Ivana Trump, the ex-wife of former president Donald J. Trump, died accidentally of blunt impact injuries to her torso, according to New York City’s chief medical examiner.
The office, which announced its determination in a news release on Friday afternoon, said it would have no further comment on the death of Ms. Trump, 73.
Two law enforcement officials with knowledge of the matter had said on Thursday that the police were investigating whether Ms. Trump had fallen down the stairs at her Upper East Side home. One of the officials said there was no sign of forced entry at the home.
Ms. Trump and Mr. Trump, who had three children together, married in 1977 and divorced 13 years later. During their marriage, they formed a quintessential 1980s power couple and reigned jointly over New York’s tabloid culture. She was credited with giving him the nickname “The Donald.”
Ms. Trump commanded almost as much media attention as her husband in their time together, helping to define an era of gaudy excess that Mr. Trump later used to position himself as an outsize television personality before his 2016 run for president.
As Mr. Trump built his real-estate business, Ms. Trump was his behind-the-scenes partner and among his closest confidantes. She chose the pink marble and gleaming brass of Trump Tower on Fifth Avenue and advised him on his decision to go into the casino business in Atlantic City, N.J.
She took particular pride in raising the couple’s children, Donald Jr., Ivanka and Eric, writing in her book “Raising Trump” that “the credit for raising such great kids belongs to me.”
Ms. Trump’s death led the office of New York’s attorney general, Letitia James, to say on Friday that it was postponing a deposition of the former president scheduled for next week as part of a civil investigation into whether he and his company had fraudulently inflated the value of his assets. Similar interviews scheduled with Ivanka Trump and Donald Trump Jr. would also be postponed, a spokeswoman for Ms. James said.
William K. Rashbaum contributed reporting.
