M71.03 Abscess of bursa, wrist

Name of the Condition

• Abscess of bursa, wrist

Summary

An abscess of the bursa, wrist is a localized collection of pus within the bursa of the wrist, a small fluid-filled sac that reduces friction between tissues. This condition typically causes pain, swelling, and warmth at the affected site. The wrist-specific designation indicates the abscess is localized to the bursa in the wrist region.

Causes

Abscesses of the wrist bursa usually result from bacterial infection, often introduced through direct trauma, skin breakdown, or spread from adjacent tissues. Staphylococcus aureus is a common causative organism. Non-infectious causes, such as foreign body reaction or sterile inflammation, are less frequent.

Risk Factors

• Recent injury or surgery near the wrist bursa
• Skin infections or open wounds in the wrist area
• Immunocompromised states (e.g., diabetes, HIV)
• Chronic inflammatory conditions (e.g., rheumatoid arthritis)
• Repetitive motion or pressure on the wrist bursa

Symptoms

• Localized pain, tenderness, or throbbing in the wrist
• Swelling, redness, or warmth over the bursa
• Limited range of motion in the wrist joint
• Possible fever or systemic signs if infection spreads
• Pus drainage if the abscess ruptures

Diagnosis

Diagnosis involves a physical examination to assess bursal swelling, warmth, and tenderness. Imaging (e.g., ultrasound) may confirm fluid collection. Aspiration of the bursa may be performed to identify the causative organism and guide treatment.

Treatment Options

Treatment typically includes antibiotic therapy to address the infection. Drainage of the abscess may be necessary if it does not resolve with antibiotics alone. Rest and immobilization of the wrist can help reduce symptoms and promote healing. In severe cases, surgical intervention may be required.

Prognosis and Follow-Up

With appropriate treatment, most wrist bursal abscesses resolve without long-term complications. Follow-up care may include monitoring for recurrence or signs of spreading infection. Physical therapy may be recommended to restore wrist function once the infection has cleared.

Complications

Untreated or inadequately treated abscesses can lead to the spread of infection to surrounding tissues or the bloodstream. Chronic inflammation or scarring of the bursa may result in persistent pain or limited mobility.

Lifestyle & Prevention

Avoiding repetitive wrist movements or pressure can reduce the risk of bursal irritation. Keeping the wrist clean and protected from injury may help prevent infection. Prompt treatment of skin infections or wounds near the wrist is important.

When to Seek Professional Help

Seek medical attention if wrist pain, swelling, or redness worsens, or if fever develops. Immediate care is needed if pus drainage or signs of systemic infection (e.g., chills, confusion) occur.

Tips for Medical Coders

Code M71.03 is specific to an abscess of the bursa in the wrist. Documentation should clearly indicate the anatomical site (wrist) and confirm the presence of a bursal abscess. Ensure the diagnosis aligns with clinical findings and imaging results to support accurate coding.