Indiana Code Title 12. Human Services § 12-24-13-4

Sec. 4. (a) Each state institution shall establish a charge structure for institutional services and treatment.  The charge structure must be approved by the director of the division before July 1 of each year and, once approved, the charge structure must be effective for the following state fiscal year.

(b) Except as provided in section 5 of this chapter, each patient in a state institution and the responsible parties, individually or collectively, are liable for the payment of the charges for the treatment and maintenance of the patient.