This classification of splenic trauma considered the anatomical lesions:
| I | Subcapsular hematoma | Subcapsular, < 10% surface area |
| Parenchymal hematoma | – | |
| Laceration | Capsular tear, < 1 cm parenchymal depth | |
| Vascular lesion | – | |
| II | Subcapsular hematoma | 10–50% surface area |
| Parenchymal hematoma | <5cm in diameter | |
| Laceration | 1–3 cm parenchymal depth not involving a parenchymal vessel | |
| Vascular lesion | – | |
| III | Subcapsular hematoma | > 50% surface area or expanding |
| Parenchymal hematoma | Intraparenchymal hematoma > 5 cm or ruptured subcapsular | |
| Laceration | > 3 cm parenchymal depth | |
| Vascular lesion | involving trabecular vessels | |
| IV | Subcapsular hematoma | – |
| Parenchymal hematoma | – | |
| Laceration | Laceration (> 25% of spleen) | |
| Vascular lesion | segmental or hilar vessels producing major devascularization | |
| V | Subcapsular hematoma | – |
| Parenchymal hematoma | – | |
| Laceration | Completely shatters spleen | |
| Vascular lesion | Hilar vascular injury which devascularized spleen |