20 ILCS 1805/52
Officers, warrant officers, or enlisted personnel of the Illinois National Guard who may be injured in any way, including without limitation through illness, while on duty and lawfully performing the same, are entitled to be treated by an officer of the medical or dental department detailed by the Adjutant General, or at the nearest appropriate medical treatment facility if such an officer is not detailed. Officers, warrant officers, or enlisted personnel of the Illinois National Guard who may be wounded or disabled in any way, while on duty and lawfully performing the same, so as to prevent their working at their profession, trade, or other occupation from which they gain their living, are entitled to be treated by an officer of the medical or dental department detailed by the Adjutant General, or at the nearest appropriate medical treatment facility if such an officer is not detailed, and, as long as the Illinois National Guard has not been called into federal service, are entitled to all privileges due them as State employees under the "Workers' Compensation Act", approved July 9, 1951, as now or hereafter amended, and the "Workers' Occupational Diseases Act", approved July 9, 1951, as now or hereafter amended. For purposes of this Section, injured, wounded, or disabled "while on duty and lawfully performing the same" means incurring an injury, wound, or disability while in a State military status pursuant to orders of the Commander-in-Chief, except when the injury, wound, or disability is caused by the officer's, warrant officer's, or enlisted personnel's own misconduct.
20 ILCS 1805/52