M67.352 Transient synovitis, left hip

Name of the Condition

• Transient Synovitis, Left Hip

Summary

Transient synovitis of the left hip is a self-limiting inflammatory condition affecting the synovial membrane of the left hip joint. It typically presents with hip pain and limping, especially in children, and resolves without long-term sequelae.

Causes

The exact cause is often unknown but may follow viral infections or minor trauma. Allergic reactions or joint stress can also contribute to its development.

Risk Factors

• Most common in children aged 3 to 10 years.
• Slightly higher prevalence in boys.
• Recent upper respiratory infections may increase risk.

Symptoms

• Sudden onset of hip pain, usually unilateral (left side).
• Limping or reluctance to bear weight on the affected limb.
• Swelling and tenderness around the joint.
• Mild fever may accompany symptoms.

Diagnosis

Diagnosis is primarily clinical, based on history and physical exam. Ultrasound may confirm joint effusion, while blood tests and X-rays help rule out other conditions.

Treatment Options

• Rest and avoidance of weight-bearing activities.
• Nonsteroidal anti-inflammatory drugs (NSAIDs) for pain and inflammation.
• Supportive care until symptoms resolve.

Prognosis and Follow-Up

Most cases resolve within weeks with no long-term effects. Follow-up may involve monitoring for recurrence or ruling out other conditions if symptoms persist.

Complications

Rarely, transient synovitis may be confused with septic arthritis, which requires urgent treatment. Delayed diagnosis could lead to joint damage if another condition is present.

Lifestyle & Prevention

• Avoid excessive joint stress or trauma.
• Prompt treatment of viral infections may reduce risk.
• Maintain overall joint health through age-appropriate activity.

When to Seek Professional Help

Seek care if symptoms worsen, fever persists, or weight-bearing becomes impossible, as these may indicate a more serious condition.

Tips for Medical Coders

Use M67.352 for transient synovitis specifically affecting the left hip. Document laterality (left) and confirm the condition is not associated with trauma or infection to support accurate coding.