Replaces everything after the enacting clause. Amends the Criminal Code of 2012. Provides that a person commits aggravated endangering the life or health of a child when he or she knowingly and willfully deprives a child under the age of 18 of necessary food, shelter, health care, or supervision appropriate to the age of the child, when the person is reasonably able to make the necessary provisions and which deprivation substantially harms the child's physical, mental, or emotional health. Provides that the failure to provide specific medical treatment shall not alone be considered willful deprivation of health care if the person can show that the treatment would conflict with the tenets and practice of a recognized religious denomination of which the person is an adherent or member. Provides that the exception does not in any manner restrict the right of an interested party to petition the court on behalf of the best interest of the child. Provides that this offense is a Class 4 felony.