Name of the Condition

• Pre-existing essential hypertension complicating pregnancy, third trimester (ICD Code: O10.013)

Summary

• This condition refers to high blood pressure that existed before pregnancy and poses additional risks as a woman enters her third trimester. It requires careful monitoring and management to ensure the health and safety of both mother and baby.

Causes

• Essential hypertension refers to high blood pressure with no identifiable cause. It may be influenced by genetic factors, lifestyle choices such as diet and physical inactivity, and other health conditions.

Risk Factors

• Advanced maternal age, obesity, pre-existing hypertension, family history of hypertension, and being African American can increase the risk of developing complications during pregnancy.

Symptoms

• High blood pressure, headaches, blurred vision, or swelling in hands and feet. Some patients may be asymptomatic, making regular monitoring essential.

Diagnosis

• Blood pressure measurement is critical. Regular antenatal check-ups typically involve blood pressure checks and may include urine tests for protein, which indicate kidney involvement.

Treatment Options

• Management involves medication to control blood pressure, such as labetalol or nifedipine, and lifestyle modifications like dietary adjustments and stress management. The aim is to minimize risks to both mother and child.

Prognosis and Follow-Up

• With proper management, many women with pre-existing hypertension can have successful pregnancies. Regular prenatal check-ups are crucial to monitor both maternal and fetal health and adjust treatment plans as needed.

Complications

• If untreated, risks include preeclampsia, placental abruption, premature birth, and potential long-term health issues for both mother and child.

Lifestyle & Prevention

• Maintaining a healthy diet, regular exercise, avoiding smoking and excessive alcohol, and stress reduction can help manage blood pressure. Early prenatal care is key to prevention.

When to Seek Professional Help

• Seek immediate medical attention for severe headaches, vision changes, significant swelling, or shortness of breath, as these could indicate serious complications.

Additional Resources

• The American Heart Association (heart.org) and American College of Obstetricians and Gynecologists (acog.org) provide additional information and support resources.

Tips for Medical Coders

• Ensure the patient has a documented history of hypertension before pregnancy to accurately use the O10.013 code.
• Consistently check for accompanying documentation indicating the complication during the third trimester.