Wellesley, MA — November 18, 2025 — The rate of payer audits accelerated in 2025, with hospital inpatient and outpatient average denial amounts that increased by 14% and 12%, respectively. Denial volumes were also up overall, led by a nearly fivefold increase in Request for Information (RFI) and medical necessity denials for Medicare Advantage plans. The total at-risk amounts, number of claims and average amount per claim increased by 30% in payer audits. Denials related to outpatient coding increased by 26%. These trends send a clear signal to providers that successfully navigating today’s complex financial and regulatory landscape requires prioritizing billing compliance, coding integrity, robust denial prevention strategies, and redefining revenue integrity to ensure sustainability.