S72.422K Displaced fracture of lateral condyle of left femur, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Displaced fracture of lateral condyle of left femur, subsequent encounter for closed fracture with nonunion

Summary

A displaced fracture of the lateral condyle of the left femur is a bone break affecting the outer bony prominence of the thigh bone near the knee. In this subsequent encounter, the fracture remains closed (skin intact) but has not healed properly, resulting in nonunion. This condition requires ongoing management to address the lack of bone healing and restore function.

Causes

This fracture typically results from high-impact trauma, such as falls, motor vehicle accidents, or direct blows to the knee. Sports injuries or forceful twisting of the knee can also cause this type of fracture. Nonunion may develop due to inadequate immobilization, poor blood supply to the fracture site, infection, or excessive movement during healing.

Risk Factors

• Participation in high-impact or contact sports.
• Osteoporosis or reduced bone density.
• Advanced age, which may weaken bone structure.
• Previous fractures or bone disorders.
• Activities involving high injury risk.
• Smoking or poor nutrition, which can impair healing.

Symptoms

• Persistent pain localized to the knee or thigh area.
• Swelling, bruising, or tenderness around the fracture site.
• Inability to bear weight or move the knee normally.
• Visible deformity or instability in severe cases.
• Possible numbness or tingling if nerves are affected.
• Lack of improvement in symptoms over time, indicating nonunion.

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and limb alignment. Imaging tests, such as X-rays or CT scans, are used to confirm the fracture and evaluate displacement. MRI may be ordered if soft tissue damage is suspected. Follow-up imaging is often performed to assess healing progress and identify nonunion.

Treatment Options

Treatment may include surgical intervention to realign and stabilize the fracture, such as internal fixation with plates or screws. Bone grafting may be necessary to promote healing. Immobilization with a cast or brace, pain management, and physical therapy are typically required to restore movement and strength. In some cases, additional procedures or long-term monitoring may be needed.

Prognosis and Follow-Up

The prognosis depends on the severity of the nonunion and the effectiveness of treatment. With proper intervention, many patients can achieve healing and improved function, but recovery may be prolonged. Regular follow-up appointments and imaging are essential to monitor progress and adjust treatment as needed. Long-term outcomes may include reduced mobility or arthritis if the joint is affected.

Complications

• Chronic pain or discomfort.
• Persistent instability or deformity.
• Delayed or failed healing (nonunion).
• Infection, especially if surgery is performed.
• Nerve or blood vessel damage.
• Post-traumatic arthritis in the knee joint.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Follow prescribed immobilization and weight-bearing restrictions.
• Engage in physical therapy to maintain joint mobility and strength.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.
• Quit smoking, as it impairs healing.
• Use protective gear during sports or activities with injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after an injury. Contact your healthcare provider if symptoms worsen, or if you notice persistent pain, inability to move the knee, or signs of infection (e.g., fever, redness, drainage). Follow up as scheduled for monitoring of healing progress.

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with nonunion. Ensure clinical notes specify the fracture's location (lateral condyle of left femur), displacement, and the presence of nonunion. Include details about treatment provided, such as surgical intervention or imaging results, to support coding accuracy. Verify that the encounter aligns with the definition of "subsequent" (follow-up care after initial treatment) and that the fracture remains closed (no skin penetration).