CARC B8 Denial Code: Alternative Services Issue
Code B8 means the claim was denied because the payer determined that alternative services were available and should have been used instead of the billed service. This decision is often based on the payer's policy about cost-effective treatment options.
Who Pays: Group Code Liability
For code B8, the group code is typically CO, meaning the provider must write off the amount, and it cannot be billed to the patient. However, if the payer's policy specifies patient liability, it may fall under PR, making it billable to the patient.
Why Claims Get Code B8
- Provider billed for a service without checking if a less expensive alternative was required by the payer.
- The service provided was not pre-authorized when an alternative service was available.
- Incorrect billing of a non-preferred service when a preferred service exists under the patient's plan.
- Failure to document the medical necessity for the more expensive service.
- Payer's policy changes regarding covered services were not updated in the provider's billing system.
How to Fix & Resubmit
- Review the payer's policy to confirm if an alternative service should have been used.
- Check if the service provided had a valid pre-authorization or if an alternative had a required pre-authorization.
- Contact the payer to discuss the denial reason and clarify any alternative service requirements.
- If a valid reason exists for using the billed service, gather supporting documentation and prepare an appeal.
- Submit the appeal with all necessary documentation if justified, or write off the amount if the denial stands.
Corrected Claim or Appeal?
Submit a corrected claim if an alternative service was indeed used but billed incorrectly. If the service was necessary and justified, prepare a formal appeal with supporting documentation. If the denial is valid per contract, no appeal is warranted.
Preventing Future B8 Denials
- Verify payer policies regularly to stay updated on alternative service requirements.
- Ensure pre-authorizations are obtained for services that may have alternative options.
- Educate billing staff on payer-specific policies regarding alternative services.
- Implement a checklist for verifying the necessity and authorization of services before billing.