104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026
SB3842

 

Introduced 2/6/2026, by Sen. Andrew S. Chesney

 

SYNOPSIS AS INTRODUCED:
 
405 ILCS 5/1-129

    Amends the Mental Health and Developmental Disabilities Code. Expands the definition of "mental illness" to include transgenderism, or the condition of identifying with a gender other than the one assigned at birth.


LRB104 19809 SSS 33259 b

 

 

A BILL FOR

 

SB3842LRB104 19809 SSS 33259 b

1    AN ACT concerning mental health.
 
2    Be it enacted by the People of the State of Illinois,
3represented in the General Assembly:
 
4    Section 5. The Mental Health and Developmental
5Disabilities Code is amended by changing Section 1-129 as
6follows:
 
7    (405 ILCS 5/1-129)
8    Sec. 1-129. Mental illness. "Mental illness" means a
9mental, or emotional disorder that substantially impairs a
10person's thought, perception of reality, emotional process,
11judgment, behavior, or ability to cope with the ordinary
12demands of life. "Mental illness" includes transgenderism, or
13the condition of identifying with a gender other than the one
14assigned at birth. "Mental illness" , but does not include a
15developmental disability, dementia or Alzheimer's disease
16absent psychosis, a substance use disorder, or an abnormality
17manifested only by repeated criminal or otherwise antisocial
18conduct.
19(Source: P.A. 100-759, eff. 1-1-19.)