States File a Medicaid Gender Care Lawsuit Over the New Federal Rule

Twenty states, the District of Columbia and the governor of Pennsylvania went to federal court in Boston on September 2 to stop a rule that would end federal Medicaid and Children’s Health Insurance Program payments for gender-related medical care for minors. The rule takes effect October 13. The case is State of Illinois v. U.S. Department of Health and Human Services, No. 1:26-cv-14051, in the U.S. District Court for the District of Massachusetts. The defendants are HHS, Secretary Robert F. Kennedy Jr., the Centers for Medicare & Medicaid Services, and its administrator, Dr. Mehmet Oz.

Twenty-two plaintiffs is a large coalition, and the size of it is the first thing worth noticing. Much of the history of transgender life in this country has turned less on argument than on who was permitted to pay for what, and this Medicaid gender care lawsuit is that question in its plainest modern form.

What the rule does

CMS published the final rule — Medicaid Program; Prohibition on Federal Medicaid and Children’s Health Insurance Program Funding for Sex-Rejecting Procedures Furnished to Children — at 91 Fed. Reg. 52406, in the Federal Register of August 13. It bars federal Medicaid dollars for what the agency calls sex-rejecting procedures for people under 18, and federal CHIP dollars for the same care for people under 19. Patients already taking cross-sex hormones may keep federal coverage for those medications for up to six months; puberty blockers and surgery lose it on the effective date. The rule carves out care for medically verifiable disorders of sexual development, complications of earlier procedures, and conditions that endanger life or bodily function. I set out the rule’s terms in full when it came down in August.

What the states argue

The complaint brings four counts: three under the Administrative Procedure Act — that CMS exceeded its statutory authority, acted contrary to federal law, and acted arbitrarily and capriciously — and one under the Constitution’s Spending Clause. The states ask the court to declare the rule unlawful, vacate it, and bar its enforcement within their borders. CMS, the states write in their complaint, “acts without statutory authority or a reasoned basis to categorically exclude certain healthcare services from federal reimbursement.” The filing also frames the rule as one piece of a broader pattern, describing “relentless attacks on a small and vulnerable population.”

Massachusetts Attorney General Andrea Joy Campbell, a co-lead, put the state-authority point squarely: “Gender-affirming care remains legal and protected in Massachusetts, and we will not allow the federal government to dictate what care our patients receive.”

What the government says

CMS rests the rule on sections 1902(a)(19) and 1902(a)(30)(A) of the Social Security Act, which require that Medicaid services be provided consistent with the best interests of recipients and with quality of care. The agency writes that an HHS review found “serious concerns regarding the lack of reliable evidence of benefits” and “plausible risks of significant harms,” naming infertility, impaired bone density, cardiovascular and metabolic disease, surgical complications and regret. Announcing it, Managed Healthcare Executive reported, Kennedy said the administration was “ending federal taxpayer funding for sex-rejecting procedures on children,” and Oz said children “deserve our protection, not experimental interventions that pose serious risks and convey no proven benefits.”

Those are contested readings, not settled ones; major American medical associations read the same literature differently. But they are the government’s stated reasons, and a court asked whether an agency acted arbitrarily begins there.

What is actually at stake

It is worth being precise. The rule does not outlaw the care. States may still pay for it with their own dollars, and mental health services are untouched. What the rule withdraws is the federal match — the money most state programs actually run on. For a family on Medicaid, a benefit the state may lawfully offer but can no longer afford to fund is not far from a benefit that no longer exists. That gap between what is legal and what is reachable keeps recurring in this column, from the fight over essential health benefits under the ACA to New Jersey’s shield law.

As of September 8, no ruling had been reported, and the calendar is tight: five and a half weeks between the filing and the effective date. Whatever the court decides, the deadline arrives for families first and for the lawyers second. That is usually how it goes, and it is worth remembering when the next filing lands.