Legislation that would change how patients are billed for out-of-network hospital visits is being backed by a coalition that includes prominent labor groups and business organizations like the Business Council.

The coalition is launching a TV ad campaign this week to push for the legislation, which would empower an independent arbitrator to review hospital billing, a process the state has in place already for emergency room doctor bills.

The bill is backed by more than 40 groups, including Consumer Reports, the United Federation of Teachers, the New York State United Teachers union, the Business Council and the Civil Service Employees Association.

The ads will air in Albany, Westchester and Long Island on cable and broadcast TV.