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:** Regional lymph nodes include - Buccinator (buccal) - Cervical, NOS - Facial, NOS - Intraparotid - Nasolabial - Parotid + Infra-auricular + Preauricular - Submandibular [submaxillary] - Submental - Supraclavicular, NOS **Note 3:** Code 800 if regional lymph nodes are involved but there is no indication of the number of nodes involved and/or size.
Code Description SS2018 N
000 No regional lymph node involvement NONE
100 SINGLE ipsilateral lymph node (less than or equal to 3 cm in greatest dimension) based on clinical evaluation or imaging findings RN
200 SINGLE ipsilateral lymph node (less than or equal to 3 cm in greatest dimension) based on lymph node biopsy RN
300 SINGLE ipsilateral lymph node (less than or equal to 3 cm in greatest dimension) unknown how determined RN
400 SINGLE ipsilateral lymph node (greater than 3 cm in greatest dimension) or MULTIPLE ipsilateral lymph nodes based on clinical evaluation or imaging findings RN
500 SINGLE ipsilateral lymph node (greater than 3 cm in greatest dimension) or MULTIPLE ipsilateral lymph nodes based on lymph node biopsy RN
600 SINGLE ipsilateral lymph node (greater than 3 cm in greatest dimension) or MULTIPLE ipsilateral lymph nodes, unknown how determined RN
700 Supraclavicular, NOS 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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