I've been receiving denials for patients PSAs with Z85.46 (personal history of prostate cancer). Some commercial insurance companies, including BCBS, is considering this as routine services and is patient's responsibility. I don't understand how this is considered routine services and what is the best course to appeal this denial. I cannot change the diagnosis code to C61 because the patients have received treatment, ie; prostatectomy, HDR, and there is no evidence of disease and is not being actively treated for prostate cancer and my physicians are only monitoring the PSA. So my question is how can I fix this??