“Provider” means a nonstock corporation organized under ch. 181 that is a nonprofit corporation, as defined in s. 181.0103 (17), and that contracts under this section to provide client services on the basis of a unit rate per client service or a county department under s. 46.215, 46.22, 46.23, 51.42, or 51.437 that contracts under this section to provide client services on the basis of a unit rate per client service.

“Rate-based service” means a service or a group of services, as determined by the department, that is reimbursed through a prospectively set rate and that is distinguishable from other services or groups of services by the purpose for which funds are provided for that service or group of services and by the source of funding for that service or group of services.