Waystar unleashes agentic AI on claims, denials, and documentation.

      Waystar has introduced agents that analyze payer responses and automatically resubmit denied healthcare claims, marking what they claim to be the industry's first autonomous resubmission capability. In Germany, there is a limit on the number of hospital invoices that can be audited each quarter, and a flat fee is charged when one is reduced.

      An American company has developed software that independently negotiates with insurers. Waystar’s agents interpret a payer's rejection, adhere to that payer's rules, determine the next course of action, and resubmit the claim without assistance.

      The key selling point is the scale of operations. Waystar processes over 7.5 billion healthcare payment transactions annually and claims to impact approximately 60% of U.S. patients, which provides its agents with the historical data necessary to make informed decisions.

      The economics of this issue are unusual. Payers end up approving around 70% of the claims they initially deny, but this occurs only after providers incur costs to resubmit the claims, and this lag is what is being automated.

      All performance metrics belong to the vendor. The 75% reduction in analysis time comes from early adopters and “may vary by organization,” while the anticipated 25% cut in documentation review is expected but not measured, and the claim of being the "industry's first" is the company's own description of its launch, serving as a conditional promise in a limited context.

      The most insightful disclosure relates to risk. Waystar indicates variability in AI claims-matching accuracy across different payers, as well as the risk that payers may alter the appeals and recoupment processes for which the agents were designed to navigate.

      Europe also automates health administration, but not in this area. NHS England has provided Copilot to 505,000 staff this year within a system that produces almost no denied claims to pursue.

      Where Europe engages in this aspect, it is restricted by legislation. Germany caps the percentage of hospital invoices that can be sent for medical audit each quarter to 5%, 10%, or 15%, depending on how many of that hospital's previous bills passed the prior review.

      Additionally, there are financial penalties for losing an audit. Since December 2024, a hospital faces a €400 flat surcharge when an audit results in a reduction of one of its invoices, acting as a cap on disputes rather than an encouragement to continue them.

      The regulations surrounding AI do not address these issues. The AI Act categorizes risk assessment and pricing in health insurance as high risk but does not tackle the processes involved once a bill is issued.

      European health regulators are already aware of this gap. WHO Europe cautioned in July that nearly two-thirds of countries in the region utilize AI diagnostics, while only 8% have a health AI strategy.

      Thus, the distinction is not about the superiority of software. The U.S. is automating dispute processes on a large scale, while Europe has implemented regulations to streamline those disputes.