We're all set for 5010 for our EDI billing. However, I have a few patients that a couple of my clients have a special contract with a certain insurance company. For these particular claims, according to patient policies, I have to send in a paper claim along with progress notes for each visit. The Pay-To box 33 is to a P.O. Box address. The Insurance Co does have the physical address on file. But there is no way to put a physical address into box 33 if you want payment to go to P. O. Box. Are the 1500 forms going to be revised? Should I just keeping filing as usual - 1500 claim form with notes attached (on paper)?