Critical Illness Insurance — a limited form of health insurance that pays a lump sum if the named insured is diagnosed as having one of the specific life-threatening conditions defined in the policy. Critical illness insurance is sometimes combined with life insurance, where the policy pays its benefits if the insured is diagnosed with a listed critical illness or when the insured dies, whichever happens first. Most critical illness policies cover the illnesses of advanced cases of cancer, severe heart attack, and stroke that results in permanent symptoms. Comprehensive critical illness policy