Child-Pugh score is used to assess chronic liver disease like cirrhosis. It employs five clinical features of liver disease with scores from 1 to 3.

Points:	1	2	3
S. Bilirubin	below 2	2-3	above 3
S. Albumin	above 3.5	2.8-3.5	below 2.8
PT / INR	below 1.7	1.7-2.3	above 2.3
Ascitis	None	mild	mod to sev
H. Encephalopathy	None	gr 1-2	gr 3-4

For primary sclerosing cholangitis (PSC) and primary biliary cirrhosis (PBC), the bilirubin 1 point corresponds to below 4 mg/dl and 2 points corresponds to 4-10 mg/dl.
For prognosis CLD is classified into Child-Pugh class A to C as below:

Points	Class	1yr survival	2yr survival
5-6	A	100%	85%
7-9	B	81%	57%
10-15	C	45%	35%