S82.492K Other fracture of shaft of left fibula, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Other fracture of shaft of left fibula, subsequent encounter for closed fracture with nonunion
• ICD-10 Code: S82.492K

Summary

This condition describes a fracture of the shaft (middle portion) of the left fibula, the smaller bone in the lower leg, that has not healed properly (nonunion) and is documented during a subsequent encounter for a closed fracture. The term "other" indicates the fracture type is distinct but not classified under narrower subcategories. The fracture is closed (skin intact), and the nonunion signifies a failure of the bone to unite after an expected healing period. This code is used when the patient is receiving active treatment for the nonunion during a follow-up visit.

Causes

Most commonly caused by initial trauma to the left leg, such as falls, sports injuries, or motor vehicle accidents. Nonunion may result from inadequate immobilization, poor blood supply to the fracture site, infection, or excessive movement during healing.

Risk Factors

• Participation in high-impact activities or contact sports.
• Osteoporosis or reduced bone density, which impairs healing.
• Smoking, which affects blood flow and bone repair.
• Advanced age, which may weaken bone strength.
• Previous leg injuries or surgeries that disrupt healing.

Symptoms

• Persistent pain and swelling in the lower left leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Possible deformity or instability of the leg structure.
• No visible signs of healing (e.g., new bone formation) on imaging.

Diagnosis

Diagnosis involves a physical examination to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays or CT scans, are used to confirm nonunion by showing a persistent fracture line with no bridging bone. Additional tests may evaluate blood flow or infection if suspected.

Treatment Options

Treatment may include immobilization with a cast or brace to stabilize the fracture, surgical intervention (e.g., bone grafting, internal fixation) to promote healing, or physical therapy to restore function. Pain management and monitoring for complications are also part of the care plan.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and the effectiveness of treatment. Follow-up care is essential to monitor healing progress, adjust treatment as needed, and prevent further complications. Regular imaging and clinical assessments help track recovery.

Complications

• Chronic pain or instability in the leg.
• Infection, especially if surgical intervention is required.
• Nerve or blood vessel damage near the fracture site.
• Long-term mobility issues or disability.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Quit smoking to improve healing potential.
• Use protective gear during sports or activities to reduce injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity in the lower left leg, or if you notice no improvement in symptoms after initial treatment. Persistent pain or difficulty bearing weight warrants evaluation by a healthcare professional.

Tips for Medical Coders

This code is specific to a subsequent encounter for a closed fracture of the left fibula shaft with nonunion. Document the encounter type (subsequent) and confirm the fracture is closed (skin intact) and nonunion is present. Ensure the left fibula shaft is clearly identified, and the fracture type is classified as "other" (not a more specific subcategory). Follow clinical documentation guidelines to support the diagnosis and treatment provided.