SEER Inquiry System - Report
Produced: 11/04/2025 1:27 AM
Question 20031030
Inquiry Details
References:
www.ada.org. Tooth Numbering System
Question:
        Primary Site--Head & Neck: What is the primary site for a tumor location described as being in the "gingiva between teeth #s 18 and 19?
    
Discussion:
Answer:
Code the primary site as C03.1, lower gum.
According to the system used by the American Dental Association, tooth #18 and tooth #19 are lower. Teeth #1-16 are upper. Teeth #17-32 are lower.
Cancer Site Category:
        Head & Neck
    
Data Item Category:
        Primary site
    
Other Category:
        N/A
    
Year:
        2003
    
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