Pre-existing condition defined under Family health insurance policy?

A pre-existing condition is a disease or ailment that the insured family member suffers from before buying the family health insurance policy. These illnesses usually have a waiting period before they are covered under the family floater health insurance policy. You can file a claim for a pre-existing condition only after this waiting period is complete. Generally speaking, waiting periods for pre-existing illnesses range from 2 to 4 years.