A new class action brought by telecommuters of Cigna Healthcare of California Inc. who say they were denied overtime and severance pay highlights the growth of a new type of legal dispute facing companies across the nation.

The Cigna case, which alleges that the company denied former home-based medical claims processors overtime and mileage compensation for traveling to and from mandatory meetings during the workday, follows a flood of cases filed by auto insurance claims adjusters in the past several years.