EOD Regional Nodes
This input is used for staging
Notes
**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets.
**Note 2:** Nodal metastasis is very rare in gastrointestinal stromal tumors (GISTs) and surgeons generally agree that nodal dissection is not indicated. In the absence of information on regional lymph node status for a localized tumor, code as none (000).
**Note 3:** See the chapter (schema) corresponding to the primary site for information about regional nodes. For example: For primary colon GIST, see the colon chapter (schema) for regional nodes information.
* C150-C155, C158-C159 Esophagus
* C170-C172, C178-C17: Small Intestine
* C160-C166, C168-C169 Stomach
* C181 Appendix-Carcinoma
* C180, C182-C189, C199, C209 Colon and Rectum
* C480-C482, C488 Retroperitoneum
Default
999
| Code |
Description |
SS2018 N |
| 000 |
No regional lymph node involvement |
NONE |
| 300 |
Regional lymph node metastases (see Note 3) |
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 |
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998
(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: 3-30
(5) Pollock, R.E., Maki, R.G. **Introduction to Soft Tissue Sarcoma**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 489-497
(6) DeMatteo, R.P., Maki, R.G., Pollock, R.E., et al. **Gastrointestinal Stromal Tumor**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 523-529
