If the treating doctor believes you have permanent impairment as a result of your workers compensation injury, the doctor will use a guide book written by the American Medical Association to determine what percentage of your body is permanently impaired. The attorneys at Allison & Ward have forty years of combined experience in reviewing and disputing impairment ratings. The lawyers at Allison & Ward help their clients understand impairment ratings and how to dispute an incorrect impairment rating. If you have received an impairment rating contact our office as soon as possible—there are time deadlines to dispute incorrect impairment ratings before they become final.