Global Period

The bundled time window after a procedure during which related E/M services are not separately billable. Major surgeries (90-day global) bundle pre-op visit (1 day before), surgery, and post-op care for 90 days. Minor procedures (10-day or 0-day global). XXX = not applicable. Modifier 24 is used for unrelated E/M during global period; Modifier 25 is for significant separate E/M same day as 0/10 day procedure; Modifier 57 is for E/M that resulted in decision for major surgery.