M93.003 Unspecified slipped upper femoral epiphysis (nontraumatic), unspecified hip

Name of the Condition

• Unspecified slipped upper femoral epiphysis (nontraumatic), unspecified hip

Summary

Slipped upper femoral epiphysis (SUFE) is a condition where the femoral head (ball of the hip joint) shifts relative to the femoral neck due to a fracture through the growth plate. This nontraumatic form occurs without a specific injury and may lead to hip pain, limping, or altered gait. The condition typically affects adolescents during growth spurts and requires prompt evaluation to prevent complications.

Causes

The exact cause of nontraumatic SUFE is not fully understood, but it is associated with mechanical stress on the growth plate during rapid growth. Hormonal changes, particularly those affecting growth plate stability, may contribute. In some cases, underlying endocrine disorders or obesity may play a role, though the condition can also occur without identifiable triggers.

Risk Factors

• Age (most common in adolescents aged 10–16)
• Obesity or rapid weight gain
• Male gender (higher prevalence)
• Endocrine disorders (e.g., hypothyroidism, growth hormone abnormalities)
• Family history of SUFE

Symptoms

• Hip, thigh, or knee pain (often unilateral)
• Limp or altered gait
• Reduced range of motion in the affected hip
• External rotation of the leg when flexed
• Pain worsened by activity or weight-bearing

Diagnosis

Diagnosis involves a physical exam to assess hip movement, pain, and gait. Imaging, such as X-rays or MRI, confirms the slip by visualizing the growth plate and femoral head position. Additional tests may evaluate for underlying endocrine or metabolic conditions if risk factors are present.

Treatment Options

Treatment focuses on stabilizing the femoral head to prevent further slipping. Options include surgical fixation (e.g., pins or screws) or non-surgical management with activity modification and monitoring. The approach depends on the severity of the slip and patient age.

Prognosis and Follow-Up

With early diagnosis and appropriate treatment, most patients recover well. Long-term follow-up monitors for complications like avascular necrosis or arthritis. Regular check-ups ensure proper healing and address any functional limitations.

Complications

• Avascular necrosis (loss of blood supply to the femoral head)
• Premature osteoarthritis
• Chronic hip pain or stiffness
• Gait abnormalities or limb length discrepancy

Lifestyle & Prevention

Maintaining a healthy weight reduces stress on the hip joint. Avoiding high-impact activities during growth spurts may lower risk. Prompt evaluation of hip or knee pain in adolescents is critical for early intervention.

When to Seek Professional Help

Seek care if a child or adolescent experiences persistent hip, thigh, or knee pain, limping, or difficulty walking. Sudden worsening of symptoms or inability to bear weight requires immediate medical attention.

Tips for Medical Coders

Use M93.003 for unspecified slipped upper femoral epiphysis (nontraumatic) affecting an unspecified hip. Document the affected hip (left, right, or bilateral) if known, as this impacts specificity. Include details on nontraumatic onset and lack of specified hip to support code assignment.