. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: Clin Gastroenterol Hepatol. 2015 Jul 15;13(13):2333–2341.e6. doi: 10.1016/j.cgh.2015.07.010

Table 1.

Operational Definition of Clinical CTP Subscores

	Score 3	Score 2	Score 1
Ascites	Severe complication of ascites, specifically SBP or HRS,^a OR more than 1 LVP,^a OR prior CPT code for TIPS	One LVP^a; OR 1 ICD9-CM for ascites (inpatient or outpatient); OR prescription fills^b for spironolactone or amiloride	Absence of criteria for Score 2 or 3
Encephalopathy	More than 1 hospitalization for HE^a	At least one ICD9-CM for encephalopathy (inpatient or outpatient) not meeting criteria for Score 3; OR prescription fills^b for lactulose or rifaximin	Absence of criteria for Score 2 or 3

HRS, hepatorenal syndrome; LVP, large volume paracentesis; SBP, spontaneous bacterial peritonitis.

In the preceding 6 months or 1 month after index date.

Three 1-month or one 3-month fill in the preceding 3 months OR 1 fill in the month after the index date.