410 ILCS 150/30
A person with an autism spectrum disorder, or the person's parent or legal guardian on his or her behalf, retains the right to seek further medical opinions or care from other providers.
A parent or legal guardian shall not be threatened with loss of parental or legal guardianship rights for a person with autism spectrum disorder for pursuing additional medical expertise, especially in the case of trying to ascertain appropriate identification and diagnosis of underlying or co-occurring medical conditions that may or may not be exacerbating symptoms primarily associated with an autism spectrum disorder. This Section does not abrogate or restrict any responsibilities set forth under the Abused and Neglected Child Reporting Act.
Any person diagnosed as having an autism spectrum disorder or his or her parent or legal guardian shall not be denied the right to pursue appropriate and available medical interventions or treatments that may help to ameliorate or improve the symptoms primarily associated with an autism spectrum disorder or co-occurring or otherwise diagnosed medical condition.
Any person diagnosed as having an autism spectrum disorder or his or her parent or legal guardian shall not be denied the right to decline a medical treatment or intervention.
410 ILCS 150/30