A newly introduced Illinois Senate bill that would redefine transgender identity as a mental illness is drawing criticism from civil rights groups, medical professionals, and LGBTQ advocates across the state.
Senate Bill 3842, filed Feb. 6 by Republican Sen. Andrew Chesney, proposes changes to the Illinois Mental Health and Developmental Disabilities Code. Specifically, the bill would amend Section 405 ILCS 5/1-129 by expanding the definition of “mental illness” to include “transgenderism, or the condition of identifying with a gender other than the one assigned at birth.”
Current Illinois law defines mental illness as a condition that substantially impairs a person’s thinking, perception of reality, emotional process, judgment, or behavior. SB 3842 would add gender identity to that definition, placing transgender identity within a statutory framework typically used for psychiatric disorders and involuntary treatment standards.
The bill received its first reading in the Illinois Senate and has been referred to the Assignments Committee. As of this week, no committee hearing has been scheduled, and the proposal has not advanced to substantive debate.
Supporters of the bill argue that existing gender identity protections conflict with privacy and safety concerns, particularly in schools, sports, and institutional settings. In public statements reported by local media, proponents said the legislation is intended to challenge what they describe as ideological policies surrounding gender identity rather than to target individuals directly.
Opponents strongly dispute that framing. Advocacy organizations warn that the bill would roll back decades of progress in civil rights and medical consensus. Illinois law currently prohibits discrimination based on gender identity under the Illinois Human Rights Act, which covers employment, housing, education, and public accommodations.
Civil rights groups argue that labeling transgender identity as a mental illness could expose transgender people to increased stigma, discrimination, and barriers to care. They also warn that the language could be used to justify coercive treatment or undermine legal protections in other areas of state law.
Medical organizations have also raised concerns. Major professional bodies, including the American Psychiatric Association, no longer classify being transgender as a mental disorder. Mental health experts note that such classifications were removed years ago because they were found to cause harm rather than improve health outcomes.
Healthcare advocates in Illinois say reintroducing this language into statute could discourage transgender patients from seeking medical or mental health care, particularly in crisis situations where legal definitions of mental illness carry serious consequences.
The Illinois Department of Human Rights currently enforces gender identity protections statewide. Advocacy groups say SB 3842 conflicts with that enforcement framework and could invite legal challenges if enacted.
The bill remains in early legislative stages. Lawmakers, advocacy organizations, and community members are expected to weigh in if the proposal moves forward during the current session.
