Lawsuits against Change Healthcare are piling up in the wake of a crippling cyberattack in late February.

Two dozen class-action lawsuits had been filed as of early April, according to a court filing. Thirteen were filed by consumers citing concerns about data theft, and 11 came from providers who said they struggled to receive payment while Change's systems were offline. In a legal filing, plaintiffs said Change failed to protect the private health information of consumers and they could be at risk of identity theft. Plaintiffs also said they also expect "additional class actions will soon commence in other federal courts."

Change, a business unit of UnitedHealth Group, asked a U.S. court panel to consolidate the lawsuits in Nashville, where the company is based. Most current cases have been filed in Tennessee, and the judge who likely would be assigned is "well equipped" to handle the case, it said in its filing. Lawsuits could proceed in at least seven districts across the country if the cases are not centralized