710 ILCS 15/10
Arbitration proceedings under this Act shall be commenced by serving a notice of demand for arbitration, together with a statement of the claim and cause of action, on all parties to the health care arbitration agreement from whom damages are sought. The statement of the claim and cause of action shall be substantially in the form of a complaint under the Civil Practice Law. Service of the notice and statement shall be by any method authorized for service of complaints under the Civil Practice Law or by mail. For purposes of any statute of limitations, notice of a demand for arbitration to any party from whom damages are sought, whether by mail or any other process, shall be deemed to have tolled such statute as to all parties named in the notice.
710 ILCS 15/10