I apologize in advance if this is not the correct subreddit for this question.
I am a practice manager for a PCP, so I have experience with processing prior authorizations, but not with billing. I had a Brain MRI and a CTA of the head and neck w/ w/o contrast on 03/05/2026. As I understand, starting 01/01/2026, the latter is supposed to be billed under CPT 70471. I received a bill from the radiologist for $152.75 on 04/06/2026, and paid it on 04/29/2026. The explanation of benefits from my insurance, however, states the claim as a CTA of the head (CPT 70496). Now, on 05/26/2026, the radiologist is sending me another bill for a CTA of the neck (CPT 70498).
When I was making the appointment, the receptionist mentioned that the CT would be billed as 2 separate exams; I corrected her and provided her with the correct CPT code. She put me on hold, then said I was correct and scheduled the appointment.
The bill I received today has a line that states "Adjustment", but according to Cigna, they never received a claim for CPT 70498. Cigna called MedSolutions, and MedSolutions told them that they did receive a claim for CPT 70498, but that it was not sent to Cigna because the provider had not obtained prior authorization. Since it has been more than 60 days, they also cannot get authorization retroactively to cover payment for this code.
So what I understand is this: the provider should have billed this service as a 70471. Instead, they tried billing it as a 70496 and 70498. MedSolutions denied the latter because doing so required prior authorization, and only sent the claim for 70496 to Cigna. Now, the provider is trying to cover their mistake by billing me directly for the 70498. The "Adjustment" line makes no sense because Cigna never even received the claim. What are they basing this adjustment on? This bill also doesn't contain the blurb about the balance being applied to my annual deductible/coinsurance; obviously it wouldn't, since Cigna has no record of it!
I have filed a complaint through my health insurance. I have also sent a letter via certified mail to the Radiologist's billing department which includes a copy of my EOB from Cigna and the receipt of payment for the services listed on my EOB. What are my next steps in getting this resolved? If anyone has any clarification on this matter, I would greatly appreciate it.