Which of the following BEST defines Modifier 24?

A. This modifier should be appended to the performed E/M service when an agency, company, or organization requests the performance of an E/M service to indicate that the patient, patient's family or other physician did not initiate the performed E/M service
B. This modifier should be appended to the performed E/M service when it is performed during the postoperative period, and the physician who performs the E/M service is also the same physician who performed the surgery and the performed E/M service is unrelated to the surgery that had been performed.
C. This modifier should be appended to the performed E/M service when the E/M service is a) performed on the same day as another procedure or service, or b) in conjunction performed by a physician who also performs a completely distinct, independent, noteworthy service or minor procedure on the same day.
D. This modifier should be appended to the performed E/M service when the E/M service results in the decision to perform major surgery less than 24 hours before the actual surgery is actually performed and the E/M service that led to the decision for surgery was the first identification that major surgery was required.

B