Ivana Trump died when she accidentally fell down the stairs of her Manhattan home, authorities said Friday.

The 73-year-old ex-wife of former President Donald Trump suffered “blunt impact injuries” to her torso, the New York City Medical Examiner’s Office said.

Ivana was found at the foot of the stairs in her home early Thursday afternoon.

Her death was officially ruled an “accident” by the ME’s office.

The socialite businesswoman had been suffering hip pain and had such trouble walking that she couldn’t even leave her house for a quick jaunt to the Hamptons, a close friend told The Post on Friday.

She also was so unsteady on her feet at times that she needed a personal health aide to help walk around her neighborhood, other friends said.

This is a developing story, check back for updates