S82.66 Nondisplaced fracture of lateral malleolus of unspecified fibula

Name of the Condition

• Nondisplaced fracture of lateral malleolus of unspecified fibula

Summary

A nondisplaced fracture of the lateral malleolus of the unspecified fibula is a break in the outer bony prominence of the ankle where the bone fragment remains in its normal anatomical position. This injury typically results from trauma and does not involve displacement of the fracture fragments. The stability of the ankle joint is usually preserved, and treatment focuses on immobilization and healing.

Causes

Direct trauma to the ankle, such as a fall or impact. Sudden twisting or rolling of the ankle during activities. High-impact injuries, including sports or accidents.

Risk Factors

• Participation in activities with high ankle stress (e.g., running, jumping).
• Osteoporosis or weakened bone density.
• Previous ankle injuries that may compromise stability.
• Age-related bone fragility.

Symptoms

• Pain localized to the outer ankle.
• Swelling and bruising around the fracture site.
• Difficulty bearing weight or walking.
• Minimal to no visible deformity.

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, are used to confirm the fracture and evaluate its alignment. Additional scans (e.g., CT or MRI) may be ordered for detailed assessment if needed.

Treatment Options

• Immobilization with a cast or splint to stabilize the fracture.
• Pain management through medications or ice therapy.
• Weight-bearing restrictions as advised by a healthcare provider.
• Follow-up imaging to monitor healing progress.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with proper immobilization and rest. Follow-up appointments are typically scheduled to assess healing and adjust treatment. Full recovery may take several weeks, with gradual return to normal activities as tolerated.

Complications

• Delayed healing or nonunion in rare cases.
• Post-traumatic arthritis if the joint is affected.
• Persistent pain or stiffness in the ankle.

Lifestyle & Prevention

• Wear supportive footwear during physical activities.
• Strengthen ankle muscles through targeted exercises.
• Avoid uneven surfaces or high-risk movements.
• Maintain bone health with adequate calcium and vitamin D intake.

When to Seek Professional Help

Seek immediate medical attention if severe pain, swelling, or inability to bear weight occurs after an injury. Contact a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the fracture as nondisplaced and specify the lateral malleolus of the fibula. Include details on the affected side (unspecified in this code) and any associated injuries. Ensure clinical documentation supports the absence of displacement to justify the code selection.