Name of the Condition

• Unspecified Maternal Hypertension, Third Trimester (ICD-10 Code: O16.3)

Summary

• Unspecified maternal hypertension refers to high blood pressure diagnosed during pregnancy's third trimester, without a specific type identified. It requires careful monitoring to ensure the health of both mother and baby.

Causes

• The exact cause of maternal hypertension can vary, but it may be related to pre-existing hypertension, pregnancy-related changes in the body, or other unknown factors.

Risk Factors

• Risk factors include obesity, a history of hypertension, multiple pregnancies, advanced maternal age, and a history of gestational hypertension in previous pregnancies.

Symptoms

• Patients might experience elevated blood pressure readings, headaches, visual disturbances, swelling in the hands or face, and sudden weight gain.

Diagnosis

• Diagnosis is usually made through regular blood pressure measurements and may include urine tests to check for protein, blood tests, and fetal monitoring to assess baby's health.

Treatment Options

• Treatment may involve lifestyle changes like diet and exercise improvements, antihypertensive medications that are safe for pregnancy, and increased monitoring of blood pressure.

Prognosis and Follow-Up

• With proper management, the prognosis can be good, but regular prenatal visits are crucial to monitor and adjust treatment as needed for mother and baby's safety.

Complications

• If left untreated, maternal hypertension can lead to complications such as preeclampsia, premature birth, placental abruption, and increased risk during delivery.

Lifestyle & Prevention

• Maintaining a healthy weight, regular exercise, following a balanced diet low in salt, and stress management may help prevent or manage the condition.

When to Seek Professional Help

• Seek immediate medical attention if experiencing severe headaches, vision changes, severe abdominal pain, or significant swelling.

Additional Resources

• American College of Obstetricians and Gynecologists (ACOG)
• National Institutes of Health (NIH)
• March of Dimes

Tips for Medical Coders

• Ensure that the hypertension is unspecified and occurring in the third trimester before assigning code O16.3.
• Avoid misclassification by verifying trimester specification in the medical records.