The Cook County Medical Examiner's Office did not say anything about whether the acclaimed chef's death was related to what friends and co-workers described as Trotter's declining health in recent years, or the seizure that one said he was hospitalized for over the summer.
In a short news release, the office said that "additional tests, including a toxicology analysis will be conducted." Those tests include a toxicology analysis and could take as long as eight weeks.
The 54-year-old Trotter died Tuesday at a Chicago hospital after paramedics found him unresponsive at his home.
For decades, Trotter's name was synonymous with cutting-edge cuisine. He earned 10 James Beard Awards, wrote 10 cookbooks and in 1999 hosted his own public television series, The Kitchen Sessions with Charlie Trotter.
Trotter's wife, Rochelle, said in a statement that his "impact upon American cuisine and the culinary world at large will always be remembered."