The 24-year-old, who suffered a broken neck in March 2017 but made a rapid return to competition in November, crashed after landing short off the final slopestyle jump and he was removed from the course in a neck brace.
"It was clear early on that Mans had suffered a concussion. It's an injury we take very seriously and that we handle with the utmost care," Swedish team doctor Jakob Swanberg said in a statement, adding that Hedberg had undergone further tests.
"The tests have not given me the result I hoped for, which means that Mans cannot get medical clearance to start the competition," Swanberg said.
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The Big Air qualifying runs begin on Wednesday, with the finals due to take place at the Phoenix Extreme Park on Saturday February 24.
(Reporting by Philip O'Connor; Editing by Amlan Chakraborty)
