June 12 (Reuters) - The United States Department of Health and Human Services (HHS) on May 31 agreed to allow UnitedHealth Group to notify people whose data was exposed during a hack on its Change Healthcare unit in February, the Wall Street Journal reported on Wednesday.

UnitedHealth and HHS did not immediately respond to a Reuters request for comment. (Reporting by Sriparna Roy in Bengaluru; Editing by Devika Syamnath)