Which modifier is relevant for indicating a provider's sole focus on preoperative care?

Modifier 56 specifically indicates that a provider is solely responsible for the preoperative management of a patient. This modifier is applied when the surgeon does not perform the surgical procedure but has provided the preoperative care. By using Modifier 56, it becomes clear that the services rendered are limited to the evaluation and management of the patient leading up to the surgery.

Modifier 54 refers to postoperative management by a surgeon when the procedure has been completed elsewhere, while Modifier 55 pertains to postoperative care provided following a surgical procedure that is performed by another provider. Modifier 53 is used to indicate that a procedure was partially reduced or canceled due to extenuating circumstances, rather than focusing on preoperative care. Therefore, Modifier 56 is the most appropriate choice for delineating a provider's exclusive engagement in preoperative activities.