M65.139 Other infective (teno)synovitis, unspecified wrist

Name of the Condition

• Other infective (teno)synovitis, unspecified wrist
• ICD-10 Code: M65.139

Summary

This condition involves an infection of the synovial sheath surrounding tendons (tenosynovitis) or the synovial membrane of the wrist joint. It typically causes localized inflammation, pain, and functional impairment in the wrist region. The term "unspecified" indicates the wrist is affected, but the specific side (left or right) is not documented.

Causes

The condition is most commonly caused by bacterial infections, though viral or fungal pathogens may also be involved. It can arise from direct inoculation (e.g., trauma, surgery) or hematogenous spread from a distant infection.

Risk Factors

• Recent wrist injuries (e.g., lacerations, fractures)
• Immunocompromised states (e.g., diabetes, HIV)
• Poor wound hygiene or delayed treatment of minor injuries
• Occupational or recreational exposure to pathogens (e.g., animal bites, contaminated environments)
• Prior wrist surgery or invasive procedures

Symptoms

• Localized swelling, warmth, and tenderness over the affected tendon or joint
• Pain with movement or pressure
• Reduced range of motion or stiffness
• Systemic signs (e.g., fever, chills) if infection is severe or widespread
• Possible drainage or pus if the infection is advanced

Diagnosis

Diagnosis involves a physical exam to assess inflammation and mobility. Imaging (e.g., MRI, ultrasound) visualizes soft tissue changes, while laboratory tests (e.g., blood cultures, synovial fluid analysis) identify the causative organism.

Treatment Options

Treatment typically includes antibiotics targeted at the identified pathogen, often administered intravenously for severe cases. Surgical drainage may be necessary if pus is present. Immobilization and pain management support recovery.

Prognosis and Follow-Up

With prompt treatment, most cases resolve without long-term damage. Follow-up ensures infection clearance and monitors for recurrence. Delayed care may lead to chronic joint or tendon damage.

Complications

• Spread of infection to surrounding tissues or bloodstream
• Tendon rupture or joint destruction
• Chronic pain or stiffness
• Systemic sepsis in severe cases

Lifestyle & Prevention

• Clean and dress wounds promptly to prevent infection
• Manage chronic conditions (e.g., diabetes) to support immune function
• Avoid exposure to contaminated environments or animal bites
• Seek timely care for wrist injuries to reduce infection risk

When to Seek Professional Help

Consult a healthcare provider if wrist pain, swelling, or redness persists, worsens, or is accompanied by fever, pus, or reduced mobility.

Tips for Medical Coders

Use M65.139 when documenting infective tenosynovitis or synovitis of the wrist without specifying left or right. Ensure clinical documentation supports the infection and wrist involvement to justify the code.