O88.113 Amniotic fluid embolism in pregnancy, third trimester

Name of the Condition

• Amniotic fluid embolism in pregnancy, third trimester

Summary

Amniotic fluid embolism in pregnancy, third trimester, is a rare but severe obstetric complication where amniotic fluid, fetal cells, or debris enter the maternal circulation during the third trimester of pregnancy. It can cause rapid cardiovascular collapse, respiratory distress, and coagulopathy, requiring immediate medical intervention.

Causes

Amniotic fluid embolism typically occurs when amniotic fluid or fetal material enters the maternal bloodstream, often during labor, delivery, or cesarean section. It may result from uterine trauma, placental abnormalities, or procedures that disrupt the uterine environment.

Risk Factors

• Prolonged labor or cesarean delivery.
• Placental abruption or previa.
• Uterine rupture or trauma.
• Advanced maternal age.
• Multiparity or multiple gestation.
• Use of uterine stimulants (e.g., oxytocin).

Symptoms

• Sudden onset of dyspnea, chest pain, or respiratory failure.
• Hypotension, tachycardia, or cardiovascular collapse.
• Seizures, confusion, or loss of consciousness.
• Profuse bleeding or coagulopathy.
• Cyanosis or altered mental status.

Diagnosis

Diagnosis is based on clinical suspicion, especially in the context of obstetric events, and supported by imaging (e.g., echocardiography) or laboratory findings (e.g., coagulation abnormalities). A high index of suspicion is critical due to the condition’s rapid progression.

Treatment Options

Treatment focuses on stabilizing the patient, managing respiratory and cardiovascular collapse, and addressing coagulopathy. Interventions may include oxygen therapy, vasopressors, blood transfusions, and supportive care in an intensive care setting.

Prognosis and Follow-Up

Prognosis depends on the severity of the event and timely intervention. Survivors may require ongoing monitoring for complications such as organ damage or long-term neurological effects. Follow-up care should address physical and emotional recovery.

Complications

• Cardiovascular collapse or shock.
• Respiratory failure or acute respiratory distress syndrome (ARDS).
• Disseminated intravascular coagulation (DIC) or severe bleeding.
• Neurological damage (e.g., seizures, coma).
• Maternal or fetal mortality.

Lifestyle & Prevention

While prevention is challenging due to the unpredictable nature of the condition, managing risk factors (e.g., avoiding unnecessary uterine trauma) and ensuring prompt obstetric care may reduce incidence. No specific lifestyle measures are proven to prevent amniotic fluid embolism.

When to Seek Professional Help

Seek immediate medical attention if symptoms such as sudden shortness of breath, chest pain, severe bleeding, or altered mental status occur during pregnancy, labor, or delivery.

Tips for Medical Coders

Code O88.113 is specific to amniotic fluid embolism occurring in the third trimester of pregnancy. Documentation should clearly indicate the trimester and clinical presentation to support accurate coding. Ensure alignment with obstetric event details and associated complications.