835 CARC and RARC Denial Codes in Plain English
See the payer's code, a readable explanation, and the claim details behind the adjustment or denial.
Reviewed August 15, 2026
Direct answer: CARC codes explain why a payer adjusted a claim payment. RARC codes add remark details. A readable 835 dashboard can keep the payer's denial code visible and add a simple English explanation beside the affected claim.
What CARC means
CARC stands for Claim Adjustment Reason Code. In an 835 ERA file, CARC values explain the reason a billed amount differs from the paid amount. Examples include contractual adjustments, missing information, prior authorization issues, or patient responsibility.
What RARC means
RARC stands for Remittance Advice Remark Code. RARC values provide additional context about the adjustment or denial. They often explain what documentation, authorization, or billing correction may be needed.
Why dashboards help
Raw ERA files can contain many reason codes across many claims. A readable dashboard helps billing staff see the full claim list, separate paid and denied claims, group results by rendering-provider NPI when present, and open the claims behind each provider.
- See every paid and denied claim in the 835
- Keep the payer's original denial code visible
- Read a simple English explanation beside the code
- Compare total billed and total paid amounts
- Open the claim behind the denial
What a useful plain-English explanation includes
The explanation should translate the denial code without hiding the payer's original response. Billing staff should still be able to see the original code and the affected claim in the 835 breakdown.
Turn payer codes into readable claim review
One Care Portal ERA Dashboard shows denial codes with simple English explanations, all claims, billed-versus-paid totals, and rendering-provider NPI views.
See the standalone ERA Dashboard