Ill. Admin. Code tit. 56, § 350.290
a) Basic Requirement
An injury or illness meets the general recording criteria, and is, therefore recordable, if it results in any of the following: death, days away from work, restricted work or transfer to another job, medical treatment beyond first aid, or loss of consciousness. A case meets the general recording criteria if it involves a significant injury or illness diagnosed by a physician or other licensed health care professional, even if it does not result in death, days away from work, restricted work or job transfer, medical treatment beyond first aid, or loss of consciousness.
b) Implementation
1) Recording Required
A work-related injury or illness must be recorded if it results in one or more of the following:
E) Loss of consciousness (see subsection (b)(6)).
2) Employee Death
The employer must record an injury or illness that results in death by entering a check mark on the OSHA 300 Log in the space for cases resulting in death. He or she must also report any work-related fatality to IDOL within 8 hours, as required by Section 350.410.
3) Days Away from Work
When an injury or illness involves one or more days away from work, record the injury or illness on the OSHA 300 Log with a check mark in the space for cases involving days away and an entry of the number of calendar days away from work in the number of days column. If the employee is out for an extended period of time, enter an estimate of the days that the employee will be away and update the day count when the actual number of days is known. Begin counting days away on the day after the injury occurred or the illness began.
4) Advice of Health Care Professional
5) Non-Work Days
6) Day Before Scheduled Time Off
When a worker is injured or becomes ill on the day before scheduled time off, such as a holiday, planned vacation, or temporary closing, the case needs to be recorded only if the employer receives information from a licensed health care professional indicating that the employee should not have worked, or should have performed only restricted work, during the scheduled time off. The injury or illness shall be recorded as a case with days away from work or restricted work and the day counts shall be entered, as appropriate.
7) Limitation on Days Counted
8) Restricted Work or Job Transfer
A) When an injury or illness involves restricted work or job transfer but does not involve death or days away from work, record the injury or illness on the OSHA 300 Log by placing a check mark in the space for job transfer or restriction and entering the number of restricted or transferred days in the restricted workdays column. Restricted work occurs when, as the result of a work-related injury or illness:
I) Job Transfers
9) Medical Treatment Beyond First Aid
B) Medical treatment means the management and care of a patient to combat disease or disorder. For the purposes of this Subpart B, medical treatment does not include:
C) For the purposes of Subpart B, first aid means the following:
v) Using hot or cold therapy;
ix) Using eye patches;
xii) Using finger guards;
xiv) Drinking fluids for relief of heat stress.
E) The professional status of the person providing the treatment has no effect on what is considered first aid or medical treatment.
Even when these treatments are provided by a licensed health care professional, they are considered first aid. Similarly, treatment beyond first aid is considered to be medical treatment even when it is provided by someone other than a physician or other licensed health care professional.
10) Refusal of Medical Treatment
If a licensed health care professional recommends medical treatment, encourage the injured or ill employee to follow that recommendation. However, the case must be recorded even if the injured or ill employee does not follow the licensed health care professional's recommendation.
11) Loss of Consciousness
12) Significant Diagnosed Injury or Illness
Record a work-related injury or illness if the worker becomes unconscious, regardless of the length of time the employee remains unconscious.