Healthcare Error Code
Healthcare Insurance / Medical Billing
Duplicate / Billing Errors
CO-22 | Care may be covered by another payer
Industry
Healthcare
Canonical
/healthcare/error-codes/co-22/
Last Updated
Feb 25, 2026
Summary
This code indicates that another payer may be responsible for covering the service.
Advertisement after-summary
Ad Space
What This Code Means
CO-22 is applied when payer systems suggest that another insurer may have primary responsibility. This relates to coordination of benefits. The code does not deny the service itself. It indicates that payer order needs clarification. Coverage may exist under another plan.
Where Users Usually See This Code
- Remittance advice
- EOB statements
- Coordination of benefits notices
Why This Code Appears
- Multiple insurance policies exist
- Primary payer information unclear
- Coordination of benefits required
What Typically Happens Next
- Claim is denied or adjusted
- Responsibility shifts pending clarification
- Claim may be redirected
What This Code Is Not
- It is not a non-covered service decision
- It is not a billing error
- It is not patient responsibility by default
Troubleshooting Checklist
- □ Verify primary coverage
- □ Review coordination of benefits
- □ Confirm payer order
Notes And Edge Cases
Coordination rules vary by payer. Timely updates affect claim routing.
Related Codes
8 links
- CO-109 CodeClaim not covered by this payer
- CO-23 CodeImpact of prior payer adjudication
- CO-62 CodeNot covered for place of service
- CO-133 CodeIncorrect provider type
- CO-200 CodeNon-covered service
- CO-61 CodeProcedure not covered for age
- CO-50 CodeNon-covered services
- CO-54 CodeMultiple physicians not allowed
Advertisement near-bottom
Ad Space