A listing of descriptive terms and identifying codes developed by the American Medical Association (AMA) for reporting practitioner services and procedures to medical plans and Medicare.
The number in a frequency distribution below which a certain percentage of fees will fall. For example, the 90th percentile is the number that divides the distribution of fees into the lower 90% and the upper 10%, or that fee level at which 90% of dentists charge that amount or less, and 10% more.