Ohio Rev. Code Ann. § 5124.19
(A)
(1) For each fiscal year, the department of developmental disabilities shall determine each ICF/IID's per medicaid day payment rate for direct care costs as follows:
(a) Multiply the lesser of the following by the ICF/IID's annual average case-mix score determined or assigned under section 5124.192 of the Revised Code for the calendar year immediately preceding the fiscal year for which the rate will be paid:
(C)
(D)
(1) The department shall estimate the rate of inflation for the eighteen-month period beginning on the first day of July of the calendar year preceding the fiscal year in which a rate will be paid and ending on the thirty-first day of December of the fiscal year in which the rate will be paid, using the following: