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CARC
CO-252
CARC
CO — Contractual Obligation
Documentation
Quick Facts
Code
CO-252
Type
CARC
Category
Documentation
Status
Active
An attachment/other documentation is required to adjudicate this claim/service
What Does This Code Mean?
The payer needs supporting documentation before it can process this claim at all.
Common Causes
- Claim type requires documentation by policy (e.g. certain DME, high-dollar procedures)
- Documentation wasn't included with the original submission
Recommended Next Steps
- Identify exactly what documentation the payer requires
- Submit it promptly through the payer's preferred channel and resubmit/reprocess the claim
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Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.