M65.11 Other infective (teno)synovitis, shoulder

Name of the Condition

• Other infective (teno)synovitis, shoulder
• ICD-10 Code: M65.11

Summary

This condition involves an infection of the synovial sheath surrounding tendons (tenosynovitis) or the synovial membrane of the shoulder joint. It typically causes localized inflammation, pain, and functional impairment in the shoulder region.

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

• Factors increasing risk include recent shoulder injuries, immunocompromised states (e.g., diabetes, HIV), poor wound hygiene, and occupations with repetitive shoulder motion or exposure to pathogens.

Symptoms

• Patients may experience swelling, tenderness, warmth, and reduced mobility in the shoulder. Systemic symptoms like fever or malaise may occur if the infection is severe.

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., synovial fluid analysis, cultures) identify infectious agents.

Treatment Options

• Antibiotics are the primary treatment for bacterial infections. Surgical drainage or debridement may be necessary for abscesses or severe cases. Rest, immobilization, and physical therapy support recovery.

Prognosis and Follow-Up

With prompt treatment, most patients recover fully. Follow-up may include monitoring for recurrence or complications, especially in immunocompromised individuals.

Complications

• Untreated infections can lead to joint damage, chronic pain, or sepsis. Delayed treatment may increase the risk of permanent functional impairment.

Lifestyle & Prevention

• Maintain good wound care for shoulder injuries. Avoid repetitive trauma or exposure to contaminated environments. Seek prompt care for shoulder injuries to reduce infection risk.

When to Seek Professional Help

• Consult a healthcare provider if shoulder pain, swelling, or warmth persists, or if systemic symptoms like fever develop. Early intervention improves outcomes.

Tips for Medical Coders

• Use M65.11 for infective tenosynovitis or synovitis of the shoulder. Document the anatomical site (shoulder) and confirm infection via clinical findings or lab results. Ensure specificity in the medical record to support coding accuracy.