(a) The amount of reimbursement for services provided by a network provider is determined by the contract between the network and the provider or group of providers.
(b) If an insurance carrier or network has preauthorized a health care service, the insurance carrier or network or the network’s agent or other representative may not deny payment to a provider except for reasons other than medical necessity.

(c) Out-of-network providers who provide care as described by § 1305.006 shall be reimbursed as provided by the Texas Workers’ Compensation Act and applicable rules of the commissioner of workers’ compensation.
(d) Subject to Subsection (a), billing by, and reimbursement to, contracted and out-of-network providers is subject to the requirements of the Texas Workers’ Compensation Act and applicable rules of the commissioner of workers’ compensation, as consistent with this chapter. This subsection may not be construed to require application of rules of the commissioner of workers’ compensation regarding reimbursement if application of those rules would negate reimbursement amounts negotiated by the network.
(e) An insurance carrier shall notify in writing a network provider if the carrier contests the compensability of the injury for which the provider provides health care services. A carrier may not deny payment for health care services provided by a network provider before that notification on the grounds that the injury was not compensable. Payment for medically necessary health care services provided prior to written notification of a compensability denial is not subject to denial, recoupment, or refund from a network provider based on compensability. If the insurance carrier successfully contests compensability, the carrier is liable for health care provided before issuance of the notification required by this subsection, up to a maximum of $7,000.
(f) If, for the purposes of credentialing and contracting with health care providers on behalf of the certified network, a person is serving as both a management contractor under § 1305.102 or a third party to which the network delegates a function and as an agent of the health care provider, the contract between the management contractor or third party and the health care provider must specify:
(1) the certified network’s contract rate for health care services; and
(2) the amount of reimbursement the health care provider will be paid after the health care provider agent’s fee for providing administrative services is applied.
(g) If a management contractor or third party to which the network delegates a function is serving as an agent for health care providers in the certified network, the management contractor or third party must disclose that relationship in its contract with the certified network.
(h) A contract described by Subsection (f), or a contract between a management contractor or third party to which the network delegates a function and a certified network, must comply with the requirements of this chapter.
(i) If a contract described by Subsection (f) complies with the requirements of this chapter, the health care provider shall be reimbursed in accordance with the terms of the contract. If a contract described by Subsection (f) does not comply with the requirements of this chapter, the health care provider shall be reimbursed in accordance with the certified network’s contracted rate.
(j) A certified network, management contractor, or third party to which the network delegates a function may not require a health care provider, as a condition for contracting with the certified network, to utilize as a health care provider agent the management contractor or the third party.