O60.03 Preterm labor without delivery, third trimester

Name of the Condition

• Preterm Labor Without Delivery, Third Trimester

Summary

Preterm labor without delivery in the third trimester is a condition where a pregnant woman experiences regular uterine contractions and cervical changes between 28 and 36 weeks of gestation, but does not progress to actual birth. It requires prompt evaluation to determine the risk of preterm delivery and guide management.

Causes

The exact causes of preterm labor are often unclear but may include infections, placental abnormalities, or uterine overdistension. Hormonal changes, stress, or physical trauma can also contribute to its onset. In some cases, no specific trigger is identified.

Risk Factors

• Past history of preterm labor or birth
• Multiple gestation (e.g., twins or triplets)
• Uterine or cervical abnormalities
• Chronic health issues such as high blood pressure or diabetes
• Lifestyle factors such as smoking or drug use
• Poor prenatal care

Symptoms

• Regular contractions leading to cervical dilation
• Pelvic pressure
• Backache
• Change in vaginal discharge
• Cramps similar to menstrual cramps

Diagnosis

Diagnosis involves assessing uterine activity, cervical changes, and fetal status. Tools may include fetal monitoring, cervical length measurement via ultrasound, and testing for fetal fibronectin in vaginal secretions. A physical examination may also be performed to evaluate cervical changes.

Treatment Options

• Tocolytics to delay labor (e.g., for 48 hours)
• Corticosteroids to enhance fetal lung maturity
• Antibiotics for infections
• Magnesium sulfate for neuroprotection
• Bed rest or activity restriction

Prognosis and Follow-Up

The prognosis depends on the gestational age, underlying causes, and response to treatment. Close monitoring is essential to assess for progression to preterm birth. Follow-up care may include regular check-ups and additional testing to ensure maternal and fetal well-being.

Complications

• Preterm birth
• Respiratory distress in the newborn
• Long-term developmental issues
• Maternal infection or hemorrhage

Lifestyle & Prevention

• Attend regular prenatal care appointments
• Avoid smoking, alcohol, and illicit drugs
• Manage chronic conditions (e.g., hypertension, diabetes)
• Practice stress-reduction techniques
• Report any unusual symptoms promptly

When to Seek Professional Help

Seek immediate medical attention if you experience regular contractions, pelvic pressure, vaginal bleeding, or fluid leakage. Early intervention can help prevent complications and improve outcomes.

Tips for Medical Coders

Document the gestational age at onset, presence of contractions, cervical changes, and any contributing factors. Ensure the code O60.03 is used when preterm labor occurs in the third trimester without delivery. Include details about diagnostic tests and treatment provided to support accurate coding.