Intrahepatic cholestasis of pregnancy, first trimester

This code signifies a liver disorder specific to pregnancy, characterized by impaired bile flow within the liver during the first trimester. It results in the accumulation of bile acids in the bloodstream, leading to symptoms such as intense itching.

Apply this code when a pregnant patient in her first trimester is diagnosed with intrahepatic cholestasis, confirmed by elevated bile acid levels and characteristic pruritus. Documentation should clearly state the diagnosis and the gestational age at the time of diagnosis.

• Ensure the documentation explicitly states "first trimester" for accurate code assignment.
• Distinguish from other pruritic conditions of pregnancy, such as polymorphic eruption of pregnancy, which do not involve liver dysfunction.
• Always sequence this code as a secondary diagnosis following the code for the current pregnancy status (e.g., O09.-).