Payment Integrity

Payment integrity is the discipline health plans use to make sure claims are paid correctly, catching billing errors before payment and recovering overpayments after the fact, without disrupting legitimate provider reimbursement.

What Is Payment Integrity?

Payment integrity covers the full set of prepayment and post payment controls a health plan uses to ensure every claim is paid at the right amount, to the right party, for services that were rendered and medically necessary. Prepay review catches coding errors, duplicate billing, and policy violations before a claim is paid, while post pay audit identifies overpayments after the fact and initiates recovery. The discipline also includes coordination of benefits, which determines which payer is responsible when a member holds multiple plans, and fraud, waste, and abuse (FWA) analytics, which look for patterns across providers and claim types rather than errors on a single claim. Payment integrity sits alongside claims adjudication and utilization management as one of the core financial controls in a health plan's operations, and it has become a more prominent cost-containment lever as claim volumes and billing complexity both continue to rise. A mature program treats accuracy as a continuous process rather than a single checkpoint, layering controls at multiple points so that an error missed at one stage can still be caught at another.

Why It Matters

Improper payments are one of the largest sources of preventable cost in the healthcare system, and health plans without a mature payment integrity program absorb that leakage a claim at a time. The gap is not limited to obvious fraud. Duplicate billing, upcoding, and missed coordination of benefits opportunities all erode plan dollars in ways that are easy to miss without systematic review. As payer scrutiny of cost containment increases, payment integrity programs give plans a way to control spending without shifting costs to members or reducing legitimate provider reimbursement, which makes the function a direct contributor to a plan's medical loss ratio performance. Every dollar recovered or prevented from leaving the plan improperly is a dollar that stays available for member care, so the return on a well-run program compounds across the millions of claims a plan processes each year. Our look at how agentic AI is being applied across payer operations shows how plans are strengthening these controls with automation.

CMS estimated the Medicare fee-for-service improper payment rate at 6.55% for fiscal year 2025, or roughly $28.83 billion, per the Centers for Medicare & Medicaid Services, FY2025 data.

How Payment Integrity Works

• Prepay claims editing: Automated rules and clinical logic flag billing errors, unbundling, and policy violations before a claim is paid.
• Coordination of benefits: The plan confirms which payer is primary when a member holds multiple policies, preventing duplicate payment.
• Post pay audit: Paid claims are sampled and reviewed against medical records to identify overpayments for recovery.
• Fraud, waste, and abuse analytics: Pattern-based analysis across providers and claim types surfaces billing behavior that a single-claim review would miss.
• Recovery and provider communication: Confirmed overpayments move through a structured recovery process designed to minimize provider abrasion.

Key Metrics and Benchmarks

Health plans typically track payment integrity performance across a small set of metrics: prepay savings rate, which is the share of claim dollars prevented from incorrect payment before they go out, post pay recovery rate, which is the share of identified overpayments successfully recovered, and false positive rate on FWA referrals, which measures how much manual review time is spent on claims that turn out to be legitimate. Cycle time from claim submission to final payment integrity disposition is also closely watched, since slow reviews delay provider payment and increase abrasion. Leading programs shift an increasing share of savings toward prepay prevention rather than post pay recovery, since preventing an incorrect payment costs less than chasing one after the fact and avoids the pay-and-chase dynamic that frustrates providers. Benchmarks vary by plan size and claim mix, but programs relying solely on post pay audit typically leave a meaningful share of preventable overpayment in the system. Tracking these metrics together, rather than in isolation, gives plan leaders a clear view of where controls are working and where billing patterns are shifting, so investment can move to the points that return the most value.