Mo. Rev. Stat. § 197.357
For the purposes of reimbursement under section 208.152, project costs for new institutional health services in excess of ten percent of the initial project estimate whether or not approval was obtained under subsection 7 of section 197.315 shall not be eligible for reimbursement for the first three years that a facility receives payment for services provided under section 208.152. The initial estimate shall be that amount for which the original certificate of need was obtained or, in the case of facilities for which a binding construction or purchase contract was executed prior to October 1, 1980, the amount of that contract. Reimbursement for these excess costs after the first three years shall not be made until a certificate of need has been granted for the excess project costs. The provisions of this section shall apply only to facilities which file an application for a certificate of need or make application for cost-overrun review of their original application or waiver after August 13, 1982.
§ 197.357, RSMo