- An estimated 35-65% of denials are never reworked, so most denied revenue in many practices is simply abandoned.
- Reworking one denial costs $25-$117, which is why so many go untouched.
- U.S. providers spend an estimated $25.7-$43 billion a year fighting denials, and roughly $18 billion of that goes to claims that should have been paid correctly the first time.
- Appeals succeed 40-60% of the time when claims are actually worked.
- For a practice with 10,000 claims a year and a 10-12.6% denial rate, unworked denials can mean well over $1 million in annual exposure.
The barrier isn’t strategy. It’s follow-through.
Here’s what unworked denials really cost, and why the money is easier to recover than most teams assume.
A denied claim that gets appealed and eventually paid is simply a cost of doing business. A denied claim that never gets touched again is something else entirely — a permanent, silent loss that never shows up as a line item anywhere. Industry data suggests 35–65% of denials are never reworked at all, meaning the majority of denied revenue in many practices is simply abandoned.
Reworking a single denial costs $25–$117 in staff time, systems, and overhead, which is exactly why so many go untouched — the perceived cost of fighting often looks close to the amount at stake. Multiply that friction across the entire system and the numbers become staggering: U.S. providers spend an estimated $25.7–$43 billion a year fighting denials, and roughly $18 billion of that is spent arguing over claims that should have been paid correctly the first time. For a mid-sized practice processing 10,000 claims annually at a 10–12.6% denial rate, unworked denials alone can represent well over $1 million in annual exposure.
What makes this particularly frustrating is that the math isn’t complicated — appeal success rates run 40–60% when claims are actually worked. The barrier isn’t strategy, it’s follow-through, staffing bandwidth, and prioritization.
Final takeaway
So the question worth raising in your next ops meeting isn’t “how many denials did we get this month?” It’s “how many of those did we actually finish fighting for — and how many did we quietly let go?”
Sources
- Enter.health. What Does a Denied Claim Really Cost? The Math Behind…
- QuickIntell. State of Healthcare Claim Denials 2026. 2026.
- Premier Inc. Claims Adjudication Costs Providers $25.7 Billion – $18 Billion is Potentially Unnecessary Expense.
- MediCodio AI. Healthcare Claims Denial Rates by Specialty:…
- MedPrecision Billing. Denial Rate Benchmark 2026: Is 5-10% Normal? 2026.
- Pana Health Care Solutions. Top Denial Management Metrics to Track for Faster Reimbursement. 2025.
- BillingBench. RCM Benchmarks: Denial Rates, Days in AR. 2025.
Frequently Asked Questions
What is an unworked denial in anesthesia billing?
An unworked denial is a rejected claim that sits without correction, resubmission, or appeal. Because it was never actively pursued, the practice loses revenue it had already earned and was entitled to collect.
Why do so many anesthesia claim denials go unworked?
High denial volume paired with limited staff time often means only the largest or simplest claims get attention, leaving the rest unresolved. Without a structured process to assign, track, and age denials, many never get worked at all.
Why do unworked denials cost more than the obvious loss?
Each unworked denial represents revenue the practice already earned through care it delivered, not a hypothetical gain. Left unresolved, those claims age, become harder to collect, and often end in an avoidable write-off.
What’s the difference between a denial and a write-off?
A denial is a payer’s initial refusal to pay a claim as submitted. A write-off is the practice’s decision to stop pursuing it, and many denials become write-offs simply because no one worked them, not because they were unrecoverable.
How should anesthesia groups manage denials to protect revenue?
Effective denial management assigns every denial an owner, tracks it by reason and payer, and sets a clear timeline for correction or appeal. Treating denial follow-up as routine workflow, not an exception, is what protects revenue already earned.