(April 7, 2017, 8:31 AM EDT) -- RICHMOND, Va. — An insurer filed an appellant brief in the Fourth Circuit U.S. Court of Appeals on Dec. 16, arguing that the court should reverse the judgment of a district court because it lacked subject matter jurisdiction over an underlying workers’ compensation case based on the West Virginia workers’ compensation administrative system (Brickstreet Mutual Insurance Company v. Zurich American Insurance Company, No. 16-2204, 4th Cir.)....