Intrahepatic cholestasis of pregnancy, unspecified trimester

This code signifies a liver condition unique to pregnancy, characterized by impaired bile flow within the liver, leading to an accumulation of bile acids in the bloodstream. It typically presents with intense itching, particularly on the palms and soles, without a rash. This diagnosis indicates that the specific trimester of onset or diagnosis was not documented.

Use this code when documentation confirms intrahepatic cholestasis of pregnancy but does not specify the trimester. This diagnosis is supported by clinical findings of pruritus, elevated serum bile acids, and abnormal liver function tests in a pregnant patient. It is appropriate when the provider has not indicated whether the condition was diagnosed in the first, second, or third trimester.

• Ensure the medical record explicitly states "intrahepatic cholestasis of pregnancy" and lacks trimester specificity.
• Do not use this code if the trimester is documented; instead, select the appropriate trimester-specific code (O26.641, O26.642, O26.643).
• Always sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when it is a co-morbidity affecting the pregnancy.