 - has 1 of the following characteristics: erythema 2cm, or involving structures deeper than skin and subcutaneous tissues e.g. abscess, osteomyelitis, septic arthritis, fasciitis For patients with multiple infected ulcers, the ulcer with the highest Diabetic Foot Infection Wound score DFI score must be on or below the malleolus and all infected ulcers must be completely coverable using no more than 4 sponges sponges cannot be cut. 