Dysmorphism due to warfarin

This code describes a constellation of congenital anomalies, often referred to as warfarin embryopathy or fetal warfarin syndrome, resulting from in utero exposure to warfarin. These anomalies typically include nasal hypoplasia, stippled epiphyses, skeletal abnormalities, and central nervous system defects. The dysmorphism is a direct consequence of the teratogenic effects of warfarin on the developing fetus.

Use this code when a newborn or child presents with characteristic physical malformations directly attributed to maternal warfarin use during pregnancy. Documentation should clearly link the dysmorphic features to prenatal warfarin exposure, often confirmed by maternal medication history. This code is appropriate for reporting the long-term sequelae of fetal warfarin syndrome.

• Ensure documentation explicitly states the link between the dysmorphism and maternal warfarin exposure.
• Do not confuse with other congenital anomalies of the nose or skeletal system unless warfarin exposure is the confirmed etiology.
• Sequence this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis when managing other conditions related to the syndrome.