“Person with a severe or profound intellectual disability” means a person (i) whose intelligence quotient does not exceed 40 or (ii) whose intelligence quotient does not exceed 55 and who suffers from significant mental illness to the extent that the person’s ability to exercise rational judgment is impaired. In any proceeding in which the defendant is charged with committing a violation of Section 10-2, 10-5, 11-1.30, 11-1.60, 11-14.4, 11-15.1, 11-19.1, 11-19.2, 11-20.1, 11-20.1B, 11-20.3, 12-4.3, 12-14, or 12-16, or subdivision (b)(1) of Section 12-3.05, of this Code against a victim who is alleged to be a person with a severe or profound intellectual disability, any findings concerning the victim’s status as a person with a severe or profound intellectual disability, made by a court after a judicial admission hearing concerning the victim under Articles V and VI of Chapter IV of the Mental Health and Developmental Disabilities Code shall be admissible.