The health care reform bill outlaws denial of insurance to those with preexisting conditions. But this change won’t take full effect for years. In America, people with health problems but no health insurance long have struggled to find and afford coverage. To those with such preexisting conditions, America’s health system has seemed, at the least, capricious: Why has it been so hard to get insurance when you need it most?. nsurers have seen this same problem from another viewpoint. Selling coverage to someone with a preexisting condition might be a bit like selling auto insurance to a driver who wants help with an already-dented car. Insurance is meant to protect someone against future events, not pay for things that have already occurred. Well, the healthcare reform bill signed into law Tuesday by President Obama will end this situation by outlawing denial of insurance coverage to those with preexisting conditions. It is one of the most popular individual provisions in the entire 2,000-plus-page legislation. But this change won’t take full effect for years. The rollout starts with children.