1. 9-digit Zip Code for the billing provider and service location (we
can help you set up a short cut on your desktop for USPS.com)
2. Pay to Address: PO Boxes are no longer allowed in the practice/provider loops/segments
2. Pay to Address: PO Boxes are no longer allowed in the practice/provider loops/segments
3. Special characters: do not use periods (.), number sign (#), colon (:), apostrophe (‘) or dash (-) in any field