(215 ILCS 165/15) (from Ch. 32, par. 609)
    Sec. 15. Every contract entered into by a health services plan corporation and a subscriber shall be in writing and a certificate stating the terms and conditions thereof shall be furnished the subscriber. No such subscription certificate shall be issued unless it contains the following provisions:
        (a) A statement of the nature of the health services to be provided and the period
    
during which the certificate shall be effective; and if there are any types of services to be excepted, a detailed statement of such exceptions printed as hereinafter specified;
        (b) A statement of the terms or conditions, if any, upon which the certificate may be
    
cancelled or otherwise terminated at the option of either party;
        (c) A statement that the subscription certificate constitutes the entire contract
    
between the corporation and the subscriber and includes any endorsements attached;
        (d) A statement that no statement by the subscriber in his application for a certificate
    
shall void the contract or be used in any legal proceeding thereunder, unless such application or an exact copy thereof is included in or attached to the certificate, and that no agent or representative of such corporation other than an officer or officers designated in the certificate, are authorized to change the contract or waive any of its provisions;
        (e) A statement that if the subscriber defaults in making any payment under the
    
certificate, the subsequent acceptance of a payment by the corporation or by one of its duly authorized agents shall reinstate the certificate, but with respect to sickness and injury may cover only such sickness or injury as may be first manifested more than a specified number of days, not exceeding ten, after the date of such acceptance;
        (f) A statement of the period of grace which will be allowed the subscriber for making
    
any payment due under the contract. Such period shall not be less than ten days;
        (g) A statement that indemnity in the form of cash will not be paid to any subscriber
    
except in reimbursement for payments made by the subscriber to a physician, dentist or dental surgeon for which the subscriber had received express authorization by the corporation and for which the corporation was liable at the time of such payment.
        (h) Every voluntary health services plan and each subscription certificate issued by a
    
health services plan corporation and providing coverage for hospital treatment shall provide coverage for treatment of alcoholism in a hospital licensed under the Hospital Licensing Act approved July 1, 1953 as amended or an approved public or private alcoholism treatment facility meeting the standards prescribed in Section 9 (1) of the Uniform Alcoholism and Intoxication Treatment Act enacted by the 78th General Assembly and approved under Section 9 (3) of the Uniform Alcoholism and Intoxication Treatment Act enacted by the 78th General Assembly.
(Source: P.A. 78-767.)