The ABC News veteran fell on a step and cut her forehead while at the home of Peter Westmacott, Britain's ambassador to the United States, on Saturday night.
As a precaution, the 83-year-old was hospitalized and received treatment and a full examination, ABC News spokesman Jeffrey Schneider said. Schneider also added that Walters was alert "and telling everyone what to do," which he considered "a very positive sign."
It was unclear when Walters would be released from the hospital.
Walters has spent more than three decades at ABC. She broke ground in 1976 when she became the first female anchor of a network news program.
Over the years, her exclusive interviews with world rulers, politicians and entertainers have brought her celebrity status.
In May 2010, Walters underwent heart surgery but returned to work a few months later.
Her busy schedule includes appearances on "The View," the hit weekday talk show she created in 1997. She also continues to host prime time specials and interviews.
The Associated Press contributed to this report.