O46: ICD10 Code for Antepartum hemorrhage, not elsewhere classified

O46 refers to Antepartum hemorrhage, not elsewhere classified, covering a wide range of conditions involving multiple gestation pregnancies, fetal positioning issues, amniotic fluid disorders, placental problems, premature rupture of membranes, and complications in late pregnancy.

Symptoms

• Preterm labor symptoms – Especially in multiple gestation (O30–O31)
• Abnormal fetal positioning – Breech, transverse lie (O32)
• Excessive amniotic fluid – Seen in polyhydramnios (O40)
• Vaginal bleeding – Placenta previa (O44) and abruptio placentae (O45)
• Leakage of amniotic fluid – Indicative of premature rupture of membranes (O42)

Diagnosis

Diagnosis of Antepartum hemorrhage, not elsewhere classified involves detailed prenatal ultrasound evaluations, amniotic fluid measurements, fetal monitoring (biophysical profile, non-stress test), cervical exams, and lab investigations when necessary to detect and manage fetal or placental complications.

ICD10 Code Usage

ICD10 code O46 is crucial for obstetricians, maternal-fetal medicine specialists, and labor and delivery teams to track, monitor, and intervene early in complex pregnancies, ensuring maternal and neonatal safety.

Related Codes

• O30 – Multiple gestation
• O31 – Complications specific to multiple gestation
• O32 – Maternal care for malpresentation of fetus
• O33 – Maternal care for disproportion
• O34 – Maternal care for abnormality of pelvic organs
• O35 – Maternal care for known or suspected fetal abnormality and damage
• O36 – Maternal care for other fetal problems
• O40 – Polyhydramnios
• O41 – Other disorders of amniotic fluid and membranes
• O42 – Premature rupture of membranes
• O43 – Placental disorders
• O44 – Placenta previa
• O45 – Premature separation of placenta [abruptio placentae]
• O47 – False labor
• O48 – Late pregnancy

FAQs

Q1: What is ICD10 code O46?
A: It refers to Antepartum hemorrhage, not elsewhere classified, capturing various fetal, placental, amniotic fluid, and gestational complications during mid to late pregnancy.

Q2: What is placenta previa (O44)?
A: A condition where the placenta partially or completely covers the cervix, increasing the risk of bleeding and necessitating cesarean delivery.

Q3: What causes premature rupture of membranes (O42)?
A: Causes include infections, cervical insufficiency, trauma, or unexplained spontaneous rupture.

Q4: How is fetal malpresentation (O32) handled?
A: Options include external cephalic version to turn the fetus or planning for cesarean delivery if repositioning fails.

Q5: What risks are associated with multiple gestations (O30–O31)?
A: Increased risks include preterm birth, low birth weight, twin-to-twin transfusion syndrome, and delivery complications.

Conclusion

ICD10 code O46 ensures precise documentation and management of Antepartum hemorrhage, not elsewhere classified, enabling high-quality, proactive obstetric care for complex pregnancies and optimizing maternal-fetal outcomes.