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 either direct extension from the primary tumor or mediastinal lymph node involvement * If these manifestations are caused by direct extension of the primary tumor, code as primary tumor involvement (EOD Primary Tumor, code 650) * If the primary tumor is peripheral and clearly unrelated to vocal cord paralysis, SVC obstruction, or compression of the trachea, or the esophagus, these manifestations are secondary to lymph node involvement; code as mediastinal lymph node involvement (EOD Lymph Nodes, code 400) * If unable to determine if these manifestations are due to direct extension or mediastinal lymph node involvement, record as mediastinal lymph node involvement (EOD Lymph Nodes, code 400) **Note 3:** Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.
Code Description SS2018 N
000 No regional lymph node involvement NONE
300 IPSILATERAL nodes only Bronchial - Peri/parabronchial Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Intrapulmonary - Interlobar - Lobar - Segmental - Subsegmental 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 - Periesophageal - Pericardial - Posterior (tracheoesophageal) - Precarinal - Pretracheal, NOS - Superior mediastinal + Paratracheal (left, right, upper, low, NOS) - Azygos (lower paratracheal) + Prevascular + Retrotracheal RN
600 IPSILATERAL or CONTRALATERAL Low cervical Proximal root Scalene (inferior deep cervical) Sternal notch Supraclavicular (transverse cervical) D
700 CONTRALATERAL OR BILATERAL Bronchial - Peri/parabronchial Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) - Interlobar - Lobar - Segmental - Subsegmental Mediastinal - Anterior - Aortic (above diaphragm), NOS + Peri/para-aortic, NOS * Ascending aorta (phrenic) + Subaortic (aortic-pulmonary window) - Inferior mediastinal + Paraesophageal + Pulmonary ligament + Subcarinal - Periesophageal - Pericardial - Posterior (tracheoesophageal) - Precarinal - Pretracheal, NOS - Superior mediastinal + Paratracheal (left, right, upper, low, NOS) - Azygos (lower paratracheal) + 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 medical record Death Certificate Only U
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