WASHINGTON — Eric Trump has helped raise $16.3 million for St. Jude Children’s Research Hospital of Tennessee over the past decade, a hospital official said in a letter sent to a charity run by Mr. Trump, the president-elect’s son. The letter comes as Mr. Trump is preparing to remove his name from the charity to avoid conflicts of interest that could emerge from future fund-raising.

The letter confirms an account Mr. Trump gave to reporters that his organization has raised more than $15 million for the hospital, despite available tax records showing that the Eric Trump Foundation raised less than half that amount.

Mr. Trump’s announcement that he will remove his name from the organization is one of a series of steps that members of the Trump family are taking to address potential conflicts before the inauguration. Other steps include terminating planned Trump Organization projects in countries like Azerbaijan, Brazil, Colombia and Georgia.