Illinois Statutes Chapter 770. Liens § 23/25. Examination of health care records

(a) Upon written request by medical authorization signed by the patient or the patient's representative, or by subpoena, any party to a pending court action against whom a claim is asserted for damages resulting from injuries shall be permitted to examine the records of any health care professional or health care provider concerning the health care professional's or health care provider's treatment, care, or maintenance of the injured person. Within 20 days after receiving a written request by medical authorization signed by the patient or the patient's representative, or by subpoena, a health care professional or health care provider claiming a lien under this Act must furnish to the requesting party, or file with the clerk of the court in which the action is pending, all of the following:

(b) If a health care professional or health care provider fails or refuses to give or file a written statement in conformity with and as required by subsection (a) after being so requested in writing in conformity with subsection (a), the lien of that health care professional or health care provider under this Act shall immediately become null and void.