M71.149 Other infective bursitis, unspecified hand

Name of the Condition

• Other infective bursitis, unspecified hand

Summary

Other infective bursitis, unspecified hand refers to an infection of a bursa (a small fluid-filled sac that reduces friction between tissues) in the hand region that is not classified under more specific infective bursitis codes. This condition involves microbial invasion of the bursa, leading to inflammation, pain, and potential functional impairment of the hand.

Causes

Other infective bursitis, unspecified hand typically results from bacterial infection, often introduced through direct trauma, skin breakdown, or spread from adjacent tissues. Common causative organisms include Staphylococcus aureus. Non-bacterial infections or secondary infection of a pre-existing bursitis may also occur, though the exact etiology varies by case.

Risk Factors

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

Symptoms

• Localized pain, swelling, and warmth over the hand bursa
• Redness or erythema at the site
• Fever or systemic signs of infection
• Limited range of motion in the hand
• Pus drainage if the infection progresses

Diagnosis

Diagnosis involves a physical examination to assess bursal characteristics, including tenderness, fluctuance, and warmth. Imaging (e.g., ultrasound) may confirm fluid collection or inflammation. Aspiration of the bursa for culture and sensitivity testing helps identify the causative organism and guide antimicrobial therapy.

Treatment Options

Treatment typically includes antimicrobial therapy targeted at the identified pathogen, often initiated empirically with broad-spectrum antibiotics. Drainage of the infected bursa (e.g., aspiration or surgical intervention) may be necessary for severe cases. Rest, elevation, and pain management support recovery. Physical therapy may aid in restoring function once infection is controlled.

Prognosis and Follow-Up

With prompt treatment, prognosis is generally favorable, though delays can lead to complications. Follow-up ensures resolution of infection and monitors for recurrence. Chronic or untreated cases may result in persistent pain or functional limitations.

Complications

Potential complications include abscess formation, spread of infection to adjacent tissues or joints, sepsis, or chronic bursitis. Scarring or reduced mobility may occur if inflammation persists.

Lifestyle & Prevention

• Avoid repetitive hand trauma or pressure
• Maintain good hand hygiene to prevent skin infections
• Promptly treat minor hand injuries or wounds
• Manage underlying conditions (e.g., diabetes) to reduce infection risk

When to Seek Professional Help

Seek care if symptoms worsen (e.g., increasing pain, swelling, fever), pus drainage occurs, or hand function is impaired. Immediate evaluation is necessary for signs of systemic infection (e.g., high fever, chills).

Tips for Medical Coders

Use M71.149 for infective bursitis of an unspecified hand bursa when documentation does not specify left or right. Ensure clinical notes support infection (e.g., culture results, antimicrobial use) and bursal involvement. Avoid this code if a more specific hand or bursal site is documented.