The diagnosis was only the first shock. The second came a few weeks later, in an Aug. 5 letter from Pat's health-insurance company. For six years — since losing the last job he had that provided medical coverage — Pat had been faithfully paying premiums to Assurant Health, buying a series of six-month medical policies, one after the other, always hoping he would soon find a job that would include health coverage. Until that happened, "unexpected illnesses and accidents happen every day, and the resulting medical bills can be disastrous," Assurant's website warned. "Safeguard your financial future with Short Term Medical temporary insurance. It provides the peace of mind and health care access you need at a price you can afford." [But] diagnosing and treating an illness may not fall neatly into six-month increments. While Pat had been continuously covered since 2002 by the same company, Assurant Health, each successive policy treated him as a brand-new customer. In looking back over Pat's medical records, the company noticed test results from December, eight months earlier. Though Pat's doctors didn't determine the precise cause of the problem until the following July, his kidney disease was nonetheless judged a "pre-existing condition" — meaning his insurance wouldn't cover it, since he was now under a different six-month policy from the one he had when he got those first tests..... I tried to talk to Assurant for this story. Its only response was a written statement from Scott Krienke, senior vice president for product lines: "Due to privacy regulations, we cannot discuss the specifics of any of our customers' coverage."