O29: ICD10 Code for Complications of anesthesia during pregnancy
O29 is the ICD10 code used for documenting Complications of anesthesia during pregnancy in obstetric care, prenatal diagnostics, and maternal-fetal health.

O29 refers to Complications of anesthesia during pregnancy, a range of pregnancy-specific complications including early bleeding, hyperemesis, venous issues, infections, diabetes, malnutrition, abnormal screenings, and anesthesia-related risks during gestation.
Symptoms
- Vaginal bleeding – Seen with hemorrhage in early pregnancy (O20)
- Severe nausea and vomiting – Key feature of excessive vomiting (hyperemesis gravidarum, O21)
- Swelling, varicose veins, or hemorrhoids – Common venous complications (O22)
- Urinary symptoms or fever – Suggestive of genitourinary infections (O23)
- Elevated blood glucose – Characteristic of gestational diabetes (O24)
Diagnosis
Diagnosis of Complications of anesthesia during pregnancy involves clinical evaluation, laboratory testing (CBC, glucose levels, urine analysis), ultrasound imaging, antenatal screenings (like serum markers, anomaly scans), and monitoring of maternal and fetal well-being through prenatal visits.
ICD10 Code Usage
ICD10 code O29 is widely used by obstetricians, midwives, maternal-fetal medicine specialists, and anesthesiologists to monitor and manage diverse maternal conditions affecting pregnancy health and outcomes.
Related Codes
- O20 – Hemorrhage in early pregnancy
- O21 – Excessive vomiting in pregnancy
- O22 – Venous complications and hemorrhoids in pregnancy
- O23 – Infections of genitourinary tract in pregnancy
- O24 – Diabetes mellitus in pregnancy, childbirth, and the puerperium
- O25 – Malnutrition in pregnancy, childbirth and the puerperium
- O26 – Maternal care for other conditions predominantly related to pregnancy
- O28 – Abnormal findings on antenatal screening of mother
FAQs
Q1: What is ICD10 code O29?
A: It refers to Complications of anesthesia during pregnancy, documenting complications such as hemorrhage, excessive vomiting, venous disorders, infections, diabetes, and abnormal prenatal findings during pregnancy.
Q2: What causes hemorrhage in early pregnancy (O20)?
A: Common causes include implantation bleeding, subchorionic hematoma, miscarriage, or ectopic pregnancy.
Q3: How serious is hyperemesis gravidarum (O21)?
A: Severe cases can cause dehydration, electrolyte imbalances, weight loss, and hospitalization if not properly managed.
Q4: How are abnormal antenatal findings (O28) handled?
A: They trigger follow-up testing, such as amniocentesis, detailed ultrasounds, or genetic counseling, to evaluate fetal health.
Q5: What anesthesia complications (O29) can occur during pregnancy?
A: Risks include aspiration pneumonia, hypotension, allergic reactions, and adverse effects on maternal or fetal well-being during procedures requiring anesthesia.
Conclusion
ICD10 code O29 helps document and manage Complications of anesthesia during pregnancy systematically, ensuring early detection, intervention, and optimized maternal-fetal health throughout pregnancy and childbirth.

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