M65.119 Other infective (teno)synovitis, unspecified shoulder

Name of the Condition

• Other infective (teno)synovitis, unspecified shoulder
• ICD-10 Code: M65.119

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 and immobilization of the shoulder may aid recovery.

Prognosis and Follow-Up

Prognosis depends on early treatment and the severity of infection. Most patients recover fully with prompt care, but delayed treatment can lead to chronic pain or joint damage. Follow-up includes monitoring for recurrence or complications.

Complications

• Chronic shoulder pain or stiffness
• Joint damage or reduced mobility
• Spread of infection to surrounding tissues or bloodstream (sepsis)
• Tendon rupture or scarring

Lifestyle & Prevention

• Maintain good wound hygiene, especially after injuries or procedures.
• Avoid repetitive shoulder strain or exposure to contaminated environments.
• Manage underlying conditions like diabetes to reduce infection risk.

When to Seek Professional Help

Seek care if shoulder pain, swelling, or warmth persists, worsens, or is accompanied by fever. Prompt evaluation is critical to prevent complications.

Tips for Medical Coders

Document the shoulder as "unspecified" when the exact side is not clinically documented. Ensure infection is confirmed via clinical or laboratory findings. Code M65.119 is appropriate for infective tenosynovitis of the shoulder when the side is not specified.