Choosing whether to use a modifier (either -25 or -57) can mean the difference between getting paid for your E/M service or settling for just the procedure fee. Judy Richardson, RN, MSA, CCS-P, a senior consultant at Hill and Associates in Wilmington, N.C., offers this handy checklist:
- The ob-gyn decides to perform the procedure at the same encounter as the E/M service, regardless of the diagnosis (use modifier -57 for major procedures [>90 global days] or modifier -25 for minor procedures [<90 global days])
OR
- The E/M service and the procedure have different diagnoses (append modifier -25 to the E/M code with a minor procedure or modifier -57 for a major procedure).
- The ob-gyn decides to perform the procedure at a different encounter than the one during which he performs the procedure
OR
- The E/M service did not require a significant history, physical exam and/or medical decision-making.