Tex. Ins. Code § 1454.051

A health benefit plan issuer that reimburses a physician or health care provider for reproductive health or oncology services provided to women must reimburse the physician or provider in an amount at least equal to the annual average compensation per hour or unit that would be paid in the service area to a physician or provider for the same medical, surgical, hospital, pharmaceutical, nursing, or other similar resources used to provide the services if the resources would be used to provide health services exclusively to men or to the general population.