Tex. Ins. Code § 1369.402
A health benefit plan issuer or a pharmacy benefit manager may not directly or indirectly charge or hold a pharmacist or pharmacy responsible for a fee for any step of or component or mechanism related to the claim adjudication process, including:
Added by Acts 2015, 84th Leg., R.S., Ch. 10 (S.B. 94), Sec. 1, eff. September 1, 2015.