EOD Regional Nodes

Notes

**Note 1:** For head and neck schemas, this field includes all lymph nodes defined as Levels I-VII and Other by TNM. **Note 2:** If laterality of lymph nodes is not specified, assume nodes are ipsilateral. Midline nodes are considered 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, consider them as Level V nodes. **Note 4:** For codes 100-700, use the list below for named regional lymph nodes. If the only information available is “regional lymph nodes, NOS” or “lymph nodes,” code 800. **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 CLINICAL or PATHOLOGICAL Metastasis in a SINGLE ipsilateral lymph node 3 cm or smaller in greatest dimension Extranodal extension (ENE) negative or unknown RN
150 PATHOLOGICAL ONLY Metastasis in SINGLE ipsilateral node 3 cm or smaller in greatest dimension Extranodal extension (ENE) positive RN
200 CLINICAL or PATHOLOGICAL Metastasis in SINGLE ipsilateral node Larger than 3 cm but not larger than 6 cm in greatest dimension Extranodal extension (ENE) negative OR unknown RN
250 CLINICAL or PATHOLOGICAL Metastasis in MULTIPLE ipsilateral nodes No nodes larger than 6 cm in greatest dimension Extranodal extension (ENE) negative or unknown RN
300 CLINICAL or PATHOLOGICAL Metastasis in bilateral or contralateral lymph node(s) No nodes larger than 6 cm in greatest dimension Extranodal extension (ENE) negative OR unknown RN
400 CLINICAL or PATHOLOGICAL Metastasis in a lymph node larger than 6 cm in greatest dimension Extranodal extension (ENE) negative OR unknown RN
450 CLINICAL ONLY Metastasis in any lymph node(s) with clinically overt ENE RN
500 PATHOLOGICAL ONLY Metastasis in a SINGLE ipsilateral node Larger than 3 cm in greatest dimension Extranodal extension (ENE) positive RN
600 PATHOLOGICAL ONLY Metastasis in MULTIPLE ipsilateral, contralateral, or bilateral nodes Extranodal extension (ENE) positive for any node RN
700 PATHOLOGICAL ONLY Single contralateral node 3 cm or smaller 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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