Use of Diagnostic Code 850 for concussions

To: All Physicians, Registered Nurse with Extended Class (RN(EC))
Category: Physician Services, Registered Nurse with Extended Class (RN(EC))
Written by: Provider Services Branch; OHIP, Pharmaceuticals and Devices Division
Date issued: September 27, 2022


On March 7, 2018, new legislation called Rowan’s Law (Concussion Safety), 2018 (“Rowan’s Law”), was enacted, setting out a framework for concussion prevention, detection, and management within amateur competitive sport.

Concussion management can be complex and often necessitates a multidisciplinary approach, with regular follow-up through the continuum of care, starting from diagnosis, through treatment and management, to clearance.

To support the Rowan’s Law initiative, physicians should use the diagnostic code for concussion (850) when submitting claims to OHIP for services provided relating to concussion assessment and management.

Additional information

Additional information for health care providers regarding Rowan’s Law can be found on the Government of Ontario website.


Rowan’s Law; Concussion; Concussion Safety; Diagnostic Code; 850

Contact information

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