Team spokesman Burt Lauten said Roethlisberger underwent the procedure at Cedars-Sinai Kerlan Jobe Orthopedic Clinic in Los Angeles. The surgery was performed by Dr. Neal ElAttrache in consultation with team physician Dr. Jim Bradley.
The 37-year-old Roethlisberger left at halftime of a 28-26 loss to Seattle on Sept. 15 after complaining of elbow pain. The team placed him on season-ending injured reserve the following day but has not detailed the exact nature of Roethlisberger's injury.
Roethlisberger will begin rehabilitation when he returns to Pittsburgh and plans to return to the field in 2020. The two-time Super Bowl winner signed a contract extension in the spring that runs through the 2021 season.
The Steelers, with Mason Rudolph taking over at quarterback, dropped to 0-3 with a loss to San Francisco on Sunday.