S72.443N Displaced fracture of lower epiphysis (separation) of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Displaced fracture of lower epiphysis (separation) of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Summary

This condition involves a displaced fracture of the lower epiphysis (growth plate) of the femur, resulting in separation of the epiphyseal segment from the main bone. The fracture is characterized by misalignment of the broken bone parts and is classified as an open fracture type IIIA, IIIB, or IIIC, meaning the overlying skin is breached with significant soft tissue damage, contamination, or vascular injury. The term "nonunion" indicates the fracture has failed to heal properly after an initial period. This is a subsequent encounter, meaning the patient is receiving ongoing care for the established nonunion.

Causes

High-impact trauma, such as falls, motor vehicle accidents, or direct blows to the thigh. Sports injuries or physical altercations. Stress fractures from repetitive overuse or strenuous activity. Inadequate initial treatment or poor healing conditions may contribute to nonunion.

Risk Factors

• Advanced age, which may lead to decreased bone density.
• Osteoporosis or other bone-weakening conditions.
• Participation in high-risk activities or contact sports.
• Prior history of femur fractures or bone disorders.
• Age (more common in children and adolescents due to the presence of the epiphyseal plate).
• Poor blood supply to the fracture site.
• Infection or contamination in open fractures.

Symptoms

• Severe pain in the hip or thigh region, often persistent or worsening.
• Swelling, bruising, or visible deformity of the affected leg.
• Inability to bear weight or move the leg normally.
• Possible numbness or tingling if nerves are involved.
• Signs of infection, such as redness, warmth, or drainage in open fractures.
• Persistent instability or abnormal movement at the fracture site.

Diagnosis

Physical examination to assess pain, swelling, limb alignment, and signs of infection. Imaging studies, such as X-rays or CT scans, to confirm nonunion and evaluate fracture alignment. Assessment of soft tissue damage and vascular status in open fractures. Review of prior treatment and healing history.

Treatment Options

Surgical intervention is often required to address nonunion and stabilize the fracture, such as internal fixation with plates, screws, or rods. Bone grafting may be used to promote healing. Antibiotics and wound care for open fractures to manage infection. Physical therapy to restore function and strength after stabilization.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, soft tissue damage, and response to treatment. Nonunion may require extended healing time or additional procedures. Regular follow-up with imaging to monitor healing progress is essential. Long-term rehabilitation may be needed to restore mobility and function.

Complications

Delayed or failed healing (nonunion). Infection, particularly in open fractures. Nerve or vascular damage. Chronic pain or arthritis. Limb length discrepancy or deformity. Reduced mobility or functional impairment.

Lifestyle & Prevention

Avoid high-risk activities that may lead to trauma. Maintain bone health through proper nutrition (e.g., calcium, vitamin D) and exercise. Use protective equipment during sports or activities. Follow post-injury care instructions to support healing and reduce complications.

When to Seek Professional Help

Seek immediate medical attention for severe pain, visible deformity, or inability to move the leg. Contact a healthcare provider if symptoms worsen, signs of infection develop, or there is no improvement in healing. Follow up as recommended for ongoing care of nonunion.

Tips for Medical Coders

Document the type of open fracture (IIIA, IIIB, or IIIC) and confirmation of nonunion. Specify that this is a subsequent encounter for the established condition. Include details on treatment provided for nonunion and any complications. Ensure documentation supports the need for ongoing care and justifies the code assignment.