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 300, 400, or 500, 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 - Regional lymph node(s), NOS - Lymph node(s), NOS
Code Description SS2018 N
000 No regional lymph node involvement NONE
300 Clinical evaluation only Ipsilateral regional lymph node(s) RN
400 Clinical evaluation only Bilateral or contralateral regional lymph node(s) RN
500 Pathological evaluation only Regional lymph node(s) involved 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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