I have received Remit Data for a patient showing denial code PI 204. Service not covered by current benefit plan. This is from AARP Supplemental Plan. In the Patient Resp section it does not show a patient resp but it is completely blank. I am 90% certain this can be billed to the patient. Possibly this supplement plan does not cover for the deductible from Medicare. Am I correct? My office manager seems to think we just write this off. Any advice would be appreciated. Thank you