St. Louis ? Centene Corp. says it will begin offering coverage under the Affordable Care Act for insurance exchanges in Missouri, Kansas and Nevada next year at a time other insurers are pulling out of such marketplaces.

Centene announced the expansion Tuesday. It didn’t specify whether its foray into Missouri and Kansas will fill a 32-county void that will result from Blue Cross and Blue Shield of Kansas City’s decision to leave that individual insurance marketplace next year.

Blue Cross Blue Shield of Kansas, a separate company that serves 103 of the 105 counties in Kansas, plans to remain in the marketplace.

That Blue Cross KC decision affects about 67,000 people, and 25 Missouri counties will be left with no insurance provider under the exchanges unless another company steps in to sell coverage.

Centene also plans to expand in Florida, Georgia, Indiana, Ohio, Texas and Washington.

It says 90 percent of its exchange customers are eligible for subsidies.