October 21, 2026
The Cost of Claim Denials in Medical Billing: $19.7 Billion and Counting
A denied claim doesn’t just delay payment. It costs money to fix, and that cost compounds across every claim a practice submits. In 2023, providers spent an estimated $19.7 billion fighting claim denials, and more than half of it ($10.6 billion) went toward arguing claims that should have been paid correctly the first time.
Those are industry-scale numbers, but the economics repeat inside every independent practice. In this article, we break down what claim denials in medical billing actually cost, when appealing makes sense versus writing off, and the first report to pull if you want to see what denials are costing you.
What claim denials in medical billing really cost
Start with the per-claim math. Reworking a single denied claim costs between $25 and $181 depending on complexity, per MGMA benchmarking, compared with roughly $6.50 for a claim that goes out clean and stays clean. Every denial turns a $6.50 transaction into one that can cost 4 to 28 times more, before counting the delayed revenue itself.
Not every denial costs the same, either. Soft denials (claims rejected for fixable issues like missing information) can be corrected and resubmitted, while hard denials (such as claims filed past a payer’s deadline) are lost for good. That distinction shapes the economics of claim denials in medical billing: soft denials cost staff time to recover, and hard denials cost the full value of the claim.
At the organizational level, those per-claim costs stack up quickly. In an HFMA survey of health system leaders, more than 1 in 5 organizations reported losing $500,000 or more per year to denials, and denial rates have climbed 56% for Medicare Advantage claims and roughly 20% for commercial claims in recent years.
Here’s the frustrating part: the money spent on rework produces zero new revenue. It only recovers revenue the practice already earned. Every hour and dollar spent fighting a denial is cleanup, not growth.
Claims denials and appeals management: appeal or write off?
The appeals math creates a genuine dilemma for small practices. On one hand, appeals work: American Hospital Association data shows that 54% of initially denied claims are eventually overturned and paid. The revenue is recoverable more often than not.
On the other hand, recovery isn’t free. As many as two-thirds of denied claims are recoverable, yet practices routinely weigh the reimbursement amount against the cost to rework it, and for smaller claims, many decide the appeal isn’t worth the effort. A $45 claim that costs $60 in staff time to fight is a rational write-off, even though it’s earned revenue.
Staffing pressure tips the scale further. About 70% of providers dealing with staff shortages report rising denial rates, and the same stretched teams deciding which denials to appeal are the ones trying to keep new claims going out the door. When bandwidth runs short, appeals are usually what gets dropped.
Effective claims denials and appeals management comes down to a few process fundamentals: tracking each payer’s appeal deadline so recoverable claims don’t expire, using templated appeal letters for the most common denial types, and tagging every denial with a root cause so the same error stops repeating. Practices that treat appeals as a defined workflow, rather than a chore squeezed between other tasks, recover more revenue at a lower cost per claim.
This is the quiet trap: the write-off becomes the default not because the money isn’t recoverable, but because the process for recovering it costs too much. If that’s happening in your practice, the appeals process itself is the problem to fix, not the individual claims.
The costs that never show up on a report
Beyond rework expense and write-offs, denials carry costs that don’t appear as line items. Each denial extends your days in A/R, stretching the gap between delivering care and getting paid while payroll and overhead continue on schedule. Delayed submissions compound the problem, since every day a claim waits to go out extends the collection clock.
There’s also the opportunity cost of attention. Time your staff spends assembling appeal documentation and sitting on hold with payers is time not spent on eligibility checks and clean claim submission, which is exactly the work that prevents the next denial. The cycle feeds itself.
And denials strain more than the balance sheet. Patients on the receiving end of a denied claim often face confusing statements, unexpected balances, and billing phone calls nobody enjoys making or receiving. For an independent practice built on long-term patient relationships, a billing experience that feels chaotic can quietly undermine the trust the clinical side works so hard to earn.
How to lower the cost of denials
The cheapest denial is the one that never happens. Most denials trace to the most common claim denial reasons: eligibility, documentation, coding, and timing errors, all of which are preventable. That makes catching those issues before submission the highest-return investment, rather than litigating them after.
Prevention has a measurable target, too. Aim for a clean claim rate of 95% or higher, meaning at least 19 of every 20 claims are accepted on first submission. Every point of improvement replaces a batch of $25-to-$181 rework projects with $6.50 transactions, which is among the fastest ways to reduce the cost of claim denials in medical billing.
That starts with knowing your numbers. Track your denial rate, clean claim rate, and days in A/R so you can see whether your prevention is working. And choosing a billing setup that runs eligibility checks and claim scrubbing automatically, the way an integrated EHR and billing platform does, moves the work from expensive cleanup to inexpensive prevention.
What to check first
Pull your denied claims from the last 90 days and sort them into two piles: appealed and written off. If write-off is the default outcome, calculate what those written-off claims were worth. That number is usually the most persuasive line in any conversation about fixing the billing process.
To put a dollar figure on it, multiply your denied claim count by a conservative $25 rework cost, then add the total value of the claims you wrote off. That sum is your quarterly cost of denials, and for many practices, it’s the first time the problem has ever had a price tag.
Then look at the appeals you did pursue. If they’re succeeding at anything close to the industry’s 54% overturn rate, the revenue is there to recover, and the question becomes making recovery affordable.
See the full cost breakdown
Every dollar spent fighting a denial is a dollar not reinvested in your practice. Get the complete cost data, plus what a lower-friction billing process looks like, in The Independent Practice Billing Playbook.