This bill, titled the Children's Hospital GME Support Reauthorization Act of 2025, reauthorizes federal payments to children's hospitals for their graduate medical education programs through fiscal year 2030, setting specific funding levels for these years. A key new provision introduces a prohibition on these payments, starting in fiscal year 2026, for any children's hospital that provided specified procedures and drugs to individuals under 18 years of age during the preceding fiscal year. The legislation defines "specified procedures and drugs" to include various surgeries and hormone therapies intended to change an individual's body to no longer correspond to their sex, encompassing various gender-affirming medical interventions. However, it includes crucial exceptions for medically necessary treatments, such as those for precocious puberty, genetic disorders of sex development, or conditions posing an imminent danger of death or major bodily impairment. The bill also clarifies that mental or behavioral health services for gender dysphoria are not subject to this prohibition, provided they do not involve the restricted procedures or drugs.