Summary Stage 2018: Nasopharynx
Summary Stage 2018
Notes
**Nasopharynx**
C110, C112-C113, C118-C119: 8000-8700, 9700-9701
C111 and Schema Discriminator 1: Nasopharynx/PharyngealTonsil: 1 (8000-8700, 9700-9701)
C110-C113, C118-C119
C110 Superior wall of nasopharynx
C111 Posterior wall of nasopharynx (excluding pharyngeal tonsil)
C112 Lateral wall of nasopharynx
C113 Anterior wall of nasopharynx
C118 Overlapping lesion of nasopharynx
C119 Nasopharynx, NOS
**Note 1:** The following sources were used in the development of this chapter
* SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998) (https://seer.cancer.gov/archive/manuals/EOD10Dig.3rd.pdf)
* SEER Summary Staging Manual-2000: Codes and Coding Instructions (https://seer.cancer.gov/tools/ssm/ssm2000/)
* Collaborative Stage Data Collection System, version 02.05: https://cancerstaging.org/cstage/Pages/default.aspx
* Chapter 9 *Nasopharynx*, in the AJCC Cancer Staging Manual, Eighth Edition (2017) published by Springer International Publishing. Used with permission of the American College of Surgeons, Chicago, Illinois.
**Note 2:** See the following chapters for the listed histologies
* C111 and Schema Discriminator 1: Nasopharynx/PharyngealTonsil: 2 (8000-8700, 9700-9701): **Oropharynx (p16-)* and *Oropharynx HPV-Mediated (p16+)*
* 8710-8714, 8800-8934, 8940-9137, 9141-9582: *Soft Tissue*
* 8720-8790: *Melanoma Head and Neck*
* 8935-8936: *GIST*
* 9140: *Kaposi Sarcoma*
**Note 3:** The Schema Discriminator *Nasopharynx/Pharyngeal Tonsil* is used to discriminate between Posterior wall of nasopharynx (adenoid) and Pharyngeal tonsil which are coded to ICD-O-3 code C111
(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) Lee, A.W.M., Lydiatt, W.M., Shah, J.P., et al. **Nasopharynx**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 103-111