This injury/illness is the liability of the no-fault carrier.
Group code
CO, PI or PR
Category
Coordination of Benefits
Risk level
High
Appealable
Review Required
Common RARC pairings
RARCs (Remittance Advice Remark Codes) provide the specific reason detail alongside CARC 21 on the 835 electronic remittance. These are the RARCs seen most often with this CARC.
| RARC | Meaning |
|---|---|
| MA04 | Secondary payment cannot be considered without the identity of or payment information from the primary payer. The information was either not reported or was illegible. |
| N724 | Patient must use No-Fault set-aside (NFSA) funds to pay for the medical service or item. |
| N727 | A no-fault insurer has reported having ongoing responsibility for medical services (ORM) for this diagnosis. |
| N728 | A workers' compensation insurer has reported having ongoing responsibility for medical services (ORM) for this diagnosis. |
| N744 | Adjusted because the services may be related to an auto/other accident. |
See the full resolution workflow for CARC 21
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