305 ILCS 5/11-13
2021 Illinois Compiled Statutes|Chapter 305 - PUBLIC AID|305 ILCS 5/ - Illinois Public Aid Code.|Article XI - General Provisions Pertaining To Rights And Responsibilities Of Applicants And Recipients

 (from Ch. 23, par. 11-13)Sec. 11-13. Conditions For Receipt of Vendor Payments - Limitation Period  For Vendor Action - Penalty For Violation.  A vendor payment, as defined in  Section 2-5 of Article II, shall constitute payment in full for the goods  or services covered thereby. Acceptance of the payment by or in behalf of  the vendor shall bar him from obtaining, or attempting to obtain,  additional payment therefor from the recipient or any other person. A  vendor payment shall not, however, bar recovery of the value of goods and  services the obligation for which, under the rules and regulations of the  Illinois Department, is to be met from the income and resources available  to the recipient, and in respect to which  the vendor payment of the  Illinois Department or the local governmental unit represents  supplementation of such available income and resources.Vendors seeking to enforce obligations of a governmental unit or the  Illinois Department for goods or services (1) furnished to or in behalf of  recipients and (2) subject to a vendor payment as defined in Section 2-5,  shall commence their actions in the appropriate Circuit Court or the Court  of Claims, as the case may require, within one year next after the cause of  action accrued.A cause of action accrues within the meaning of this Section upon the following date:(1) If the vendor can prove that he submitted a bill     for the service rendered to the Illinois Department or a governmental unit within 180 days after the date the service was rendered, then (a) upon the date the Illinois Department or a governmental unit mails to the vendor information that it is paying a bill in part or is refusing to pay a bill in whole or in part, or (b) upon the date one year following the date the vendor submitted such bill if the Illinois Department or a governmental unit fails to mail to the vendor such payment information within one year following the date the vendor submitted the bill; or(2) If the vendor cannot prove that he submitted a     bill for the service rendered within 180 days after the date the service was rendered, then upon the date 12 months following the date the vendor rendered the service to the recipient.In the case of long term care facilities, where the Illinois Department initiates the monthly billing process for the vendor, the cause of action shall accrue 12 months after the last day of the month the service was rendered.This paragraph governs only vendor payments as  defined in this Code and as limited by regulations of the Illinois  Department; it does not apply to goods or services purchased or contracted  for by a recipient under circumstances in which the payment is to be made  directly by the recipient.Any vendor who accepts a vendor payment and who knowingly obtains or  attempts to obtain additional payment for the goods or services covered by  the vendor payment from the recipient or any other person shall be guilty  of a Class B misdemeanor.  (Source: P.A. 97-689, eff. 6-14-12.)