Korkmaz, who has been a consistent member of Sixers' roster, sustained a major knee injury during a match against Boston on February 12.
"Furkan Korkmaz sustained an injury to his right knee during the team's Feb. 12 matchup vs. Boston. He underwent imaging, and an MRI revealed a meniscus tear," NBA said on website.
It is stated that his treatment options and knee surgery are now being assessed.
This season Korkmaz, 21, averaged 5.8 points, 2.3 rebounds and 1.1 assists per game, shooting 33 percent from the 3-point line.
In the 2016 NBA Draft he was picked by 76ers in the first round.
Before his two-and-a-half year spell in NBA, Turkish born Korkmaz had played for Istanbul basketball giants Anadolu Efes.
The Eastern Conference team will also be without the services of All-Star center Joel Embiid at least for a week.
