Defining a "serious health condition" under FMLA

Any period of incapacity requiring absence from work for more than three continuous days with continuing treatment by a health care provider;

Continuing treatment by a health care provider for a chronic health condition;* OR
Any period of incapacity connected with inpatient care or overnight stay in a hospital, or residential medical-care facility

*FMLA leave does not have to be used in one lump sum. As in the case of a chronic condition, the leave may be taken on an intermittent basis..