215 ILCS 180/75

(a) Each health carrier shall include a description of the external review procedures in, or attached to, the policy, certificate, membership booklet, and outline of coverage or other evidence of coverage it provides to covered persons. (b) The description required under subsection (a) of this Section shall include a statement that informs the covered person of the right of the covered person to file a request for an external review of an adverse determination or final adverse determination with the Director. The statement shall explain that external review is available when the adverse determination or final adverse determination involves an issue of medical necessity, appropriateness, health care setting, level of care, or effectiveness. The statement shall include the toll-free telephone number and address of the Office of Consumer Health Insurance within the Department of Insurance.