Insurance Companies, Agents, Brokers, Policies - As introduced, establishes the Tennessee commission of insurance review; prohibits a health insurance entity from offering or maintaining a health benefit plan that uses downcoding in a manner that prevents the provider from collecting the fee for actual services performed either from the health benefit plan or the patient; makes other changes related to health insurance and health insurers. - Amends TCA Title 4; Title 8; Title 56 and Title 71.