1. (1) These Rules are required for all medical services and products provided on or after July 1,

   1. 2018. For medical services and products provided prior to July 1, 2018, medical billing and processing shall be in accordance with the rules in effect at the time the health care was provided unless both payer and provider elect to comply with these Rules.

Authority: T.C.A. § 50-6-202(a)-(c). Administrative History: Original rules filed December 13, 2017; effective March 13, 2018.