Using Medical Billing Codes 70551-70553 for MRI and IAC Properly There are many times in medical billing when a patient receives both an IAC and brain MRI. The question is, can the medical biller be reimbursed for both of these services separately? If the medical billing personnel asked the American Medical Association this question, the answer would be simple. They would say that you can absolutely get separately reimbursed for an IAC and brain MRI in the same session. Realistically, however, this is not exactly true. The requirement to code for both x-rays is that they need two separate and distinct exams. Each exam is required to have distinct findings. …