What modifier is used for initial IP codes designated by the admitting physician?

The modifier used for initial inpatient (IP) codes designated by the admitting physician is the AI modifier. This modifier specifically indicates that the physician is the principal provider of care for a patient admitted to the hospital. By attaching the AI modifier, it is clear that the services rendered are part of the initial evaluation and management of the patient during their inpatient stay.

This is crucial in ensuring proper reimbursement and compliance with coding standards, as it signifies that the care rendered is comprehensive and falls under the responsibility of the admitting physician. Additionally, proper use of modifiers helps to convey specific details about the nature of the service, thus aiding in more accurate coding and billing procedures in the context of inpatient services.

The other modifiers listed do not serve this particular purpose regarding initial inpatient codes by the admitting physician.