Blighted ovum and nonhydatidiform mole

This code represents a failed intrauterine pregnancy where a gestational sac develops, but an embryo either never forms or stops developing very early, before a heartbeat can be detected. It is also known as an anembryonic pregnancy. A nonhydatidiform mole refers to a non-cancerous growth or mass in the uterus that is not a true molar pregnancy (hydatidiform mole).

Use this code when ultrasound imaging confirms the presence of a gestational sac without an identifiable embryo or fetal pole, or when a nonhydatidiform mole is diagnosed. Documentation should clearly state "blighted ovum," "anembryonic pregnancy," or "nonhydatidiform mole" based on imaging and clinical findings. This code is appropriate for initial diagnosis and subsequent encounters related to the management of these conditions.

• Differentiate carefully from a spontaneous abortion (O03.-) where an embryo or fetus was present but subsequently miscarried.
• Ensure documentation specifies "nonhydatidiform" to avoid confusion with true molar pregnancies (O01.-).
• Consider additional codes for complications, such as hemorrhage (O04.6) or infection (O04.5), if present.