Tex. Ins. Code § 1579.109
(b) The administrator of a managed care plan provided under this chapter shall pay for covered emergency care performed by or a covered supply related to that care provided by an out-of-network provider at the usual and customary rate or at an agreed rate. The administrator shall make a payment required by this subsection directly to the provider not later than, as applicable:
(c) For emergency care subject to this section or a supply related to that care, an out-of-network provider or a person asserting a claim as an agent or assignee of the provider may not bill an enrollee in, and the enrollee does not have financial responsibility for, an amount greater than an applicable copayment, coinsurance, and deductible under the enrollee's managed care plan that:
(1) is based on:
Added by Acts 2019, 86th Leg., R.S., Ch. 1342 (S.B. 1264), Sec. 1.18, eff. September 1, 2019.