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Table 4 Meggit-Wagner ulcer classification system [3]

From: Clinical profiles of diabetic foot ulcer patients undergoing major limb amputation at a tertiary care center in North-eastern Tanzania

Grade Description
0 Pre- or post-ulcerative lesion completely epithelialized
1 Superficial, full-thickness ulcer confined to the dermis, not extending to the subcutaneous tissues
2 Ulcer of the skin extending through the subcutaneous tissues with exposed tendon or bone and without osteomyelitis or abscess formation
3 Deep ulcers with osteomyelitis or abscess formation
4 Localized gangrene of the toes or the forefoot
5 Foot with extensive gangrene