After a car accident, an innocent accident victim needs care and treatment to recover from their accident related injuries.
Treatment like physiotherapy, massage, chiropractic care and seeing a psychologist are not free. These items are not covered by OHIP for accident victims. If you want any of this sort of treatment, you will either need to pay out for it out of your own pocket, have an insurer agree to pay for it; or work out some deal with the provider that they provide care now; and that someone (you or an insurer) pays for it later. If the insurer doesn’t agree to pay under this last model, you are the one who will end up paying for it personally.
This is when the OCF-18 Treatment Plan comes in to play. This is essentially a permission slip; whereby the service provider puts forth a plan to provide treatment to an injured accident victim at a set rate. The insurer will either approve (or partially approve) for the treatment. Or they will deny it.