There is currently no functionality that allows the sickness reason to be edited if the wrong one has been selected. It's important for HR reporting that we are analysing the data with the right reasons and so the fact that we are unable to edit is an issue. It would be a great addition that this was an option to carry our when necessary.
Needs Votes
Ideas Administrator

Thank you for your suggestion. To help us in our review process, we’re requesting votes from the community to help us understand the importance of this functionality. This posting is provided “as is” with no warranties, and confers no rights.