ILLINOIS INSURANCE CODE (COST LIST-PHARMACY BENEFITS MANAGER): Provides regulation for the creation of a list of drugs used to set the maximum allowable cost on which reimbursement to a pharmacy or pharmacist may be based. Provides that before a pharmacy benefits manager places or continues a particular drug on a maximum allowable cost list, the drug shall meet specified requirements. Provides for the duties of a pharmacy benefits manager in his or her use of a maximum allowable cost list. Provides for a reasonable administrative appeal procedure to allow pharmacies to challenge maximum allowable costs and reimbursements made under a maximum allowable cost for a specific drug. Provides that a pharmacy benefits manager shall not reimburse a pharmacy or pharmacist in this State in an amount less than the amount that the pharmacy benefits manager reimburses a pharmacy benefits manager affiliate for providing the same pharmacist services. Provides that a pharmacy or pharmacist may decline to provide pharmacist services to a patient or pharmacy benefits manager if, as a result of a maximum allowable cost list, a pharmacy or pharmacist is to be paid less than the pharmacy acquisition cost of the pharmacy providing pharmacist services. Provides that a violation of the provisions concerning maximum allowable cost lists and pharmacy benefits managers is a deceptive trade practice. Amends the Uniform Deceptive Trade Practices Act to make a conforming change. Defines terms.