When Dr. Kathy Cain saw an unfair insurance policy was reducing payment for her services in her home state of Kansas, she did not take it lying down. Instead, with the help of her physician networks, Cain was able to change the policy over years after a long search for her voice to be heard. This article provides a quick primer on medical coding and its potential manipulation, as well as a brief background of one of the major market leaders in the healthcare insurance industry and how one woman took them on—and won.