New Subsets of Modifier 59
Modifier 59 is used in the outpatient therapy setting to identify when one intervention was provided at a separate and distinct time from another intervention by one discipline to the same Medicare beneficiary during the same treatment session or same date of service when multiple disciplines treat the Medicare patient within the same organization (non-private practice setting or incident-to-physician). Modifier 59 is not only the most commonly used modifier, but is also the most abused modifier that is utilized. Due to this, the Centers for Medicare and Medicaid Services (CMS) has defined four new HCPCS modifiers to selectively identify subsets