Arkansas Code
Chapter 46 - Medical, Nursing, Hospital, and Ambulance Service Lien Act
§ 18-46-113. Waiver or release of claim by patient

(a) A patient who has been notified by a practitioner, nurse, hospital, or ambulance service provider of a claim of lien on any claim or right of action that the patient has because of the injury for which service was rendered shall not waive or release that claim, or any part of it, unless:
(1) The amount claimed by the practitioner, nurse, hospital, or ambulance service provider, under the lien, has been paid; or
(2) The practitioner, nurse, hospital, or ambulance service provider has in writing released his or her lien.

(b) Any waiver or release given contrary to the provisions of this chapter shall be void and of no effect.