Extranodal extension (ENE) negative RN
500 Metastasis in a SINGLE ipsilateral node Larger than 3 cm in greatest dimension Extranodal extension (ENE) positive RN
600 Metastasis in MULTIPLE ipsilateral, contralateral, or bilateral nodes Extranodal extension (ENE) positive for any node RN
700 PATHOLOGICAL ONLY Single contralateral node (any size) Extranodal extension (ENE) positive 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
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