I have my claims with A4221/A4222/A4223 denying due to missing modifier. We are billing with a GA modifier, because the patient does not meet the LCD for External Infusion Pumps, and Humana Medicare states to bill the same as Medicare. Is anyone else having this issue, or any ideas as to what modifier they are looking for?
Denial Code: N822 Missing procedure modifier(s).
Denial Code: N822 Missing procedure modifier(s).