How payers underpay claims, and how to recover it
An underpayment is money on a claim that already paid, below what your contract or the payer's own rules say you were owed. Because it paid, nothing flags it, so it never gets worked. Here's how each kind happens, and what recovers it.
Paid Below Fee Schedule
A below-fee-schedule underpayment is when a payer pays a claim at less than the rate your contract says it should, and because the claim paid, nothing flags it. It's the purest form of silent lost revenue.
How to recover it →Multiple Procedure Payment Reduction (MPPR)
MPPR reduces the payment on the second and subsequent procedures done on the same day, often by 50%. It's a legitimate policy, but it's frequently applied when it shouldn't be, at the wrong percentage, or to the wrong line.
How to recover it →Modifier Payment Reductions (Bilateral, Assistant, Co-Surgeon)
Payers apply set percentage reductions to procedures billed with payment modifiers. When the modifier warranted a different multiplier, the reduction underpays the claim, and because the logic is formulaic, the error repeats on every similar claim.
How to recover it →Bundling That Reduced Payment
A bundling underpayment is when an NCCI edit folds one procedure into another and pays only the primary, even though both services were performed and a distinct-service modifier applied. The claim paid, so the missing money is easy to miss.
How to recover it →Sequestration Over-Applied
Sequestration is a 2% reduction that applies to Medicare and Medicare Advantage payments. It becomes an underpayment when a commercial payer takes the 2% with no basis, or when it's double-applied.
How to recover it →Silent PPO / Rental Network Repricing
A silent PPO underpayment is when a payer or third-party repricer applies a network discount to your claim through a leased or rental network you never signed a contract with, so you're paid a discounted rate you never agreed to.
How to recover it →Secondary / COB Shortfall
A coordination-of-benefits shortfall is when the secondary payer pays less than the remaining balance after the primary, leaving a gap it should have covered under the plan's coordination rules.
How to recover it →Outdated or Wrong Fee Schedule
This underpayment happens when the payer prices your claim against an old or wrong fee schedule, missing an annual update, a renegotiated rate, or the correct regional rate.
How to recover it →Out-of-Network Underpayment
This underpayment is when an in-network claim gets priced at a low out-of-network rate, or a true out-of-network claim is paid below the plan's usual and customary amount.
How to recover it →E/M Downcoding Underpayment
A downcoding underpayment is when the payer pays a lower-level E/M than you billed, quietly reducing a 99214 to a 99213 or trimming a level off a consult, so the claim shows as paid and the lost dollars never surface as a denial. Many large payers now run automated downcoding programs that do this at scale.
How to recover it →Drug / J-Code Underpayment
A drug or J-code underpayment is when a payer pays a physician-administered drug below its correct rate, an outdated ASP, the wrong markup, or fewer units than administered, so a buy-and-bill practice earns less than the drug cost, or loses margin, without any denial to show for it.
How to recover it →Missing Prompt-Pay Interest
A prompt-pay interest underpayment is when a payer pays a clean claim past the deadline its state's prompt-pay law sets, and owes statutory interest on the late payment, but never adds it. The claim looks fully paid; the interest the law requires is simply missing.
How to recover it →Recoupment & Offset Errors
A recoupment or offset underpayment is when a payer claws back money from a current payment to recover an alleged prior overpayment, and the take-back is wrong: the original overpayment wasn't real, the recoupment doubled up, or it exceeded what was actually owed. The net check shrinks and the reason is buried in the remit.
How to recover it →Site-of-Service Payment Differential
A site-of-service differential underpayment is when a service performed in your office is paid at the lower facility rate, or against the wrong place-of-service pricing, so you're shorted the non-facility payment that includes practice-expense overhead you actually incurred. The claim pays; it just pays at the wrong site's rate.
How to recover it →"Lesser of Billed Charges" Trap
The lesser-of-billed-charges trap is when your fee schedule bills a code below your contracted rate, and the payer's contract pays the lesser of billed charges or the contract amount, so it pays your lower charge and pockets the difference. You never get the full contracted rate because you asked for less than it.
How to recover it →TC/26 Professional-Technical Split Paid Wrong
A TC/26 underpayment is when a service that splits into a technical component (the equipment and staff) and a professional component (the physician's interpretation) is paid for only one part, or the split is valued wrong, so an in-office imaging or diagnostic service loses the component you performed and billed.
How to recover it →Global-Period Payment Errors
A global-period underpayment is when a service that's genuinely separate from a surgery, an unrelated visit, a staged or unrelated procedure, or care by a different physician, gets folded into the surgical global package and paid at zero or reduced, even though a modifier makes it separately payable. The surgery paid, so the swallowed service is easy to miss.
How to recover it →How much have you been underpaid?
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