EOD Regional Nodes
Notes
**Note 1:** **Regional nodes and nodes, NOS**
* 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:** **Lymph nodes, NOS**
* 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 |
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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(2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001.
(3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL)
(4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
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