Yes, Crohn’s disease is considered a pre-existing condition and should be declared during the medical screening process.
Our medical warranty defines a pre-existing condition as anything where you have been:
to a hospital, clinic, or GP surgery for medical treatment within the last two years. This also applies to remote consultations, either on the phone or through an app.
placed on a waiting list, which might mean you’ll have to miss your trip.
told you have a terminal illness.