CARC291ReferenceCurrentVerified Aug 15, 2026CARC 291
AR Guide Workflow
Coordination of Benefits
Another plan may be primary, the primary's payment was not applied correctly, or the claim belongs with a different payer under COB rules.
AR Guide explanation
What it means
The claim was received by the medical plan but benefits are not available under it. The claim has been forwarded to the patient's dental plan.
AR Guide knowledge
Common denial category
Coordination of Benefits — Another plan may be primary, the primary's payment was not applied correctly, or the claim belongs with a different payer under COB rules.
AR Guide knowledge
Common causes
- Service billed to the wrong plan type
AR Guide knowledge
What AR should verify
- Confirm the service belongs under the dental benefit
AR Guide knowledge
Recommended action
- Monitor the forwarded claim with the dental plan
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.