A Tennessee man who suffers from depression has filed a federal lawsuit against the Aetna insurance company, alleging that the Hartford-based insurer refuses to cover a magnetic therapy treatment for his condition.

The claim, filed in the U.S. District Court for the District of Connecticut, seeks class action status. Attorneys from LeClairRyan and a California law firm called Psych-Appeal, which focuses on mental-health coverage cases, are among those representing the plaintiff. The claim names as defendants Aetna Inc., Aetna Life Insurance Co., both of Hartford, and MCMC LLC of Massachusetts.