--(BUSINESS WIRE)--UnitedHealth Group (NYSE: UNH) continues to make progress in mitigating the impact to consumers and care providers of the unprecedented cyberattack on the U.S. health system and the Change Healthcare services, while continuing to expand financial assistance to affected providers. Today Change Healthcare will begin releasing medical claims preparation software, an important step in the resumption of services. This will be made available to thousands of customers over the next several days. ...