How much does a denied claim actually cost? At minimum, about $25 in administrative labor just to rework it, based on Change Healthcare research reported via MGMA. That’s the floor, not the ceiling. Add clinical staff time, a formal appeal, and the real chance a claim never gets worked at all, and the cost of claim denials for many practices runs several times higher than that base figure.
A biller opens a remittance advice, sees a denial code on a $340 claim, and runs the math in her head: is chasing this one worth twenty minutes of digging through documentation and a call to the payer. Multiply that decision by every denial your practice sees this month, and you land on the question most denial reports never actually answer: not how many claims got denied, but what denying them cost.
This piece breaks the cost of a denied claim into its real, distinct layers, rework, clinical labor, and permanent loss, using verified data from MGMA, Premier Inc., and Kodiak Solutions instead of the same recycled figures most articles on this topic repeat.
Quick Answer
Reworking a single denied claim costs roughly $25 in administrative labor on average, per Change Healthcare research reported by MGMA. That figure covers billing staff time only. It doesn’t include clinical staff time, the cost of formally fighting a denial through appeal, or what happens to the claims that never get reworked at all.
Those are four different numbers, not one, and treating them as interchangeable is exactly what makes the cost of a denied claim so easy to underestimate. There’s the cost to rework a claim (correct it and resubmit). There’s the cost to fight a claim already in dispute (formal appeals, peer-to-peer reviews, multiple rounds with a payer). There’s delayed revenue (money you eventually collect, just slower). And there’s permanent revenue loss (money you never collect at all). The table below lays out how they differ.
| Cost Type | What It Actually Is | What the Data Shows | Recoverable? |
|---|---|---|---|
|
Rework cost |
Correcting and resubmitting a claim after a straightforward denial |
~$25 average, Change Healthcare data reported via MGMA (2020–21) |
Yes, if caught before the filing deadline |
|
Adjudication / appeal cost |
Formal dispute process once a claim is contested with the payer |
$43.84 (2022) to $57.23 (2023) per claim, Premier Inc. hospital survey |
Cost is spent whether or not the appeal wins |
|
Clinical labor add-on |
Physician and clinical staff time on documentation and peer-to-peer review |
+$13.29 (general inpatient) to +$51.20 (inpatient surgery), AMA estimate cited by Premier |
No, this time isn’t separately billable |
|
Delayed revenue |
Payment that arrives later than expected, still collected in full |
Reflected in days in accounts receivable |
Yes, fully, just slower |
|
Permanent revenue loss |
Claim written off and never collected |
Full value of the claim |
No |
Reworking a claim isn’t one task, it’s several. Someone has to open the remittance, figure out why it bounced, pull the chart or the coding notes, correct whatever was wrong, and resubmit. MGMA’s cited figure for this specific work, a straightforward correction and resubmission, averages about $25, based on Change Healthcare’s research from 2020 to 2021. That data is a few years old now, and it covers the simple end of the spectrum. More complex corrections, the kind involving documentation gaps or coding review, run higher.
Worth a quick distinction here in the medical billing claim cycle, since the two terms get used interchangeably and shouldn’t be. A rejection happens before a claim is ever adjudicated, kicked back by a clearinghouse or a payer’s front-end system for a formatting or data error, a wrong ID number, a mismatched field, before anyone actually reviews the claim. A denial happens after adjudication: the payer processed the claim and made an actual decision not to pay it. Rejections are usually cheap and fast to fix. Denials are what trigger everything else in this article, rework, appeals, and the risk of permanent loss.
Run the rework math at practice scale and it adds up fast. A practice submitting 800 claims a month at a 10% denial rate is reworking roughly 80 claims. At $25 each, that’s $2,000 a month in labor, and that’s before a single formal appeal gets filed. This is also the layer most billing reports actually show, since it’s the easiest to count. It is not the layer where most of the money disappears.
Once a denial moves past a simple correction into an actual dispute with the payer, appeal letters, peer-to-peer review, supporting documentation, the cost changes categories entirely. Premier Inc.’s 2025 survey of member hospitals found the average adjudication cost per denied claim climbed from $43.84 in 2022 to $57.23 in 2023, for claims submitted to private payers specifically. This is a different, later-stage cost than the $25 rework figure above, it’s what it costs to actually fight, not just correct, a claim.
That figure still doesn’t include clinical time. Premier’s earlier survey (covering the same 2022 data) cited an American Medical Association estimate that added clinical labor, physician time on documentation requests, peer-to-peer reviews, and medical necessity justification, adds another $13.29 to the cost of adjudicating a general inpatient claim and $51.20 for an inpatient surgical claim, on top of the administrative cost already spent chasing it. That’s a physician spending twenty minutes on a peer-to-peer call after clinic hours instead of going home, time that generates zero billable revenue while it’s spent.
A NOTE ON THIS DATA
An Advisory Board survey found the average success rate for provider appeals on private payer denials fell from 56% in 2018 to 45% in 2020, with Medicaid appeal success falling from 51% to 41% over the same window. That data is several years old, appeal dynamics shift by payer and by year, but the direction it points to, fighting a denial costs more staff time for a lower chance of getting paid than it used to, is worth planning around rather than assuming away.
A NOTE ON THIS FIGURE
Not every denial gets reworked or appealed. A figure in the 60 to 65% range for denials that never get resubmitted at all shows up constantly across industry commentary, including on HFMA’s own site, but it’s worth being straightforward about the sourcing: that range traces back to older secondary reporting rather than a current, methodologically transparent dataset. Treat it as a widely repeated industry estimate, not an audited number, the direction it points to (a meaningful share of denials get abandoned, not fought) is the part that holds up, the precise percentage is softer than the confidence with which it usually gets cited
This is also where delayed revenue and permanent revenue loss stop being the same thing, even though denial reports often blur them together. A claim that sits in accounts receivable for 60 days and then gets paid is delayed revenue, annoying, a cash flow drag, but eventually collected in full. A claim that misses a payer’s timely filing window, or that’s worth too little to justify the labor to fight, gets written off completely instead. That claim doesn’t cost $25, or $57, or even the clinical labor layered on top. It costs 100% of whatever it was worth, permanently. This is where revenue cycle recovery becomes its own discipline: practices sitting on aging denial backlogs often have real, recoverable money waiting in exactly this category, which is the specific problem a write-off recovery process is built to go back and reclaim.
You don’t need a complicated model to get a useful working number. Start with three inputs you already have: how many claims you submit a month, your denial rate, and a rework cost per claim (use $25 as a conservative floor, or your own billing team’s figure if you track it). Multiply the three together and you have a baseline monthly rework cost, before appeals or write-offs are added in.
Using the same practice from Layer One: 800 claims a month at a 10% denial rate is 80 denials, and at $25 each that’s a $2,000 monthly floor. Add the claims that escalate to formal appeal at the higher adjudication cost from Layer Two, and the ones written off entirely at their full value from Layer Three, and the real number climbs well past that baseline.
For a fuller picture that factors in denials, delayed payments, and write-offs together against your actual annual revenue, Scintillate RCM Healthcare’s revenue loss calculator runs that same math using your own numbers instead of an industry average.
Zoom out from a single practice and the numbers get large fast. Kodiak Solutions, which benchmarks revenue cycle data across more than 2,300 hospitals, reported that providers on its platform lost more than $48 billion in net revenue in 2025 to final denials and uncollected patient balances combined, up 25% from $38.6 billion in 2024. The median final denial rate rose from 2.5% in 2024 to 2.7% in 2025, and the rate at which providers successfully overturned initial denials on appeal fell to 42.1% over that same period, a small-looking shift that translates to billions in additional revenue leakage across the platform.
Premier Inc.’s survey puts a similar scale on the adjudication side specifically: providers spent more than $25.7 billion in 2023 fighting denied claims with payers, up from $19.7 billion in 2022, with close to $18 billion of that spent on claims that were ultimately paid anyway, cost that shouldn’t have been necessary in the first place. These are two different measurements of two different things, Kodiak’s number is revenue actually and permanently lost, Premier’s is the cost of the fight itself, win or lose, and both are moving in the same direction.
Here’s the distinction most denial reporting glosses over. Initial denial rate measures how often a claim bounces on first submission. Kodiak Solutions’ benchmarking put that figure at 11.8% in 2024, up from 11.5% in 2023, broadly consistent with the 11 to 12% range several industry benchmarks (the same figures covered in our breakdown of revenue cycle KPIs) have reported over the past two years. Final denial rate measures what’s still unpaid after appeals, corrections, and rework are exhausted, and in that same Kodiak dataset, for that same 2024 year, it held at 2.8%, a much smaller number.
A gap that size, roughly 9 percentage points between initial and final, isn’t free. It’s the entire cost structure covered above: the rework labor, the clinical time, the appeals, and the write-offs, all working to close it. A practice with a low final denial rate can still be spending enormous, poorly tracked sums getting there, and a practice that only watches its final rate on a dashboard has no visibility into whether that number is cheap or expensive to maintain. Tracking cost per denial alongside both rates, not instead of them, is what actually tells you whether your revenue cycle is efficient or just quietly expensive.
Denials in medical billing don’t have to be treated as a fixed cost of doing business, and effective denial management in medical billing starts long before a claim ever reaches a payer. Reducing the cost of a denied claim is mostly about reducing volume before it reduces effort, since a claim that’s never denied costs nothing to rework. Eligibility verification at check-in, accurate prior authorization tracking, and clean coding before submission are still the highest-leverage fixes, because they stop the labor cost before it starts rather than managing it after the fact.
For the denials that do land, not every one deserves the same amount of fight, and treating them that way is its own hidden cost. Rank an open backlog by dollar value first, then by how likely that specific denial reason is to be overturned. A $50 claim denied for a documentation gap you can fix in five minutes is worth fixing regardless. A $50 claim denied for a payer policy your practice has never once successfully appealed probably isn’t. A $4,000 claim sits at the other end of that same logic, worth pursuing even at fair odds, because the dollar value changes the math. Claim age matters too, a denial approaching a payer’s timely filing deadline is closer to becoming a permanent write-off than a delayed payment, and that risk should move it up the list regardless of dollar value alone.
This is exactly the gap our strategic approach to denial management services is built to close, prioritizing by dollar value and deadline risk and running root-cause analysis on why denials are happening in the first place, not just working them one at a time as they land.
Go back to the biller staring at that $340 claim from the top of this piece. She isn’t just weighing twenty minutes of her afternoon anymore, not once you’ve seen the full stack sitting underneath that one decision: the rework labor, the clinical time nobody bills for, the appeals that are getting harder to win, and the write-offs that turn a $340 problem into a $340 loss for good. Multiply her call by every denial your practice sees this month and that’s the real cost of a denied claim, the number sitting just outside your denial rate. Track cost per claim next to that rate instead of reporting it alone, and prioritize your backlog by dollar value and deadline risk instead of whatever landed on top, and the gap starts closing instead of quietly growing.
Scintillate Healthcare built its denial management process around exactly that gap, the one between what your dashboard shows and what your practice is actually losing. Every month you wait, more of that gap turns into permanent write-offs instead of recovered revenue. See the approach that closes it, then find out what you’re actually losing — there’s no cost to know the number, only a cost to keep not knowing.
Reworking a single denied claim costs an average of $25 in administrative labor, based on Change Healthcare research reported by MGMA covering 2020 to 2021. That figure covers straightforward corrections only. Once a claim moves into formal dispute with a payer, Premier Inc.’s survey of member hospitals found the average adjudication cost climbed from $43.84 per claim in 2022 to $57.23 in 2023.
A rejection happens before a claim is adjudicated, usually a formatting or data error caught by a clearinghouse, and is typically quick and inexpensive to fix. A denial happens after the payer reviews the claim and decides not to pay it, which is what triggers rework, appeals, and the risk of permanent revenue loss.
Denial rate only measures how often a claim is denied, not what it costs to resolve. Kodiak Solutions’ 2024 benchmarking found an 11.8% initial denial rate that fell to a 2.8% final denial rate after rework and appeals that same year, and closing that gap is where the rework labor, clinical time, and appeal costs actually accumulate.
Kodiak Solutions reported that hospitals on its benchmarking platform lost more than $48 billion in net revenue in 2025 to final denials and uncollected patient balances, a 25% increase from 2024. Separately, Premier Inc. found providers spent $25.7 billion in 2023 just adjudicating denied claims with payers, up from $19.7 billion the year before.
Multiply your monthly claim volume by your denial rate to get the number of denials you’re reworking, then multiply that by an average rework cost, roughly $25 as a conservative floor. That gives a baseline labor cost before appeals or write-offs are added. Scintillate RCM Healthcare’s revenue loss calculator runs the fuller version of this math using your actual revenue, denial rate, AR days, and write-off rate.
Revenue cycle management (RCM) is the end-to-end financial process a practice uses to track patient revenue, from scheduling and eligibility verification through claim submission, denial management, and final payment. Every layer of cost covered above, rework, appeals, and write-offs, sits inside this cycle, which is why a practice’s RCM maturity is one of the biggest drivers of how much of a denial’s cost actually gets recovered.
The most common denial reasons include eligibility and coverage issues, missing or invalid prior authorization, coding errors, timely filing misses, and incomplete documentation. Identifying which of these drive your practice’s denials is the first step in denial management, since fixing the top few causes reduces volume before any rework cost is ever spent.
Free RCM Health Check. Receive a custom benchmark report comparing your performance against industry standards in 2 days.
Scintillate Healthcare LLC, Georgetown, Texas.
Cash Accelerated Care Elevated
