The 83-year-old TV veteran fell and cut her forehead while visiting the British Ambassador's residence Saturday night.
ABC News released a statement, saying, "Barbara Walters fell on a stair last evening while visiting the British Ambassador's residence and the fall left her with a cut on her forehead. Out of an abundance of caution, she went to the hospital to have her cut tended to, have a full examination and remains there for observation. Barbara is alert (and telling everyone what to do), which we all take as a very positive sign."
Walters was scheduled to contribute to the network's coverage of the inauguration events.