Smoking (tobacco) complicating pregnancy, first trimester

This code signifies a maternal condition where the patient's tobacco smoking habit is adversely affecting a pregnancy during its initial three months. It indicates a direct complication or risk factor attributable to smoking during the first trimester.

Apply this code when documentation explicitly states tobacco smoking as a complicating factor in a pregnancy during the first trimester. This includes conditions like intrauterine growth restriction, placental abnormalities, or other adverse outcomes directly linked to maternal smoking identified early in gestation.

• Always confirm the trimester of pregnancy documented. If the trimester is not specified, query the provider.
• Do not use this code for a history of smoking if it is not currently complicating the pregnancy.
• Sequence this code after the primary obstetric complication if applicable, or as a secondary diagnosis when smoking is a significant co-morbidity.