Alcohol use complicating pregnancy, first trimester

This code signifies the presence of alcohol use disorder or problematic alcohol consumption occurring during a patient's first trimester of pregnancy. It indicates that the alcohol use is considered a complication impacting the pregnancy itself. This diagnosis highlights the potential risks and adverse outcomes associated with alcohol exposure during early fetal development.

Apply this code when documentation clearly states a diagnosis of alcohol use, abuse, or dependence in a pregnant patient during her first trimester. This includes situations where the patient self-reports alcohol consumption, or when clinical assessment (e.g., AUDIT-C, CAGE questionnaire) or laboratory findings (e.g., elevated liver enzymes, CDT) confirm alcohol use. Documentation should explicitly link the alcohol use as a complicating factor to the pregnancy.

• Always sequence this code after the primary obstetric code (e.g., O09.- for supervision of normal pregnancy).
• Do not use this code for a history of alcohol use if it is not currently complicating the pregnancy.
• Ensure the documentation specifies "first trimester" to accurately assign this trimester-specific code.