The Aetna downcoding lawsuit is a federal case filed on April 6, 2026, in which Jefferson Health and the Lehigh Valley Physician Hospital Organization accuse Aetna of unlawfully cutting hospital reimbursement for Medicare Advantage patients through an automated payment policy. The complaint, Thomas Jefferson University dba v. Aetna Health Inc., Case No. 5:26-cv-02215, is pending in the U.S. District Court for the Eastern District of Pennsylvania.1MedCity News. Jefferson Health Aetna Lawsuit
Who Sued and What They Want
The plaintiffs are Thomas Jefferson University (doing business as Jefferson Health) and Lehigh Valley Physician Hospital Organization. They are asking the court for an injunction blocking Aetna from enforcing the challenged policy, plus a declaratory judgment, damages, and attorneys’ fees.2Becker’s Payer Issues. Jefferson Health Sues Aetna Over Medicare Advantage Inpatient Reimbursement Policy
The lawsuit is the most prominent legal action so far in a wider dispute between hospitals, physician groups, and major insurers over automated reductions in what providers get paid.
What the Challenged Policy Does
Aetna announced its “level of severity inpatient payment policy” on August 1, 2025. After delays, it took effect January 1, 2026.3American Hospital Association. Aetna Delays, Issues Additional Details Level of Severity Inpatient Payment Policy It applies to Aetna’s Medicare Advantage and dual-eligible business and covers urgent or emergent inpatient stays lasting at least one midnight but fewer than five.2Becker’s Payer Issues. Jefferson Health Sues Aetna Over Medicare Advantage Inpatient Reimbursement Policy
Under the policy, Aetna approves these stays without a traditional medical necessity review. But if the claim does not meet Aetna’s internal severity criteria, drawn from MCG Health clinical guidelines, the hospital is paid at a rate comparable to what it would receive for an observation stay rather than the full negotiated inpatient rate.4Healthcare Association of New York State. HANYS Letter to CMS on Aetna Inpatient Policy Stays of five midnights or longer are exempt and paid at the standard inpatient diagnosis-related group rate.3American Hospital Association. Aetna Delays, Issues Additional Details Level of Severity Inpatient Payment Policy
Aetna calls the reduced payment a “contractual adjustment” rather than a coverage denial. The plaintiffs and other hospital groups argue that label strips providers and patients of appeal rights that would attach to a formal denial.
The Legal Arguments
Jefferson Health’s core claim is that the policy is downcoding, paying hospitals at a lower level of care than what was delivered, in violation of federal law and the hospitals’ contracts. Two theories anchor the complaint.
Violation of the Two-Midnight Rule
Under a CMS final rule effective January 1, 2024, Medicare Advantage plans must follow the same inpatient admission criteria as traditional Medicare. That includes the two-midnight benchmark: an inpatient admission is appropriate when a physician expects the patient to need hospital care spanning two midnights.5American Hospital Association. FAQs Related to Coverage Criteria and Utilization Management Requirements in CMS Final Rule CMS has said MA plans may not use third-party tools like MCG to override established Medicare coverage and payment standards.4Healthcare Association of New York State. HANYS Letter to CMS on Aetna Inpatient Policy Jefferson Health argues Aetna is doing precisely that.
Breach of Contract
The hospitals’ negotiated agreements with Aetna set a single inpatient reimbursement rate. By creating a lower payment tier through a unilateral policy change, the plaintiffs say, Aetna effectively rewrote the contracts without consent.6Healthcare Dive. Jefferson Health Sues Aetna Over Medicare Advantage Downcoding Policy
Aetna’s Response and the Arbitration Fight
In a statement on April 7, 2026, an Aetna spokesperson said the company’s policies “comply with all applicable federal law and regulations and with the terms of our provider contracts,” and that Aetna “disagrees with the allegations in the lawsuit and will respond in the appropriate forum.”2Becker’s Payer Issues. Jefferson Health Sues Aetna Over Medicare Advantage Inpatient Reimbursement Policy Aetna has described the policy as a way to “more quickly approve payment for inpatient hospital stays.”6Healthcare Dive. Jefferson Health Sues Aetna Over Medicare Advantage Downcoding Policy
Rather than answer the complaint on the merits, Aetna filed a motion to compel arbitration and stay the court proceedings. On June 5, 2026, the American Hospital Association and the Hospital and Healthsystem Association of Pennsylvania filed a joint amicus brief opposing that motion. They argued that a policy with nationwide implications for hospitals and Medicare beneficiaries should be resolved in public litigation, not confidential arbitration.7American Hospital Association. AHA Amicus Brief in Pennsylvania Case Seeking Relief From Aetna’s Level of Severity Policy
As of mid-2026, the arbitration question is unresolved and no ruling has issued on the merits.
Regulator and Hospital Pressure Outside the Courtroom
The lawsuit lands on top of months of organized opposition. On September 15, 2025, AHA President Richard Pollack sent a letter to Aetna President Steve Nelson calling the policy “an evasion of the two-midnight standard” and urging Aetna to rescind it. The AHA argued that labeling reduced payments as approved claims rather than denials stripped hospitals and patients of standard appeal rights, and that the design could artificially improve Aetna’s Medicare Advantage Star Ratings by suppressing denial and appeal volumes.8American Hospital Association. AHA Urges Aetna to Rescind Level of Severity Inpatient Payment Policy
Nine days later, Federation of American Hospitals President Chip Kahn wrote to CMS Administrator Dr. Mehmet Oz, arguing the policy was designed to “inflate its approval numbers and obfuscate its ultimate inpatient coverage denials.” The FAH said Aetna was effectively issuing adverse organization determinations without following the required procedures.9Federation of American Hospitals. FAH Letter to CMS on Aetna Coverage Policy The Healthcare Association of New York State wrote to CMS on August 20, 2025, arguing the policy violated 42 CFR 422.101 and asking the agency to instruct Aetna to withdraw it.4Healthcare Association of New York State. HANYS Letter to CMS on Aetna Inpatient Policy CMS has not publicly responded to any of these letters.
A Separate Aetna Downcoding Program for Physicians
The Jefferson Health case targets inpatient hospital payments, not physician office visits. Aetna runs a different downcoding operation, its “Claim and Code Review Program,” which performs prepayment edits on level 4 and level 5 Evaluation and Management claims from individual providers on commercial plans. That program expanded from a 12-state pilot to nearly all Aetna commercial states except Louisiana by late March 2025, with a planned extension to Medicare Advantage.10The Rheumatologist. Aetna Expands Evaluation Management Downcoding Program
Providers flagged as high users of higher-level codes are placed in the program for a year and can exit early by successfully appealing 75% of downcoded claims. Aetna does not send separate notifications when claims are downcoded; providers are expected to catch reductions in remittance documents.11Indiana State Medical Association. Aetna E/M Downcoding The American Medical Association has said it is “never appropriate” to downcode claims automatically without reviewing the medical record.12American Medical Association. Payer E/M Downcoding Resource That physician-side program is not part of the Jefferson Health complaint.
Why This Fight Looks Familiar
Aetna has been here before. In 2003, the insurer agreed to a $470 million settlement to resolve a class action brought by roughly 600,000 physicians under the federal Racketeer Influenced and Corrupt Organizations Act. The doctors alleged Aetna had systematically cheated them by delaying payments and using automated downcoding to reduce what they were owed. U.S. District Judge Federico Moreno specifically cited the practice of automated downcoding of medical services as part of the case.13Los Angeles Times. Aetna Settles Class-Action Lawsuit
As part of that settlement, Aetna updated its billing and coding policy to state that it “does not automatically reduce the code level of evaluation and management codes billed for Covered Services,” and committed to transparent claims-editing processes and a Billing Dispute External Review Board.14Medical Society of the State of New York. Aetna Class Action Settlement Compliance Report More than two decades later, the same allegations are back in court.