EOD Mets
Notes
**Note:** Peritoneal spread is common in appendiceal tumors and is coded as 30 if limited to the peritoneum. Peritoneal implants involving abdominopelvic organs, such as the serosa of the small or large bowel and the surface of the ovary, spleen, or liver, should be coded as 30, regardless of whether implants demonstrate infiltration of underlying tissue, manifested as invasion. Nonperitoneal metastasis, such pleuropulmonary involvement is rare and would be coded as 50.
| Code |
Description |
SS2018 M |
| 00 |
No distant metastasis
Unknown if distant metastasis |
NONE |
| 10 |
Intraperitoneal acellular mucin
- WITHOUT peritoneal mucinous deposits containing tumor cells or UNKNOWN |
D |
| 30 |
Intraperitoneal metastasis
- WITH or WITHOUT peritoneal mucinous deposits containing tumor cells |
D |
| 50 |
Distant metastasis other than peritoneum
Distant lymph node(s)
- Inferior mesenteric
- Superior mesenteric
- Distant lymph node(s), NOS
Intraperitoneal spread plus distant lymph node(s)
Non-peritoneal metastasis
Carcinomatosis
Distant metastasis WITH or WITHOUT distant lymph node(s) |
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: 3-30
(5) Overman, M.J., Jessup, J.M., et al. **Appendix - Carcinoma**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 237-250
