215 ILCS 5/356L

No individual policy of accident or health insurance shall include any provision which shall have the effect of denying coverage to or on behalf of an insured under such policy on the basis of a failure by the insured to file a notice of claim within the time period required by the policy, provided such failure is caused solely by the physical inability or mental incapacity of the insured to file such notice of claim because of a period of emergency hospitalization.