The current Holland manager was rushed to the hospital after he suffered heart problems on Sunday, May 3, SunSport reports.
Koeman was immediately operated upon as he underwent cardiac catheterisation moments after he was rushed down via an ambulance.
Holland outlet Telegraaf claimed that the development was confirmed through the wife of the former Barcelona star, Bartina.
It was gathered that the ex-Southampton boss had a stent (a tube that keeps the blood vessel open) placed in the vein as his coronary artery was blocked.
Doctors who are attending to the case have reportedly confirmed his stability as they say he was rushed to the hospital on time.
There has been no suggestion his heart problem was coronavirus related.
Koeman was preparing his Holland side for Euro 2020 this summer before the coronavirus crisis forced the tournament to be postponed a year.
As a player, Koeman featured for Barcelona between 1989 and 1995 where he appeared in 192 games scoring 67 goals.
He returned to the Camp Nou in 1998 to work as the assistant coach before he left in year 2000. Fans of the club recently named him among the top 20 player ever to have played for the Catalan giants.
