UnitedHealth nH Predict suit nears class certification

The current wave of social media posts framed this as breaking news, but the underlying reporting dates to November 2023, when STAT first exposed the algorithm, and the lawsuit itself was filed that same month in Minnesota federal court. What has actually changed is the litigation's momentum: Judge Tunheim's February 2025 ruling that federal preemption did not bar the contract claims created an opening, a March 2026 magistrate order pried loose internal documents on nH Predict's design, and through the summer the case moved toward class certification.

The case sits inside a broader pattern the article lays out. The same nH Predict tool was also used by Humana, which now faces a nearly identical class action, and Cigna is defending a separate suit over a system called PxDx. Meanwhile, Medicare Advantage insurers made nearly 50 million prior authorization determinations in 2023, and post-acute care — where the Lokken denial occurred — has become a particular area of concern.

What the outcome hinges on is whether the court certifies a class and how far Judge Tunheim's preemption reasoning travels. A certified class would turn a two-family dispute into one covering a potentially enormous group of Medicare Advantage members, and a win for the plaintiffs could hand a roadmap to lawyers suing other insurers over algorithmic denials. The damages math, the article notes, turns serious once bad-faith exposure is added across a class.