1. (a) Medicaid program shall mean the Medical Assistance Program, under title XIX of the Federal Social Security Act, in accordance with a State plan approved by the United States Department of Health and Human Services.

2. (b) Eligible provider shall operate a chemical dependence program and shall be approved by the single State agency to provide services and operate as a Medicaid provider; and is one of the following:

   1. (1) a chemical dependence inpatient rehabilitation program which is certified under Part 818 of this Title by the Office of Alcoholism and Substance Abuse Services; or
   2. (2) a chemical dependence crisis program which is certified under Part 816 of this Title by the Office of Alcoholism and Substance Abuse Services to provide inpatient medically supervised withdrawal services or outpatient medically supervised withdrawal services; or
   3. (3) a chemical dependence outpatient or opioid treatment program certified under Part 822 of this Title by the Office of Alcoholism and Substance Abuse Services; or
   4. (4) an outpatient chemical dependency services for youth program and service certified under Part 823 of this Title by the Office of Alcoholism and Substance Abuse Services; or
   5. (5) a residential chemical dependency services for youth program certified under Part 817 of this Title by the Office of Alcoholism and Substance Abuse Services.
3. (c) New eligible provider shall mean an eligible provider that has operated a chemical dependence treatment program for which relevant historical chemical dependence services costs are not available.
4. (d) Single State agency shall mean the New York State Department of Health.

5. (e) Episode of care for purposes of this Part means:

   1. (1) in a chemical dependence outpatient program, the period of time beginning with the first contact by a prospective patient that leads to a face-to-face service within 30 days resulting in admission to a chemical dependence outpatient treatment program and concluding 30 days following the discharge date;
   2. (2) in an opioid treatment program, the period of time beginning with admission of a patient and concluding every 12 months thereafter.

For purposes of this Part: