EOD Primary Tumor

This input is used for staging

Notes

**Note:** Connective tissues large enough to be given a specific name are considered adjacent structures. For example, prevertebral fascia and jugular vein have names. Continuous tumor growth from one organ into an adjacent named structure is coded to regional.

Default

999

NAACCR Item

NAACCR #772

Code	Description	SS2018 T
000	In situ, intraepithelial, noninvasive	IS
100	Confined to tissue or organ of origin Localized, NOS	L
200	More than one region of pharynx involved - Hypopharynx - Nasopharynx - Oropharynx Pharynx and oral cavity involved Extension to adjacent structure(s) Fixation	RE
700	Further contiguous extension:	D
800	No evidence of primary tumor	U
999	Unknown; extension cannot be assessed 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)