Our doc previously tried to do a procedure, but had to stop as he could not even put the guidewire into the vessels to do the percutaneous surgery. We billed the claim as 37220-53, to indicate that it was discontinued. It has been denied and/or not paid. I'm thinking that because there was really nothing done, we can't really charge anything in the first place. But I want to know what others think first. We're sending it to Medicare, and I'm not sure on their policies with discontinued services. Can or should we fight it? Or can I go ahead and just write it off?