He is expected to miss four to eight weeks but there is optimism he can return on the shorter end of that timeline, Harris' agent, Mark Bartelstein of Priority Sports, told ESPN's Adrian Wojnarowski.
Nets head coach Steve Nash said Harris' surgery will address "a little bone particle" in the ankle and hopefully allow the shooter to move forward from the injury. Harris has missed the past six games since injuring the ankle in a win at Oklahoma City on Nov. 14.
"He is going to have a scope and then we'll see what that means once they've had the procedure," Nash said after Nets practice on Monday. "We think this is a really positive thing that can put this situation behind him long term rather than risking reoccurrences or uncertainty with the injury."
Harris is averaging 11.3 points and shooting 46.6% from behind the 3-point arc this season.
"There's a little bone particle in there," Nash said. "Just the uncertainty of it, just better to take it out. We thought that it would potentially sort itself out because it's been there, but it's not. Hopefully that's the end of it."