I bill for a hospital based,reading radiologist. Medicare denied a cxr, saying it's because the referring physician was a chiropractor. I was told to resubmit the charge & put my Dr. as the referring. My Dr. happened to be out during that timeframe & I was billing with a -Q6. How can he be the referring Dr. when he wasn't there & can a reading rad self-refer unless it is to order a more thorough test because they see a problem?