A. Until January 1, 2027, an individual or group health insurance policy, health care plan or certificate of health insurance that is delivered, issued for delivery or renewed in this state that offers coverage of behavioral health services shall not impose cost sharing on those behavioral health services.

B. For the purposes of this section:

(1)     “behavioral health services” means professional and ancillary services for the treatment, habilitation, prevention and identification of mental illnesses, substance abuse disorders and trauma spectrum disorders, including inpatient, detoxification, residential treatment and partial hospitalization, intensive outpatient therapy, outpatient and all medications, including brand-name pharmacy drugs when generics are unavailable;

(2)     “coinsurance” means a cost-sharing method that requires the insured to pay a stated percentage of medical expenses after any deductible amount is paid; provided that coinsurance rates may differ for different types of services under the same individual or group health insurance policy, health care plan or certificate of health insurance;

(3)     “copayment” means a cost-sharing method that requires the insured to pay a fixed dollar amount when health care services are received, with the insurer paying the balance of the allowable amount; provided that there may be different copayment requirements for different types of services under the same individual or group health insurance policy, health care plan or certificate of health insurance; and

(4)     “cost sharing” means a copayment, coinsurance, deductible or any other form of financial obligation of the insured other than a premium or a share of a premium, or any combination of any of these financial obligations, as defined by the terms of an individual or group health insurance policy, health care plan or certificate of health insurance.