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:** "Vocal cord paralysis," "superior vena cava syndrome," and "compression of the trachea or the esophagus" are classified as mediastinal lymph node involvement (code 400) unless there is a statement of involvement by direct extension from the primary tumor.
Code Description SS2018 N
000 No regional lymph node involvement NONE
300 IPSILATERAL nodes only Bronchial Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Intrapulmonary - Interlobar - Lobar - Segmental - Subsegmental Peri/parabronchial RN
400 IPSILATERAL nodes only Carinal (tracheobronchial) (tracheal bifurcation) Mediastinal, ipsilateral or NOS - Anterior - Aortic (above diaphragm), NOS + Peri/para-aortic, NOS * Ascending aorta (phrenic) + Subaortic (aortic-pulmonary window) - Inferior mediastinal + Paraesophageal + Pulmonary ligament + Subcarinal - Posterior (tracheoesophageal) - Superior mediastinal + Paratracheal (left, right, upper, low, NOS) + Prevascular + Retrotracheal - Periesophageal - Pericardial Peritracheal, NOS - Azygos (lower peritracheal) Precarinal Pretracheal, NOS RN
600 IPSILATERAL or CONTRALATERAL Low cervical Proximal root Scalene (inferior deep cervical) Sternal notch Supraclavicular (transverse cervical) D
700 CONTRALATERAL OR BILATERAL Bronchial Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Mediastinal - Anterior - Aortic (above diaphragm), NOS + Peri/para-aortic, NOS * Ascending aorta (phrenic) + Subaortic (aortic-pulmonary window) - Inferior mediastinal + Paraesophageal + Pulmonary ligament + Subcarinal - Periesophageal - Posterior (tracheoesophageal) - Pretracheal - Superior mediastinal + Paratracheal (left, right, upper, low, NOS) + Prevascular + Retrotracheal D
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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