O91.111 Abscess of breast associated with pregnancy, first trimester

Name of the Condition

• Abscess of Breast Associated with Pregnancy, First Trimester (O91.111)

Summary

This condition involves a localized collection of pus within breast tissue that occurs during the first trimester of pregnancy. It is a complication of breast infection and may present with pain, swelling, and systemic symptoms. Prompt medical evaluation and treatment are necessary to prevent progression and ensure maternal health.

Causes

Abscesses typically result from bacterial infection, often due to Staphylococcus aureus or other pathogens, entering the breast tissue. During pregnancy, hormonal changes and increased breast vascularity can predispose to infection. Cracked nipples, trauma, or poor milk drainage may facilitate bacterial entry.

Risk Factors

• Cracked or damaged nipples.
• Previous breast infections.
• Poor hygiene practices.
• Engorgement or inadequate milk removal.
• Weakened immune system.

Symptoms

• Breast pain, swelling, or redness.
• Palpable, tender lump with fluctuance.
• Fever or chills.
• Nipple discharge or pus.
• Flu-like symptoms in severe cases.

Diagnosis

Diagnosis is based on clinical evaluation, including physical examination for signs of abscess (e.g., fluctuance, warmth). Ultrasound may be used to confirm the presence of an abscess and guide drainage. Cultures of discharge or aspirated fluid may identify the causative organism.

Treatment Options

• Antibiotics to target the underlying infection.
• Incision and drainage of the abscess, often under local anesthesia.
• Pain management with analgesics.
• Supportive care, including rest and hydration.

Prognosis and Follow-Up

With appropriate treatment, most abscesses resolve without long-term complications. Follow-up ensures complete healing and monitors for recurrence. Breastfeeding may be temporarily interrupted but can typically resume after treatment.

Complications

• Recurrent abscess formation.
• Spread of infection to surrounding tissue.
• Mastitis or sepsis if untreated.
• Potential impact on breastfeeding.

Lifestyle & Prevention

• Maintain good breast hygiene.
• Ensure proper breastfeeding technique to prevent nipple damage.
• Address engorgement promptly to reduce infection risk.
• Wear loose, breathable clothing.

When to Seek Professional Help

Seek care if experiencing breast pain, swelling, fever, or signs of infection. Prompt evaluation is critical to prevent abscess progression or systemic complications.

Tips for Medical Coders

Document the trimester (first trimester) and confirm the abscess is associated with pregnancy. Include clinical details such as physical exam findings, imaging results, or drainage procedures to support code assignment. Ensure documentation aligns with the specificity of O91.111.