CO-103: Provider Promotional Discount

What Does CO-103 Mean?

With CO (Contractual Obligation), the CARC 103 adjustment for provider promotional discount is a contractual reduction. The provider absorbs this amount per the payer contract or regulatory payment methodology. The patient is not responsible for the adjusted amount. Review the remittance to confirm the adjustment is consistent with your contract terms.

CARC 103 means the payer adjusted the payment based on provider promotional discount. The reimbursement was calculated using the payer's fee schedule, contracted rate, or regulatory payment methodology rather than the billed charge.

Common scenarios that trigger this adjustment include: the provider voluntarily reduced their charges as a promotional discount, and the payer applies CARC 103 to reflect this reduction on the remittance; The provider applied a charity care discount or sliding-scale fee reduction for the patient, and CARC 103 reflects the discounted amount; The provider agreed to a promotional or introductory rate with the payer for a specific period, and CARC 103 reflects the difference between standard charges and the promotional rate. The group code paired with CARC 103 determines who bears the financial responsibility — CO places it on the provider as a contractual obligation, OA indicates a coordination of benefits or other payer adjustment, PR shifts it to the patient.

Common Causes

How to Resolve

1. Review the adjustment against contract terms Compare the CO-103 adjustment with your payer contract to confirm the reduction is consistent with agreed terms or regulatory methodology.
2. Verify the adjustment amount Confirm the dollar amount of the adjustment is calculated correctly based on the contracted rate and the service provided.
3. Process the contractual adjustment If the adjustment is correct per contract terms, process it accordingly in your billing system. This amount cannot be transferred to the patient.

Common RARC Pairings

The RARC code tells you exactly what triggered the CO-103:

How to Prevent CO-103

• Document all promotional discount agreements in writing with clear terms, effective dates, and applicable services
• Track promotional discount periods and ensure discounts are removed from billing when they expire
• Review promotional discount arrangements for compliance with federal anti-kickback and Stark law requirements
• Maintain accurate records of charity care and sliding-scale fee reductions
• Ensure billing staff are aware of active promotional rates and apply them consistently

Also Filed As

The same CARC 103 may appear with different Group Codes:

Related Denial Codes