S72.443M Displaced fracture of lower epiphysis (separation) of unspecified femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Displaced fracture of lower epiphysis (separation) of unspecified femur, subsequent encounter for open fracture type I or II 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 I or II, meaning the overlying skin is breached but the wound is typically small and clean. This is a subsequent encounter, indicating ongoing care for the injury, and the fracture has not healed (nonunion), requiring further management to promote bone union and restore function.

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.

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).

Symptoms

• Severe pain in the hip or thigh region.
• 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.
• Persistent pain or instability indicating nonunion.

Diagnosis

Physical examination to assess pain, swelling, and limb alignment. Imaging studies, such as X-rays or CT scans, to confirm the fracture type, displacement, and nonunion status. Evaluation of the open wound to classify the fracture as type I or II. Assessment of healing progress during subsequent encounters.

Treatment Options

Stabilization of the fracture with casting, bracing, or surgical fixation (e.g., pins, screws) to promote union. Wound care for the open fracture to prevent infection. Pain management and physical therapy to restore mobility and strength. Monitoring for signs of healing or complications during follow-up visits.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, treatment adherence, and individual healing capacity. Nonunion may require additional interventions, such as bone grafting or revised surgery. Regular follow-up with imaging to assess healing progress is essential. Long-term monitoring for joint function and potential arthritis is recommended.

Complications

Delayed or failed healing (nonunion). Infection of the open wound. Nerve or vascular damage. Chronic pain or joint stiffness. Malalignment leading to functional impairment.

Lifestyle & Prevention

Avoid high-risk activities or use protective gear during sports. Maintain bone health through adequate nutrition (e.g., calcium, vitamin D) and exercise. Prompt treatment of initial fractures to reduce nonunion risk. Follow post-treatment guidelines for weight-bearing and activity restrictions.

When to Seek Professional Help

Severe or worsening pain, swelling, or deformity. Signs of infection (e.g., fever, redness, pus). Numbness, tingling, or loss of circulation in the leg. Inability to bear weight or move the leg. Persistent instability or lack of healing progress.

Tips for Medical Coders

Document the fracture type (open I or II), encounter stage (subsequent), and nonunion status clearly. Include details on wound characteristics, treatment provided, and follow-up care to support code assignment. Ensure alignment with clinical documentation for accuracy.