| Change | Score |
| No fibrosis | 0 |
| Fibrous expansion of some portal areas, with or without short fibrous septa | 1 |
| Fibrous expansion of most portal areas, with or without short fibrous septa | 2 |
| Fibrous expansion of most portal areas, with occasional portal to portal bridging | 3 |
| Fibrous expansion of portal areas with marked bridging (portal to portal) as well as portal to central | 4 |
| Marked bridging (portal to portal and/or portal to central) with occasional nodules (incomplete cirrhosis) | 5 |
| Cirrhosis, probable or definite | 6 |
