Hi there. I have encountered this as well. It seems that if you include the mixing logs from the antigen therapy as an attachment, they will reimburse, sometimes. Usually however, this paperwork can be quite lengthy so the claim may auto drop to paper and take longer to process. UHC/Optum/Oxford is the ONLY insurance company that is giving me an issue with 95165. We have also encountered numerous take-backs from them as well.