Mo. Rev. Stat. § 198.151: Usual trade discounts and employment benefits not kickbacks, bribes or rebates.

Sections 198.145 and 198.148 do not apply to:

(1) Any usual trade discount which is dependent solely upon time of payment or quantity buying to wholesalers which is obtained by a health care provider regardless of whether reflected in the cost claimed or charges made by the health care provider under Medicaid; and

(2) Any amount paid by an employer to an employee, who has a bona fide employment relationship with the employer, for employment in the provision of covered services or items.