Denial Code Lookup — Complete CARC Guide
Every denial code with step-by-step solutions — search by code number, keyword, or filter by type
All 358 CARC codes — updated 2025 — with full resolution steps
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All codes
CO — Contractual
PR — Patient Resp.
OA — Other Adj.
PI — Payer Initiated
All categories
Coding Errors
Authorization
Eligibility
Timely Filing
Duplicate
Medical Necessity
Contractual
Patient Responsibility
Coordination of Benefits
Documentation
CO = Provider writes off
PR = Bill the patient
OA = No action / write off
PI = Payer initiated
Showing all 358 denial codes