California Code, Welfare and Institutions Code - WIC § 14053.3

(a) Except as provided under federal law, federal financial participation reimbursement is not allowed for ancillary services provided to persons residing in facilities that have been found to be institutions for mental disease (IMD), and since, consistent with Part 2 (commencing with Section 5600) of Division 5 and Chapter 6 (commencing with Section 17600) of Part 5, counties are financially responsible for specialty mental health services and related ancillary services provided to persons through county mental health programs when Medi-Cal reimbursement is not available, when it is determined that Medi-Cal reimbursement has been paid for ancillary services for residents of IMDs, both the federal financial participation reimbursement and any state funds paid for the ancillary services provided to residents of IMDs shall be recovered from counties by the department in accordance with applicable state and federal statutes and regulations.

(b) Mental health plans shall report to the department admission and discharge dates for Medi-Cal beneficiaries in institutions for mental diseases on a quarterly basis in a format provided by the department.