M67.351 Transient synovitis, right hip

Name of the Condition

• Transient Synovitis, Right Hip

Summary

Transient synovitis of the right hip is a self-limiting inflammatory condition affecting the synovial membrane of the right 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.
• 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, persistent symptoms or misdiagnosis could lead to unnecessary interventions. Septic arthritis should be excluded to avoid complications.

Lifestyle & Prevention

• Avoid overexertion or trauma to the hip joint.
• 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, persist beyond a few weeks, or if fever, severe pain, or inability to bear weight occurs.

Tips for Medical Coders

Document the affected site (right hip) and clinical findings to support the M67.351 code. Ensure differentiation from other hip conditions, such as septic arthritis or trauma, to justify the diagnosis.