Health plans rarely lose money to one dramatic failure. They lose it a few dollars at a time, spread across thousands of claims, in ways that are easy to miss until the numbers are added together. Payment integrity is the discipline built to catch that leakage, both before a claim is paid and after. For health plans, self-funded employers and payers focused on reducing claims leakage, a strong program is what separates a claims operation that simply processes volume from one that actively protects plan dollars.
This article breaks down what payment integrity in healthcare covers, how prepayment review and post-payment audits work together and what a healthcare claims audit program should include if it is going to catch more than the obvious errors.
What payment integrity means for a self-funded plan
Payment integrity is the set of processes and controls a health plan uses to confirm that every claim is paid at the right amount, to the right party, for a service that was medically necessary and correctly coded. It sits on top of standard claims adjudication rather than replacing it. Adjudication decides whether a claim is payable under the plan’s rules. Payment integrity asks a second question: even if this claim is payable, is the amount, the coding and the documentation correct.
That distinction matters because accurate adjudication and this discipline get talked about as if they were the same thing. They are not. A claim can clear every adjudication rule and still be wrong, a duplicate submission, an upcoded procedure, a service billed at a rate that does not match the contract. It is the layer built specifically to catch those cases, both before the payment goes out and after.
A complete program spans the full claims lifecycle: prepayment review that stops errors before money moves, post-payment audits that recover what should not have been paid, and fraud, waste and abuse controls that flag patterns a single claim review would miss. For self-funded employers working with a third-party administrator, this lifecycle view is what separates a plan that is administered from one that is actively protected.
Prepayment review: Stopping errors before they’re paid
Prepayment review is the first and most cost effective line of defense, because a dollar that is never paid out incorrectly does not have to be chased down later. A mature prepayment program typically runs claims through several passes rather than a single check, catching different categories of error at each stage.
Common prepayment controls include:
- Claims editing: automated rules that catch coding conflicts, unbundling, duplicate billing and frequency limits before a claim reaches payment.
- Medical necessity review: confirming that a billed service matches the diagnosis and the plan’s coverage criteria, often coordinated with medical management oversight.
- Coordination of benefits (COB): confirming which payer is primary when a member has coverage under more than one plan, a step that is frequently missed and expensive when it is.
- Preauthorization and data validation: cross-referencing claims against prior authorizations, eligibility files and provider contract terms before payment is released.
None of these steps work in isolation. A claims editing rule will not catch a COB conflict, and a COB check will not catch an unbundled procedure code. The strength of a prepayment program comes from running these passes together, so a claim has to clear several distinct checks rather than one broad filter.
Post-payment audits and overpayment recovery
Prepayment review will not catch everything, and no plan should expect it to. Some errors only become visible once claims data is aggregated and patterns emerge across providers, claim types, or time periods. That is the role of a healthcare claims audit conducted after payment: reviewing paid claims retrospectively to identify overpayments, incorrect coding and coordination of benefits errors that slipped through initial review.
Recovering an overpayment is not just an accounting exercise. It has to be handled in a way that limits provider abrasion, because a health plan that recovers funds through blunt, poorly documented demands tends to see slower cooperation and more disputes on the next round. The healthcare claims audits that work best pair clear, specific documentation of the error with a defined recovery process, so providers understand exactly what is being corrected and why.
The strongest post-payment programs also feed their findings back into prepayment logic. When an audit uncovers a recurring error pattern, that pattern should become a new prepayment edit rather than a one-time recovery. Over time, this closes the gap between what prepayment review catches and what only shows up after the fact.
The scale of this problem is significant even in heavily audited programs. The Centers for Medicare and Medicaid Services estimated the Medicare fee-for-service improper payment rate at 6.55 percent for fiscal year 2025, or roughly $28.83 billion. Self-funded plans without a dedicated program face a similar exposure, without the scale of oversight a federal program has behind it. That is one reason payment integrity is increasingly treated as a core requirement of insurance claims outsourcing decisions rather than an optional add-on service.
Fraud, waste and abuse controls
Not every payment error is a mistake. Fraud, waste and abuse (FWA) programs exist to catch the smaller set of claims that reflect intentional misrepresentation, medically unnecessary utilization, or billing patterns that do not hold up under scrutiny. FWA analytics work differently than standard claims editing: instead of checking a single claim against a rule, they look for patterns across providers, claim types, and time flagging outliers that a one-off review would miss.
When a pattern crosses a defined threshold, it typically routes to a Special Investigations Unit (SIU) for closer review, gathering documentation, comparing billing history and building a case before any action is taken against a provider. This escalation path matters because it keeps routine claim disputes separate from genuine fraud investigations, so providers are not treated as suspects over an honest coding error.
Federal enforcement gives some sense of how much is at stake nationally. The HHS Office of Inspector General reported $5.56 billion in expected recoveries and savings for a single six-month reporting period covering October 2025 through March 2026. Health plans do not have the same investigative authority as a federal watchdog, but the underlying discipline, pattern detection, documentation and a defined escalation path, is the same one a well-run FWA program applies at the plan level.
Frequently asked questions
How is payment integrity different from a healthcare claims audit?
A healthcare claims audit is one tool within a payment integrity program, typically the post-payment review step. Payment integrity is the broader discipline that includes claims audits, but also covers prepayment review, coordination of benefits and fraud, waste and abuse detection across the full claims lifecycle.
Does a strong program slow down claims payment for providers and members?
Not when it is built correctly. Most prepayment checks run automatically within the standard adjudication cycle, and only a small percentage of claims are flagged for manual review. The goal is to catch the errors that matter without adding friction to the claims that are already correct.
How does payment integrity intersect with reference-based pricing or custom network arrangements?
Payment integrity confirms that a claim is billed and coded correctly. Reference-based pricing and network contract terms determine what the correct payment amount should be. A plan using reference-based pricing still needs that review to confirm each claim matches the agreed pricing methodology before it is paid.
What happens if an overpayment is identified after the plan year has already closed?
Overpayments identified after a plan year closes can typically still be recovered, though the process usually takes longer and may require additional documentation. This is one reason ongoing, real-time claims review works better than a single annual audit: the sooner an error is caught, the simpler the recovery.
How BHPS builds payment integrity into claims operations
For a self-funded employer, health system, or payer, this kind of program is only as strong as the team and technology behind it. BHPS treats it as part of claims administration itself rather than a service layered on afterward. Advanced claim review runs alongside standard adjudication, so errors, overcharges and duplicates are caught as claims move through the system rather than discovered months later in a separate audit cycle.
That review is supported by an in-house clinical team and chief medical director, so medical necessity questions are answered by clinicians who understand the plan rather than routed to an outside vendor with no context on plan design. Combined with real-time reporting through the Create® Technology Platform, plan sponsors get visibility into where claims are being caught, corrected, or flagged, not just a summary after the fact.
Whether you are building a payment integrity program from scratch or evaluating your current TPA’s approach to claims accuracy, the right partner should be able to show you exactly how prepayment review, post-payment audits and FWA controls work together, not describe them as three separate services bolted onto your plan.
If you want a clearer picture of how prepayment review, claims auditing and overpayment recovery would work under your plan, schedule a conversation with the BHPS team.