EOD Primary Tumor

Notes

**Note:** Code 300 If there is fixation of hemilarynx or larynx.
Code Description SS2018 T
000 In situ, intraepithelial, noninvasive IS
100 Any size tumor confined to one site WITHOUT fixation - Laryngopharynx - Postcricoid area - Posterior pharyngeal wall - Pyriform sinus Confined to hypopharynx Localized, NOS L
150 Any size tumor confined to more than one subsite in code 100 - WITHOUT fixation L
200 Any size tumor with extension to - Hemilarynx WITHOUT fixation - Oropharynx WITH or WITHOUT fixation Any structure listed in code 100 with fixation RE
300 Esophageal mucosa Fixation of hemilarynx or larynx RE
400 Central compartment soft tissues of neck including - Prelaryngeal strap muscle(s) - Subcutaneous fat Cricoid cartilage Esophageal muscle Extrinsic muscle of tongue Fixation of oropharynx Hard palate Hemilarynx Mandible Medial pterygoid Oropharynx Prevertebral fascia/muscle(s) Soft tissues of neck Thyroid cartilage/gland RE
500 Hyoid bone D
600 Carotid artery (encased) RE
700 Base of tongue Floor of tongue Mediastinal structure(s) Nasopharynx Further contiguous extension D
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) Lydiatt, W.M., Patel, S.G., Shah, J.P., et al. **Staging Head and Neck Cancers**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 55-65 (6) Lydiatt, W.M., Ridge, J.A., Shah, J.P., et al. **Oropharynx (p16-) and Hypopharynx**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 123-135