Oregon Subscriber
Answer: Adding modifier -57 (Decision for surgery) to an E/M service that is performed before the global preoperative period begins serves no purpose. Modifier -57 should be used to lift an E/M service performed the day of or day before major surgery out of the global package when the decision for surgery resulted during that encounter. It does not need to be appended to an E/M service that is not performed during the global period.