In Minnesota's individual market, health insurers can lose big money if they wind up with a disproportionate share of sick patients who rack up massive bills.
Of the roughly 336,000 Minnesotans who were covered by individual plans at some point during 2015, slightly less than 2 percent — or 5,300 people — generated roughly 40 percent of all medical bills, according to the state's trade group for insurers.
Each of those 5,300 people generated an average of about $121,000 in claims that year, the trade group says, and collectively their medical costs came in around $640 million.
The numbers show why health plans are asking state lawmakers for a "reinsurance" program that would provide financial protection should they happen to sign up some of those with big health care needs.
Health insurers always have a legislative wish list, but there's added urgency this year since the state's individual market nearly collapsed for 2017. Last week, the outlook grew even more gloomy when insurers reported the individual market is now about 30 percent smaller than it was last year.
"It is a way to stabilize what products and what choices are out there, because it helps us to share high medical bills," Jim Schowalter, chief executive of the Minnesota Council of Health Plans, said of the reinsurance idea. "We're going to need something to make sure that those expenses aren't focused on just 5 percent or fewer of Minnesotans buying insurance on their own."
The worries come in the state's individual market for health insurance, which is a small source of coverage considering how most Minnesotans pay for health care. The state typically has seen about 5 percent of its residents purchase individual policies; most residents are covered through employer groups and government programs like Medicare.
The individual health plans cover people who are self-employed and those who otherwise lack access to benefits. It's the market undergoing a transformation with the federal Affordable Care Act, which sought to lower the nation's uninsured rate in part by directing people to the individual market.