The comedian was driving his McLaren F1 supercar, one of the world's fastest road cars, when he crashed Thursday. His car struck a tree and a lamppost before it caught fire, said authorities.
Britain's Daily Mirror tabloid reported that Atkinson was able to walk away from the vehicle and flag down other motorists for help.
Atkinson was seen leaving Peterborough City Hospital Friday afternoon. Publicists did not disclose details of his injuries.
The accident occurred close to Haddon, a village about 85 miles north of London.
Police said Atkinson was administered a routine breathalyzer test at the scene and will face no criminal charges.
The actor's McLaren has a top speed of 230 mph, though police did not suggest he had been speeding. The cars can cost around $1 million.
The actor, a car enthusiast, appears in a series of motoring mishaps in his "Mr. Bean" series. He is shown in one program driving a Mini while seated on the vehicle's roof. Atkinson is also known for the historical comedy series "Blackadder."
The Associated Press contributed to this report.