CARC107ReferenceCurrentVerified Aug 15, 2026CARC 107
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 related or qualifying claim/service was not identified on this claim.
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
- Related claim number not referenced
- Qualifying service not linked
- Wrong claim reference submitted
AR Guide knowledge
What AR should verify
- Identify the related claim that should have been referenced
- Confirm the reference was submitted correctly
AR Guide knowledge
Recommended action
- Resubmit with the correct related claim reference
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.