ICD-10-CM > O00-O9A > O20-O29 > O26 > O26.6 > O26.64 O26.64 Intrahepatic cholestasis of pregnancy Non-Billable/Non-Specific Use Additional code for hepatic obstruction (K76.89) Codes O26.641Intrahepatic cholestasis of pregnancy, first trimesterO26.642Intrahepatic cholestasis of pregnancy, second trimesterO26.643Intrahepatic cholestasis of pregnancy, third trimesterO26.649Intrahepatic cholestasis of pregnancy, unspecified trimester