215 ILCS 5/367k: Intoxication and narcotics; exclusion of coverage prohibited.

(a) A group or individual major medical policy of accident or health insurance or managed care plan amended, delivered, issued, or renewed after January 1, 2008 shall not, solely on the basis of the insured being intoxicated or under the influence of a narcotic, exclude coverage for any emergency or other medical, hospital, or surgical expenses incurred by an insured as a result of and related to an injury acquired while the insured is intoxicated or under the influence of any narcotic, regardless of whether the intoxicant or narcotic is administered on the advice of a health care practitioner.

(b) Coverage required under this Section may be subject to deductibles, copayments, coinsurance, or annual or maximum payment limits that are consistent with deductibles, copayments, coinsurance, or annual or maximum payment limits applicable to other similar coverage under the plan.