Modifier 25 Guidelines 2025. One bright spot included in cms’s final rule involves the requirement that patients must use. Which code to append it to and when to use the modifier.
Modifier 25 (significant, separately identifiable evaluation and management [e/m] service by the same physician on the same day of the procedure or other service) is the most. Use modifier 25 when an e/m service is performed on the same day as a procedure, a preventive medicine service, or other medical service or procedure.