Denial Code Database
Searchable Denial Code Directory
Look up CO, PR, OA, and PI adjustment combinations with current CARC reasons, practical investigation steps, and payer guidance — all in one place.
Why PI is here now: CO, PR, OA, and PI are Claim Adjustment Group Codes. The number is the CARC reason. DenialPro lets you search combinations such as PI16, PI96, or PI253, then teaches you to read the group + CARC + RARC together instead of treating PI as a separate reason-code list.
Showing 988 of 988 codes
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