305 ILCS 5/14-1
As used in this Article, unless the context requires otherwise:
"Hospital" means any institution, place, building, or agency, public or private, whether organized for profit or not-for-profit, which is located in the State and is subject to licensure by the Illinois Department of Public Health under the Hospital Licensing Act or any institution, place, building, or agency, public or private, whether organized for profit or not-for-profit, which meets all comparable conditions and requirements of the Hospital Licensing Act in effect for the state in which it is located, and is required to submit cost reports to the Illinois Department under Title 89, Part 148, of the Illinois Administrative Code, but shall not include the University of Illinois Hospital as defined in the University of Illinois Hospital Act or a county hospital in a county of over 3 million population.
305 ILCS 5/14-1