EOD Primary Tumor

Code Description SS2018 T
000 In situ: Noninvasive; intraepithelial IS
100 Limited to - Ampulla of Vater - Sphincter of Oddi L
150 Duodenal submucosa Perisphincteric invasion (invasion beyond sphincter of Oddi) L
200 Confined to ampulla, NOS Localized, NOS L
250 Muscularis propria of duodenum (duodenal wall) Duodenum, NOS RE
300 Pancreas (less than or equal to 0.5 cm) RE
400 Pancreas (greater than 0.5 cm) Duodenal serosa RE
450 Periduodenal soft tissue Peripancreatic soft tissue D
500 Common bile duct Extrahepatic bile duct(s) Gallbladder Hepatic flexure of colon Lesser omentum Liver (including porta hepatis) Pancreas, NOS (depth of invasion not stated) Stomach (distal, proximal, NOS) Transverse colon RE
600 Blood vessel(s) (major) - Common hepatic artery - Celiac (axis) artery - Superior mesenteric artery RE
700 Periduodenal or peripancreatic soft tissue with involvement of structures in codes 500 or 600 OR Further contiguous extension D
800 No evidence of primary tumor U
999 Unknown extension Primary tumor cannot be assessed Not documented in medical 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 (5) Herman, J.M., Pawlik, T.M., Vauthey, J.N., et al. **Ampulla of Vater**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017