EOD Primary Tumor

Notes

**Note 1:** Uveal melanomas arise most commonly in the choroid, less frequently in the ciliary body, and least often in the iris. Melanomas of the iris tend to be small, and those arising from or extending to the ciliary body typically are large. **Note 2:** Discrete tumor deposit(s) in the orbit that are not contiguous to the eye are recorded in lymph nodes (See EOD Regional Nodes).
Code Description SS2018 T
000 In situ, intraepithelial, noninvasive IS
100 Limited to iris not more than 3 clock hours in size L
150 Limited to iris more than 3 clock hours in size L
200 Limited to iris WITH melanomalytic (secondary) glaucoma L
250 Limited to iris, NOS Localized, NOS L
300 Tumor confluent with or extending into ciliary body - WITHOUT secondary glaucoma L
350 Tumor confluent with or extending into ciliary body AND choroid - WITHOUT secondary glaucoma L
400 Tumor confluent with or extending into ciliary body, choroid or both - WITH secondary glaucoma L
450 Tumor confluent with or extending into ciliary body, choroid or both - Presence of secondary glaucoma unknown L
500 Tumor confluent with or extending into ciliary body, choroid or both - WITH scleral extension L
550 Tumor WITH extrascleral extension - LESS than or equal to 5 mm in diameter RE
600 Tumor WITH extrascleral extension - MORE than 5 mm in diameter RE
650 Tumor WITH extrascleral extension - Measurement of diameter not specified Adjacent extraocular extension RE
700 Further contiguous extension RE
800 No evidence of primary tumor U
999 Unknown; extension not stated 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) Kivelä, T., Finger, P.T., et al. **Uveal Melanoma**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017