Tex. Ins. Code § 1551.228
(b) The administrator of a managed care plan provided under the group benefits program 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 a participant in, and the participant does not have financial responsibility for, an amount greater than an applicable copayment, coinsurance, and deductible under the participant's managed care plan that:
(1) is based on:
Added by Acts 2019, 86th Leg., R.S., Ch. 1342 (S.B. 1264), Sec. 1.12, eff. September 1, 2019.