A dozen Michigan communities say they were overcharged $40 million in hidden fees by Blue Cross Blue Shield of Michigan and are demanding that money back.

Lawsuits have been filed by several communities, and others are considering joining a class action suit against the state's largest insurer. Blue Cross has settled two cases related to the fees. Attorney William Horton said more than 1,000 government bodies may have unknowingly paid the fees since 1994, when he says Blue Cross changed its billing practices.

At that time, Horton, the attorney representing Oakland County, says the insurer began tacking on administrative fees, which the lawsuits charge were intentionally hidden from governmental clients.

"We have internal memos that say how to set up these plans," Horton says. "They were used for training their sales people to hide these fees."

Blue Cross spokeswoman Helen Stojic said the fees were not hidden and have enabled the communities to realize a savings through the Blues' hospital networks.

"The disputed fees were specifically referenced in each of these groups' contracts," she said in an e-mailed statement.

But Horton argues the contract language is so complex only a Blue Cross insider would know about the fees.

The legal action is just the latest punch to the nonprofit insurer under scrutiny for its rate increases, corporate bonuses and a reserve fund of $2.3 billion.

The lawsuits followed last fall's settlement reached by Oakland County with Blue Cross just days before the case was to go to trial. The county had paid nearly $17 million in unknown fees since 1994.

As result of the settlement, the county was paid $650,000 in cash and will receive three years of free administration by the Blues, according to the agreement obtained by The Detroit News under the Freedom of Information Act. Oakland legal counsel Keith Lerminiaux said the free administration of its plan for 5,000 employees and retirees is worth about $8.5 million.

An Oakland County human resource employee discovered the fees while renewing the contract in 2006, Lerminiaux said.

The Road Commission for Oakland County also filed suit and in January reached a settlement in which Blue Cross agreed to pay $150,000 in cash, $100,000 in credit and reduced rates on administration costs over three years.

Livingston County is the latest to file a lawsuit. Administrator Bob Block said roughly $2 million was paid in unauthorized fees to Blue Cross. He said he never saw an invoice. The hospital claims were listed in a summary.

"We never agreed to pay those fees, so we should be reimbursed those costs. We believe fraud is involved," Block said.

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