Stanley Ann Dunham didn't have a problem with her health insurance coverage but with her co-pays [View all]

[dkf]

And out of pocket expenses.

The insurance company she was fighting with was her disability carrier which as claiming she had a preexisting condition in order to keep from paying disability benefits that she needed to pay her out of pocket expenses.

Per the WP via a biography;

But Obama’s mother had full coverage for the disease — her battle was to get disability insurance payments for her out-of-pocket expenses — according to “A Singular Woman,” a biography of Dunham by Janny Scott, who covered the campaign as a reporter for the New York Times.

The White House did not dispute the book’s account, and a spokesman said Scott’s reporting makes clear the president’s mother incurred several hundred dollars of unreimbursed health-care costs each month. “She first could not get a response from the insurance company, then was refused coverage,” spokesman Nicholas Papas said. “This personal history of the president’s speaks powerfully to the impact of preexisting condition limits on insurance protection from health-care costs.”

Scott based her account on correspondence between Dunham and Cigna, the disability insurance carrier, that Dunham’s friends shared with her.

http://www.washingtonpost.com/politics/obamas-mother-had-health-insurance-according-to-biography/2011/07/14/gIQAUFm7EI_story.html