(a) A policy, plan, or contract that is issued or renewed on or after January 1, 2019, and that is subject to this article shall provide coverage, through the age of 20, for amino acid-based formula for the treatment of severe protein-allergic conditions or impaired absorption of nutrients caused by disorders affecting the absorptive surface, function, length, and motility of the gastrointestinal tract. This includes the following conditions, if diagnosed as related to the disorder by a physician licensed to practice in this state pursuant to either §30-3-1 et seq. or §30-14-1 et seq. of this code:
(1) Immunoglobulin E and Nonimmunoglobulin E-medicated allergies to multiple food proteins;