EOD Mets
Notes
**Note 1:** Use code 50 only when there are liver metastasis WITH other metastatic involvement.
* If there are multiple distant mets but liver is not one of them, code 30.
**Note 2:** Use code 70 when the only information is “distant metastasis, NOS,” and there is no documentation regarding the specific metastases.
* If there are specific metastasis documented that are not listed in codes 10, 20, or 30, assign code 30 for “other specified distant metastasis.”
| Code |
Description |
SS2018 M |
| 00 |
No distant metastasis
Unknown if distant metastasis |
NONE |
| 10 |
Liver (including liver parenchymal nodule(s)) |
D |
| 20 |
Distant lymph node(s)
- Hepatoduodenal (all subsites EXCEPT lesser curvature)
- Intra-abdominal
- Mesenteric (inferior, superior, NOS)
- Middle colic
- Pancreaticoduodenal (all subsites EXCEPT greater curvature)
- Para-aortic
- Porta hepatic (portal) (hilar) (in hilus of liver)
- Retropancreatic
- Retroperitoneal
- Distant lymph node(s), NOS |
D |
| 30 |
At least one extrahepatic site
- Bone
- Lung
- Ovary(ies)
- Peritoneum
Other specified distant metastasis (except liver)
Carcinomatosis
WITH or WITHOUT distant lymph node(s) |
D |
| 50 |
Liver WITH other distant metastasis
(10) + (20 or 30) |
D |
| 70 |
Distant metastasis, NOS |
D |
| 99 |
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
(5) Woltering, E.A., Bergsland, E.K., et al. **Neuroendocrine Tumors of the Stomach**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
(6) **Neuroendocrine Tumors of the Stomach,** from the AJCC Cancer Staging System Version 9 (2023). Used with permission of the American College of Surgeons, Chicago, Illinois.
