CO-P4
What This Code Means
Workers’ Compensation claim adjudicated as non-compensable. This Payer not liable for claim or service/treatment. To be used for Workers’ Compensation 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.