Healthcare Error Code
Healthcare Insurance / Medical Billing
Claim Adjustment Reason Codes (CARC)
CO-125 | Submission/billing error
Industry
Healthcare
Canonical
/healthcare/error-codes/co-125/
Last Updated
Feb 25, 2026
Summary
This code indicates that an error occurred during claim submission or billing.
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What This Code Means
CO-125 is a general code used to identify billing or submission errors. It provides context but does not specify the exact issue. The code supports other adjustment or remark codes. It does not imply intent or systemic problems. Corrected submissions may be eligible for reprocessing.
Where Users Usually See This Code
- Remittance advice
- Claim adjustment notices
- Billing error reports
Why This Code Appears
- Data entry errors
- Submission format issues
- Payer billing rules not met
What Typically Happens Next
- Claim is denied or adjusted
- Reprocessing may be possible
- Payment is delayed or reduced
What This Code Is Not
- It is not a coverage exclusion
- It is not patient responsibility
- It is not a contractual adjustment
Troubleshooting Checklist
- □ Review billing accuracy
- □ Confirm submission guidelines
- □ Monitor error trends
Notes And Edge Cases
Generic submission errors often accompany more specific codes. Automated validation checks may trigger this code.
Related Codes
8 links
- CO-4 CodeService inconsistent with modifier
- N386 CodeBilling error
- CO-33 CodeInsufficient documentation
- CO-109 CodeClaim not covered by this payer
- CO-31 CodePatient cannot be identified
- CO-54 CodeMultiple physicians not allowed
- CO-128 CodeInvalid billing modifier
- CO-133 CodeIncorrect provider type
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