Tennessee Code Title 56. Insurance § 56-7-2408

(a) Whenever any contract, plan, or policy of insurance issued in this state provides for reimbursement of any service that is within the lawful scope of practice of a nurse in advanced practice, the insured or other person entitled to benefits under the contract, plan, or policy shall be entitled to reimbursement for the services, whether the services are performed by a duly licensed physician or a duly licensed nurse in advanced practice. As used in this section, “nurse in advanced practice” means a registered nurse who is duly licensed by the state board of nursing and who is also a nationally certified nurse practitioner, a nationally certified registered nurse anesthetist, or a nationally certified clinical specialist.

(b) Reimbursements shall be made in a timely manner.

(c) The provisions of this section relating to the services of a nurse in advanced practice apply to all contracts, plans, or policies issued or renewed on or after July 1, 1996.