405 ILCS 5/1-129
Current through Public Acts 103-1 through 103-587, 103-589, and 103-590
"Mental illness" means a mental, or emotional disorder that substantially impairs a person's thought, perception of reality, emotional process, judgment, behavior, or ability to cope with the ordinary demands of life, but does not include a developmental disability, dementia or Alzheimer's disease absent psychosis, a substance use disorder, or an abnormality manifested only by repeated criminal or otherwise antisocial conduct.
405 ILCS 5/1-129