Question: Texas Subscriber Answer: • Modifier 59 (Distinct procedural service) identifies procedures that are not normally reported together but were performed on a different body site or during a different procedure or surgical session, required a separate incision, were related to separate injuries, or were performed during different sessions or encounters. • Modifier 78 (Unplanned return to the operating/ procedure room by the same physician following initial procedure for a related procedure during the postoperative period) is often viewed as a surgical modifier, but some payers prefer its use. For example, Medica in Minnesota will reimburse separately for multiple anesthesia services provided on the same date of service for separate anesthesia encounters; the policy directs you to append modifier 78 to the code for the second anesthesia encounter. Before you code: