The degree
of fibrosis, or scarring is measured on a scale
of 0 through 4; with stage 4 signaling cirrhosis. This staging system tells us how much scarring has already occurred.
There is also a similar measurement that quantifies the current activity of inflammation; scored A0 through A3, I believe.
So, for instance, my last biopsy showed grade 3 activity, stage 3-4; significant fibrosis/scarring.