Free tool

EOB Denial Analyzer

Paste the denial line off any EOB or 835 remit. Get every CARC and RARC decoded, the combination interpreted, and the first move to make — instantly, with nothing leaving your browser.

Paste the denial line from your EOB or ERA — codes, remark codes, or the raw 835 segment

Runs entirely in your browser — nothing you paste is sent or stored anywhere.

Why read codes in combination?

The denial code (CARC) gives the category — "claim lacks information." The remark code (RARC) pinpoints which information. Working denials on the CARC alone is why claims get resubmitted three times instead of once. The analyzer applies both layers plus the group code, the same way our ERA reading guide teaches it. Ready to appeal? Draft it in the appeal letter generator.