CO-P18
What This Code Means
Procedure is not listed in the jurisdiction fee schedule. An allowance has been made for a comparable service. To be used for Property and Casualty only.
Common Causes
- Payer-specific processing rule or historical/administrative code
- May require payer contact for full context
How to Resolve or Appeal
- Review the payer's specific policy referenced by this code
- Contact the payer's provider services line if the reason isn't clear from the remittance
More Denial Codes to Check
Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.