(1) Each health benefit plan issued or renewed after December 31, 2015, must offer benefits or coverage for medically necessary elemental formula, regardless of delivery method, when a licensed physician or other health care provider with prescriptive authority:
(a) Diagnoses a patient with an eosinophilic gastrointestinal associated disorder; and
(b) Orders and supervises the use of the elemental formula.
(2) Nothing in this section prohibits a health benefit plan from requiring prior authorization or imposing other appropriate utilization controls in approving coverage for medically necessary elemental formula.