The classification systems commonly referred upon is proposed by the Quebec task force.

Grade                   Clinical presentation

0                         No complaint about the neck No physical signs

I                          Neck complaint of pain, stiffness or tenderness only 
No physical signs

II                         Neck complaint, and 
Musculoskeletal signs

III                        Neck complaint, and 
Neurological signs

IV                        Neck complaint, and Fracture dislocation