O46.023 Antepartum hemorrhage with disseminated intravascular coagulation, third trimester

Name of the Condition

• Antepartum Hemorrhage with Disseminated Intravascular Coagulation, Third Trimester
• O46.023

Summary

Antepartum hemorrhage refers to bleeding from the genital tract during pregnancy, typically after 20 weeks of gestation. When associated with disseminated intravascular coagulation (DIC), the condition involves abnormal blood clotting throughout the body’s small blood vessels, which can exacerbate bleeding and complicate management. This code specifically applies to cases occurring in the third trimester.

Causes

The causes of antepartum hemorrhage in the third trimester may include placental abruption, placenta previa, or uterine rupture. DIC is often triggered by severe obstetric complications, such as placental abruption, sepsis, or trauma, which lead to systemic inflammation and disrupt normal clotting mechanisms.

Risk Factors

• Placental abruption or previa
• Severe preeclampsia or eclampsia
• Multiple pregnancies
• History of antepartum hemorrhage
• Trauma or abdominal injury
• Preexisting clotting disorders

Symptoms

• Vaginal bleeding (ranging from spotting to heavy flow)
• Abdominal pain or uterine tenderness
• Signs of DIC, such as bruising, prolonged bleeding from minor injuries, or petechiae
• Rapid heart rate, low blood pressure, or signs of shock in severe cases

Diagnosis

Diagnosis involves assessing the bleeding pattern and evaluating coagulation status. Key steps include: Ultrasound to identify placental or uterine abnormalities. Blood tests (e.g., complete blood count, coagulation panel) to detect DIC. Monitoring fetal heart rate and maternal vital signs.

Treatment Options

• Stabilization of the mother’s condition with intravenous fluids and blood products
• Addressing the underlying cause (e.g., delivery for placental abruption)
• Management of DIC with medications to support clotting or reduce inflammation
• Close monitoring of both mother and fetus

Prognosis and Follow-Up

Prognosis depends on the severity of bleeding and DIC, as well as timely intervention. Follow-up care includes monitoring for recurrent bleeding, assessing coagulation status, and evaluating fetal well-being. Long-term outcomes may involve managing complications related to blood loss or organ damage.

Complications

• Severe maternal hemorrhage or shock
• Fetal distress or loss
• Organ damage from prolonged hypoperfusion
• Recurrent coagulation abnormalities

Lifestyle & Prevention

• Regular prenatal care to monitor for high-risk conditions
• Avoiding trauma or activities that increase abdominal pressure
• Managing preexisting conditions (e.g., hypertension) to reduce complication risk
• Prompt reporting of any bleeding or abdominal pain

When to Seek Professional Help

Seek immediate medical attention for:

• Heavy vaginal bleeding
• Severe abdominal pain
• Signs of shock (e.g., dizziness, rapid heartbeat)
• Unusual bruising or prolonged bleeding

Tips for Medical Coders

Document the trimester (third trimester) and presence of DIC to support code assignment. Ensure clinical notes specify the relationship between antepartum hemorrhage and DIC, as this is critical for accurate coding.