Provider Billed Insurance Incorrectly

Hey everyone, my second post here in such a short time, thanks for being helpful with the first.

I have BCBS Blue Options PPO. I was having some neck swelling a week or so ago, so went to a clinic (in-network/preferred) where they did an ultrasound on my lymph nodes.

I just logged into my insurance site today to see my claim/EOB with a NOT PAID designation, and at the bottom, it says “There is an error in the coding on the claim. The diagnosis codes used on the claim do not follow ICD-10-CM guidelines. The provider cannot bill you for the added amount caused by this error.”

I called the provider and the person I spoke to didn’t even know what ICD-10-CM was, they had me repeat it three times. They seemed confused and said I needed to wait for the EOB document… which I explained I had right in front of me. I’m not confident they left the conversation knowing what was going on.

I called BCBS who basically just said to wait to see if I get a bill from the provider.

Has this happened to anyone? Do I have to do anything else at this time?