Mutilating hand injuries may be classified by this scheme of Orientation, Wound type and Zone of injury:
| Orientation | Wound Subtype | |||
| I | Dorsal | A | Soft Tissue Loss | |
| II | Palmar | B | Bony Loss | |
| III | Ulnar | C | Combined Tissue Loss | |
| IV | Radial | 1 | Vascularized | |
| V | Transverse | 2 | Devascularized | |
| VI | Degloving | |||
| VII | Combined | |||
Zone of Injury
| Zone | Radial | Central | Ulnar |
| Distal | I Thumb P1, P2 |
II Index, Middle P1, P2, P3 |
III Ring, Small P1, P2, P3 |
| Central | IV Thumb Metacarpal |
V Index, Middle Metacarpal |
VI Ring, Small Metacarpal |
| Proximal | VII Scaphoid, Trapezium, Trapezoid |
VIII Capitate, Lunate |
IX Hamate, Triquetrum, Pisiform |