| Grade | Definition |
| 0 | Neither sensitive neuropathy nor arteritis |
| 1 | Absence isolated from monofilament perception |
| 2 | No perception of associated monofilament: - has arterial disease of the lower limbs and or - has a foot malformation |
| 3 | Antecedent - dulcation of the foot evolving more than 4 weeks and or - d’amputation |