Claim/Service denied. At least one Remark Code must be provided (may be comprised of either the NCPDP Reject Reason Code, or Remittance Advice Remark Code that is not an ALERT.) Usage: Use this code only when a more specific Claim Adjustment Reason Code is not available.
Group code
CO
Category
Other Adjustments
Risk level
High
Appealable
Yes
See the full resolution workflow for CARC A1
Members of the EDI-Code Intelligence Lab get the step-by-step rework path, appeal language, root-cause drivers, and prevention checklist for every CARC and RARC pairing, plus payer-specific requirements.
Open in EDI Lab