M65.159 Other infective (teno)synovitis, unspecified hip

Name of the Condition

• Other infective (teno)synovitis, unspecified hip
• ICD-10 Code: M65.159

Summary

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

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

Symptoms

• Localized swelling, warmth, and tenderness over the hip
• Pain with movement or pressure
• Reduced range of motion or stiffness
• Systemic signs (e.g., fever, chills) if infection is severe
• 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., synovial fluid analysis, cultures) identify infectious agents.

Treatment Options

Treatment typically includes antibiotics targeted at the identified pathogen, often administered intravenously for severe cases. Surgical intervention may be necessary to drain abscesses or debride infected tissue. Pain management and physical therapy support recovery.

Prognosis and Follow-Up

With prompt treatment, outcomes are generally favorable, though delays can lead to joint damage or chronic pain. Follow-up includes monitoring for recurrence and assessing functional recovery.

Complications

Untreated or severe infections may result in joint destruction, sepsis, or chronic synovitis. Early intervention reduces these risks.

Lifestyle & Prevention

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

When to Seek Professional Help

Seek care if symptoms worsen, systemic signs (e.g., fever) develop, or mobility is significantly impaired. Prompt evaluation prevents complications.

Tips for Medical Coders

Document the hip side (unspecified) and confirm infective etiology. Ensure clinical notes support the diagnosis, as this code requires clear evidence of infection in the hip’s synovial structures.