Ill. Admin. Code tit. 77, § 340.1420
a) Contract Execution
1) Before a person is admitted to a facility, or at the expiration of the period of previous contract, or when the source of payment for the resident's care changes from private to public funds or from public to private funds, a written contract shall be executed between a licensee and the following in order of priority:
n) The contract shall specify the services that may be provided to supplement the contract and the charges for the services. (Section 2-202(g)(3) of the Act)
v) In addition to all other contract specifications contained in this Section, admission contracts shall also specify: