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CARC
CO-303
CARC
CO — Contractual Obligation
Non-Covered
Quick Facts
Code
CO-303
Type
CARC
Category
Non-Covered
Status
Active
What Does This Code Mean?
Prior payer’s (or payers’) patient responsibility (deductible, coinsurance, co-payment) not covered for Qualified Medicare and Medicaid Beneficiaries.
Common Causes
- Service falls under a specific plan exclusion
- Benefit maximum or occurrence limit already reached
- Wrong plan or benefit category billed
Recommended Next Steps
- Confirm the specific exclusion or limit that applies with the payer
- Check for secondary coverage that may pick up the balance
- Bill the patient per financial policy if the exclusion is confirmed accurate
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Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.