Denial management in healthcare: sort denials by cause before you work them
Denial management in healthcare is the practice of finding out why payers refuse claims, recovering the ones worth appealing, and removing the causes that generate the rest. The evidence points at the front end. Of in-network denial reasons reported by HealthCare.gov insurers for 2024, 25% were administrative and only 5% were based on medical necessity (KFF).
Appeals barely happen. Consumers appealed fewer than 1% of the roughly 85 million in-network claims denied that year, and insurers upheld 66% of the appeals they received (KFF).
The fundamental approach in managing denials
The fundamental approach in managing denials is to classify each denial by cause, route it to the function that owns that cause, and change that function’s workflow so the same denial stops arriving. Rework alone treats symptoms. A practice that reworks 400 eligibility denials a quarter without touching check-in will rework 400 more next quarter.
Denial management in medical billing also has to price the work. Some categories are cheap to correct and refile. Others need clinical documentation, a physician’s time, and a deadline calendar.
Where each denial category actually gets fixed.
Why clinical denials need their own workflow
Clinical denials are denials based on medical necessity, level of care, or coverage criteria rather than on a data error. Across HealthCare.gov plans, medical necessity accounted for 5% of reported in-network denial reasons in 2024, but individual plans ran far higher. At one Molina Healthcare plan in Mississippi, medical necessity drove 38% of denial reasons (KFF).
A corrected claim will not fix one of these. Clinical denials need the note, the order, the record of failed conservative therapy, sometimes a peer-to-peer, and always the appeal window tracked. Practices that drop them into the same queue as duplicate-claim rejections lose them to timely filing.
Trends in revenue cycle management for 2026 and 2027
Payer transparency is the trend in revenue cycle management most likely to change daily work. CMS-0057-F requires impacted payers to implement certain provisions by January 1, 2026, with the application programming interface requirements due primarily by January 1, 2027 (CMS). Qualified health plan issuers also have to post prior authorization metrics publicly (KFF).
Denials become payer-specific problems once that data is out. Rank your payers by authorization denial rate, then staff against the worst two instead of spreading effort evenly.
Denial management in medical billing is the workflow that classifies denied claims by cause, corrects and resubmits recoverable claims, appeals denials with clinical merit, and reports patterns back to registration, coding, and authorization staff so the same denials stop recurring.
A rejection never enters adjudication. The clearinghouse or the payer returns it for a format or data error, and staff can correct and resubmit it without an appeal. A denial has been adjudicated and refused, so it requires either a corrected claim or a formal appeal filed inside the payer’s window.
Among HealthCare.gov plans in 2024, consumers appealed fewer than 1% of denied in-network claims, and insurers upheld 66% of the internal appeals they received (KFF). Roughly a third were reversed. Provider-side appeal outcomes are not reported federally, so measure your own overturn rate by payer. MBS, a revenue cycle management company serving practices across 30+ specialties, builds denial workflows around cause codes rather than aging buckets. Send 90 days of remits and MBS will show you which denial categories are recoverable and which ones belong to the front desk.
.jpg)
.jpg)
