O91.012 Infection of nipple associated with pregnancy, second trimester

Name of the Condition

• Infection of nipple associated with pregnancy, second trimester (O91.012)

Summary

This condition involves bacterial or fungal infection of the nipple occurring during the second trimester of pregnancy. It may present as localized inflammation, pain, or discharge and requires prompt evaluation to prevent complications like mastitis or abscess formation.

Causes

Infections often arise from bacterial colonization of the nipple, commonly due to Staphylococcus aureus or Candida species. Risk increases with cracked or damaged nipples, poor hygiene, or inadequate breastfeeding techniques, which allow pathogens to enter the skin barrier.

Risk Factors

• Cracked, sore, or damaged nipples from breastfeeding.
• Poor hygiene practices during lactation.
• History of previous nipple infections.
• Weakened immune system during pregnancy or postpartum.
• Use of tight or non-breathable clothing.

Symptoms

• Pain, tenderness, or burning sensation in the nipple.
• Redness, swelling, or warmth of the affected area.
• Discharge (pus or bloody fluid) from the nipple.
• Itching or scaling, especially with fungal infections.
• Fever or systemic symptoms in severe cases.

Diagnosis

Diagnosis is clinical, based on symptoms and physical examination. Cultures of nipple discharge may be taken to identify the causative organism. Imaging, such as ultrasound, may be used to assess for abscess formation.

Treatment Options

Treatment typically includes topical or systemic antibiotics for bacterial infections, antifungal medications for fungal infections, and pain management. Proper hygiene and breastfeeding techniques are emphasized to prevent recurrence.

Prognosis and Follow-Up

With prompt treatment, most cases resolve without complications. Follow-up may involve monitoring for recurrence or progression to mastitis. Severe cases requiring drainage or further intervention may have a longer recovery period.

Complications

Untreated infections can progress to mastitis, breast abscess, or systemic infection. Chronic pain or nipple damage may occur if left unaddressed.

Lifestyle & Prevention

• Maintain good nipple hygiene during pregnancy and lactation.
• Use proper breastfeeding techniques to avoid nipple trauma.
• Wear loose, breathable clothing to reduce moisture buildup.
• Address cracked nipples promptly with moisturizers or ointments.

When to Seek Professional Help

Seek care if symptoms worsen, fever develops, or discharge becomes purulent. Immediate evaluation is needed for signs of systemic infection or abscess formation.

Tips for Medical Coders

Document the trimester (second trimester) and confirm the infection is associated with pregnancy. Ensure clinical notes specify the timing and relationship to pregnancy for accurate coding.