If you know of an injury to one of your employees, or an employee alleges an injury to you, that has resulted in five (5) full or partial calendar days of disability, you must file an Employer's First Report of Injury Or Fatality Form - Form 101. You are required to file this form with the DIA and your insurer within seven (7) calendar days, not including Sundays and legal holidays, from the fifth day of disability. You should also give a copy to the injured employee. If the employee reports the injury to you after he or she has already been disabled for five (5) or more days, you would have to file the Employer's First Report of Injury Or Fatality Form - Form 101 within seven (7) calendar days, not including Sundays and legal holidays, of the day the injury was actually reported to you. If the injury results in just medical bills, or fewer than five (5) full or partial calendar days of disability, you would report it just to your insurer, on whatever form they have for this purpose.