Mo. Rev. Stat. § 199.039: Means test, determination of amount to charge for services, director to promulgate rules and regulations.

The director of the department shall promulgate rules setting forth a reasonable standard means test which shall be applied to all facilities, programs and services operated or funded by the department in determining the amount to be charged to persons receiving services. Notwithstanding other provisions of sections 199.001 to 199.051, the department shall accept funds from federal reimbursement, third-party reimbursement, private pay or other funding sources.