Minn. Stat. § 148E.235
Subd. 1. Fees and payments.
Subd. 2. Billing for services not provided.
A social worker must not bill for services that have not been provided except that, with prior notice to the client, a social worker may bill for failed appointments or for cancellations without sufficient notice. A social worker may bill only for provided services which are necessary and appropriate. Financial responsibility for failed appointment billings resides solely with the client and such costs may not be billed to public or private payers.
Subd. 3. No payment for referrals.
A social worker must not accept or give a commission, rebate, or other form of remuneration solely or primarily to profit from the referral of a client.
Subd. 4. Fees and billing practices.
A social worker must not engage in improper or fraudulent billing practices, including, but not limited to, violations of the federal Medicare and Medicaid laws or state medical assistance laws.