ERA / 835

The Electronic Remittance Advice (ERA), transmitted as an ANSI X12 835 transaction set, is the electronic version of the EOB sent to providers. It contains the same CARC and RARC codes as the paper EOB. Most billing software and clearinghouses can display and export 835 files. The 835 is the most reliable source for denial code data because paper EOBs sometimes omit remark codes.