Question: South Carolina Subscriber Answer: Yes, you should append modifier 57 (Decision for surgery) to 99253 (Inpatient consultation for a new or established patient ...) in this case. CPT's modifier 57 definition states you should append it to an E/M "service that resulted in the initial decision to perform the surgery," as in your example. 'Major' must: And Medicare instructs carriers that E/M services "on the day before major surgery or on the day of major surgery that result in the initial decision to perform the surgery are not included in the global surgery payment for the major surgery and, therefore, may be billed and paid separately" (Medicare Claims Processing Manual, Chapter 12, Section 40.2).