Can a BC Registered Counsellor or Ontario Registered Psychotherapist diagnose mental health disorders or conditions?

No. Generally in Canada, only Medical Doctors, Nurse Practitioners and Registered Psychologists are legally allowed to diagnose mental health disorders or conditions. That being said, BC Registered counsellors or Ontario Registered Psychotherapists are trained with working knowledge of mental health conditions and diagnosis, so they can treat those severe and complex mental health conditions in conjunction with the client’s Medical Doctors and other applicable multi-disciplinary professionals (such as occupational therapists, etc.).