Period of Incapacity for Work
Period of Incapacity for Work - (noun)
In the UK, this is a period of sickness that lasts for more than 4 days in a row.
Source: Adapted from gov.uk
Example of Use: When calculating the period of incapacity for work, all the days you are sick count towards these four days, including weekends, holidays and any other days when you would not normally expect to be working.