When does Chicago Med return?

Chicago Med follows the emergency department (ED) doctors and nurses of the fictional Gaffney Chicago Medical Center. It sometimes crosses over with characters from Chicago Fire and Chicago P.D. The series premiered on NBC on November 17, 2015. NBC renewed the series for a sixth, seventh, and eighth season.
Chicago Med is the third series in Dick Wolf's Chicago franchise. It focuses on the emergency department at Gaffney Chicago Medical Center. It sometimes crosses over with characters from Chicago Fire and Chicago P.D.