A Thunder spokesman made the announcement Thursday.
Noel was injured Jan. 8 when he collided with Minnesota's Andrew Wiggins and his head hit the floor. The team said Noel lost consciousness while being knocked to the floor. He was down for several minutes before being taken from the court on a stretcher and was held overnight at the University of Oklahoma's hospital for tests and observations before being released the next day.
A critical reserve for the Thunder this season, Noel is averaging 5.1 points, 4.6 rebounds and 1.4 blocks in 13.7 minutes per game. The Thunder have lost two of three without him.