The NBA announced the move Thursday.
Booker, the 19-year-old former Kentucky guard drafted 13th overall last year, is averaging 10.6 points and shooting 40.3 percent from 3-point range in 48 games. In 23 starts, he's averaging 15.2 points and had a season-high 32 points against Indiana on Jan. 19.
Booker also will compete in the Three-Point Contest on Saturday.
Noel has tendinitis in his right knee.