Good day
Please can you advise the classification,

Scenario 1
The receptionist goes upstairs to call ask her friend what time they were leaving as it was close to home time.
She falls on the stairs. She reports the incident, but declines medical assistance at the time.
The next morning she comes to work, but is in a state, her leg and ankle are terribly swollen and she is in a lot of pain.
She is taken to casualty where she is bandaged, given crutches, medication and booked off for a week.
Is this in fact and IOD?
If it is, is it a lost time or a medical treatment?

Scenario 2
An employee with epilepsy, while working has an epileptic episode, falls flat on his face and cuts his lip open?
Is it an IOD?

Scenario 3
An employee makes himself oats for breakfast (his own oats) in the microwave supplied by the employer. As he takes it out of the microwave it bubbles and he is burnt with hot oats?
Is it an IOD?