Which modifier does the principal physician of record typically use with the Evaluation and Management (E/M) code when billed?

The principal physician of record typically uses modifier AI when billing for Evaluation and Management (E/M) codes. Modifier AI is specifically designated for "principal physician of record" and identifies that the physician providing the service is the one primarily responsible for the care of the patient. This is particularly important in contexts where multiple providers may be involved in a patient's care, as it clarifies the lead physician's role in the patient's treatment.

Using this modifier enhances the clarity of the medical billing process, demonstrating to payers which provider is accountable for the overall management of the patient's care. It ensures that the claims reflect accurate information regarding the provider's responsibilities, which can be vital for reimbursement considerations and ensuring compliance with payer requirements.