Labor and delivery complicated by vasa previa, fetus 3

This code signifies a complication during labor and delivery where fetal blood vessels within the amniotic membranes cross the internal cervical os, lying below the presenting part of the fetus. These unprotected vessels are vulnerable to rupture, leading to severe fetal hemorrhage and potential demise. This specific code identifies the third fetus in a multiple gestation pregnancy affected by vasa previa.

Apply this code when documentation clearly states vasa previa as a complication during labor and delivery for the third fetus. This diagnosis is typically made antenatally via ultrasound or confirmed during labor when bleeding occurs upon membrane rupture. Documentation should specify "fetus 3" or similar identification.

• Ensure the documentation explicitly identifies "fetus 3" to differentiate from other fetuses in a multiple gestation.
• Sequence this code as a secondary diagnosis following the primary obstetric code for the delivery.
• Do not confuse with placenta previa (O44.-) where the placenta itself covers the cervical os.