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CARC
CO-29
CARC
CO — Contractual Obligation
Duplicate/Timely Filing
Quick Facts
Code
CO-29
Type
CARC
Category
Duplicate/Timely Filing
Status
Active
The time limit for filing has expired
What Does This Code Mean?
The claim was submitted after the payer’s timely filing deadline.
Common Causes
- Claim held internally too long before submission
- Initial claim rejected at clearinghouse and resubmission delayed
- Wrong payer billed first, delaying the correct submission
- Appeal filed outside the appeal window
Recommended Next Steps
- Check the payer's specific timely filing limit (varies by payer/contract)
- Gather proof of timely submission (clearinghouse acceptance reports, date-stamped logs)
- File a timely filing appeal with that proof attached
- Track clearinghouse rejections daily so denials like this don't recur
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Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.