Justice Minister Antonis Roupakiotis was recovering in the hospital on Tuesday after undergoing a successful operation to remove a blood clot.
Roupakiotis was taken to the hospital on Monday after complaining of a migraine.
He was moved from an intensive-care unit to the neurosurgical department at the Attikon Hospital on Tuesday.
Health Minister Andreas Lykourentzos visited him and said his colleague was in ?excellent? condition.
It is not known when or if Roupakiotis will resume his duties.