De Bruyne was helped off the field in tears after colliding with Antonio Rudiger on the hour mark in Porto.
The midfielder’s left eye immediately appeared swollen.
Without his creativity, Chelsea comfortably held out for a 1-0 win to keep City waiting for Champions League glory.
“Just got back from the hospital,” De Bruyne posted on his Twitter account on Sunday.
“My diagnosis is acute nose bone fracture and left orbital fracture. I feel okay now. Still disappointed about yesterday obviously but we will be back.”
Hi guys just got back from the hospital. My diagnosis is Acute nose bone fracture and left orbital fracture. I feel okay now. Still disappointed about yesterday obviously but we will be back
— Kevin De Bruyne (@DeBruyneKev) May 30, 2021
Belgium’s first match of the Euro is in 11 days’ time against Russia in Saint Petersburg.
Roberto Martinez’s team then face Denmark and Finland in what should be a comfortable group for the number one ranked side in the world.