WASHINGTON (Reuters) - Health insurers told the U.S. government they would accelerate payments to some healthcare providers indirectly affected by a cyberattack on UnitedHealth Group's technology unit Change Healthcare, senior U.S. health officials said on Monday.

Change Healthcare, which was hit by a cyberattack on Feb. 21, processes about 50% of medical insurance claims in the United States, working with 900,000 physicians, 33,000 pharmacies, 5,500 hospitals and 600 laboratories.