CO-22 Denial Code Explained

CO-22 is a medical billing denial code that indicates the claim may be covered by another insurance payer due to coordination of benefits (COB). This denial commonly occurs when the primary and secondary insurance information is incomplete or incorrect.

What Does CO-22 Mean?

The CO-22 denial code means the insurance payer believes another payer may have primary responsibility for the claim before payment can be processed.

This denial is often related to coordination of benefits issues, outdated insurance information, or incorrect payer order.

Common Reasons for CO-22

• Incorrect primary insurance information

• Missing secondary insurance details

• Coordination of benefits conflicts

• Outdated patient coverage information

• Incorrect payer billing order

• Duplicate insurance coverage issues

How To Fix CO-22

Verify the patient’s active insurance coverage and confirm the correct primary and secondary payer order. Update any incorrect insurance information and resubmit the claim to the appropriate payer.

If necessary, request updated coordination of benefits information directly from the patient or insurance provider.

Quick Summary

CO-22 indicates another insurance payer may have primary responsibility for the claim. Most CO-22 denials can be resolved by correcting coordination of benefits information and resubmitting the claim properly.