S72.436K Nondisplaced fracture of medial condyle of unspecified femur, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Nondisplaced fracture of medial condyle of unspecified femur, subsequent encounter for closed fracture with nonunion

Summary

This condition involves a fracture of the medial condyle, the inner rounded projection of the femur at the knee joint, where the bone fragments remain aligned without displacement. It is classified as a closed fracture with nonunion, meaning the fracture site has failed to heal properly during subsequent encounters. The injury affects knee stability and function, potentially causing persistent pain, swelling, and impaired mobility. Treatment focuses on promoting healing or addressing the nonunion.

Causes

High-impact trauma, such as falls, motor vehicle accidents, or direct blows to the knee. Sports injuries or physical altercations involving the thigh. Stress fractures from repetitive overuse or strenuous activity. Nonunion may result from inadequate immobilization, poor blood supply to the fracture site, or underlying health conditions affecting bone healing.

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.
• Conditions that impair bone healing, such as diabetes or smoking.
• Inadequate initial treatment or immobilization of the fracture.

Symptoms

• Persistent severe pain localized to the inner knee or thigh.
• Swelling, bruising, or visible deformity around the knee.
• Inability to bear weight or move the knee joint properly.
• Possible numbness or tingling if nerves are involved.
• Lack of improvement in symptoms despite prior treatment.

Diagnosis

Physical examination to assess pain, swelling, and limb alignment. Imaging studies, such as X-rays or CT scans, to confirm the fracture type, location, and nonunion status. Additional tests, such as bone scans or MRI, may be used to evaluate blood flow and healing potential. Review of prior treatment and imaging to assess progress.

Treatment Options

• Immobilization with a cast or brace to stabilize the fracture.
• Surgical intervention, such as bone grafting or internal fixation, to promote healing.
• Physical therapy to restore mobility and strength.
• Pain management with medications or other modalities.
• Monitoring for signs of healing or complications.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion, patient health, and treatment response. Follow-up imaging and clinical assessments are necessary to monitor healing. Long-term outcomes may include persistent pain or reduced knee function if nonunion is not resolved. Regular check-ups are important to adjust treatment as needed.

Complications

• Chronic pain or instability of the knee joint.
• Progression to a displaced fracture.
• Infection, particularly if surgical intervention is required.
• Arthritis or joint damage due to prolonged nonunion.
• Nerve or blood vessel injury in severe cases.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.
• Use protective gear during sports or high-risk activities.
• Quit smoking and limit alcohol to improve bone healing.
• Follow post-treatment instructions carefully to optimize recovery.

When to Seek Professional Help

Seek immediate care if pain worsens, swelling increases, or mobility declines. Contact a provider if symptoms do not improve with treatment or if new symptoms, such as fever or wound drainage, develop. Prompt evaluation is necessary for suspected nonunion or complications.

Tips for Medical Coders

Document the fracture type (nondisplaced), encounter stage (subsequent), and nonunion status clearly. Include details on treatment provided and any imaging confirming nonunion. Ensure documentation supports the closed fracture classification and subsequent encounter timing. Verify that all relevant clinical details are recorded to justify code assignment.