EOD Primary Tumor

Code	Description	SS2018 T
000	In situ: intraepithelial, noninvasive	IS
100	Confined to tissue or organ of origin Subcutaneous tissue Localized, NOS	L
200	Adjacent connective tissue Adjacent organ(s)/structure(s) - Epididymis (from other site) - Penis - Prostate - Seminal vesicle (from other site) - Skeletal muscle (scrotum only) - Spermatic cord (vas deferens) (from other site) - Testis - Tunica vaginalis (from other site)	RE
700	Other organ(s) and structure(s) in male pelvis - Bladder - Bone (axial or appendicular skeleton) (scrotum only) - Rectum - Underlying cartilage (scrotum only) - Urethra Further contiguous extension	D
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)