‘Code Grey’ service outage at UHN Toronto hospitals resolved

The University Health Network (UHN) says an unexpected Code Grey service outage at several Toronto hospitals has been resolved.

The outage at Canada’s largest research hospital was reported just before 7:30 a.m. on Wednesday and impacted UHN’s website, patient portal, and patient record systems. Some appointments and procedures at Toronto General, Toronto Western, Princess Margaret Cancer Centre, and Toronto Rehab had to be cancelled.

UHN officials said the network outage was not caused by a cyber event, and Ontario Health Minister Sylvia Jones added it was weather-related.

“The weather last night and [Wednesday], the wind in particular, has made it challenging in terms of an outage that is impacting [the] UHN,” said Jones during an unrelated news conference Wednesday morning.

Just before 1 p.m. UHN said its systems were back online.

“You may experience appointment delays for the remainder of the day as backlogs are cleared,” UHN said in an X post.

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