EOD Primary Tumor

Notes

**Note 1:** Code the tumor with the greatest extension when there are multiple simultaneous tumors. **Note 2:** Full eyelid thickness (code 300) is defined as including skin, orbicularis muscle, tarsus and conjunctiva (palpebral).
Code Description SS2018 T
000 In situ, intraepidermal, intraepithelial, noninvasive Bowen disease IS
100 Lesion(s) confined to dermis Minimal infiltration of dermis Subcutaneous tissue (through entire dermis) Underlying orbicularis muscle Localized, NOS L
200 Eyelid margin Tarsal plate Tarsus L
300 Full eyelid thickness L
400 Bulbar conjunctiva Intraorbital structures, NOS Ocular structures Sclera Soft tissues of orbit RE
500 Bone/periosteum of orbit Bony walls of orbit (invades or evades through) Lacrimal sac Skeletal muscle (except orbicularis muscle in eyelid) Underlying cartilage RE
600 Brain Central nervous system (CNS) Nasal cavity Nasolacrimal duct Other craniofacial structures Paranasal sinus Further contiguous structures, NOS D
700 Adjacent structure(s), NOS RE
800 No evidence of primary tumor U
999 Unknown; extension not stated Primary tumor 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) Esmaeli, B., Finger, P.T., et al. **Eyelid Carcinoma**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 779-785