CO-29 Denial Code Explained: Meaning, Causes & How to Fix It
Discover everything you need to know about the CO-29 denial code — why claims get denied for “timely filing expired,” what common causes trigger it, and proven strategies to prevent or appeal it. This guide breaks down payer deadlines, documentation errors, insurance coordination issues, and system pitfalls that lead to CO-29 denials. Learn how to gather proof of timely submission, streamline billing workflows, set up alerts, audit denial trends, and reclaim denied revenue wherever possible. Whether you’re a medical biller, practice manager, or healthcare provider, implementing these best practices can help minimize permanent write-offs and optimize your claims process.