AGAR Guide
RARCN111ReferenceCurrentVerified Aug 15, 2026

RARC N111

AR Guide Workflow

Duplicate Claims

The payer identified the claim as a duplicate of a previously processed claim. Verify the original before doing anything — this is often a no-action item.

Open denial workflow

AR Guide explanation

What it means

No appeal right except for a duplicate claim/service issue; the service was included in a previously billed claim.

AR Guide knowledge

Common denial category

Duplicate Claims — The payer identified the claim as a duplicate of a previously processed claim. Verify the original before doing anything — this is often a no-action item.

AR Guide knowledge

Common usage

  • Duplicate claim denials (often with CARC 18)

About this guidance: Note

AR Guide knowledge is general reference content written by our team — it is not payer-specific policy and never replaces the payer’s documentation or your contract. Always confirm specifics with the payer.

Reference

Commonly paired CARCs

CARCs this remark commonly accompanies on the ERA/EOB, per the AR Guide pairing data.

  • CARC18Exact duplicate claim/service (Use only with Group Code OA except where state workers' compensation regulations requires CO)

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