PEDIS score = perfusion + extent + depth + infection + sensation.

Domain	Category	Points
Perfusion	No peripheral arterial disease	0
Perfusion	Peripheral arterial disease without critical limb ischaemia	1
Perfusion	Critical limb ischaemia	2
Extent	Skin intact	0
Extent	<1 cm²	1
Extent	1–3 cm²	2
Extent	>3 cm²	3
Depth	Skin intact	0
Depth	Superficial ulcer	1
Depth	Fascia, muscle or tendon involved	2
Depth	Bone or joint involved	3
Infection	None	0
Infection	Surface infection	1
Infection	Abscess, fasciitis or septic arthritis	2
Infection	Systemic inflammatory response syndrome	3
Sensation	Protective sensation intact	0
Sensation	Loss of protective sensation	1

Total score range: 0–12. Scores 0–6 form the lower-risk band. Scores 7–12 form the higher-risk band for non-healing, amputation or death over about 6 months.

PEDIS Score for Diabetic Foot Ulcers