(May 23, 2018, 12:36 PM EDT) -- DENVER — The 10th Circuit U.S. Court of Appeals on May 22 affirmed a lower federal court’s finding that an insurer had no duty to defend against an underlying class action or the Colorado attorney general’s investigation of a law firm insured because the underlying claims arose from billing practices, which are not professional services under the insurance policy (Evanston Insurance Company v. Law Office of Michael P. Medved, et al., No. 16-1464, 10th Cir., 2018 U.S. App. LEXIS 13270)....