Tenn. Code Ann. § 53-10-209: Construction

(a) Nothing in this part shall be construed as authorizing any person or entity to interfere with a prescriber's obligation to exercise independent medical judgment in rendering health care services to patients.

(b) Nothing in this part shall be construed to interfere with or otherwise limit, constrain or alter the ability of any health plan or payor, including the bureau of TennCare, to utilize prior authorization in the implementation of a formulary or preferred drug list.