S82.46 Segmental fracture of shaft of fibula

Name of the Condition

• Segmental fracture of shaft of fibula
• ICD-10 Code: S82.46

Summary

A segmental fracture of the shaft of the fibula is a break in the long, thin bone of the lower leg that involves two separate fracture sites along the same bone segment, creating a "floating" middle fragment. This type of fracture typically affects the middle portion of the fibula and may be classified as displaced or non-displaced, depending on the alignment of the bone fragments.

Causes

Most commonly caused by high-energy trauma, such as motor vehicle accidents, falls from significant height, or direct impact to the leg. Twisting injuries or severe rotational forces can also lead to this type of fracture.

Risk Factors

• Participation in high-impact sports or activities with risk of falls.
• Osteoporosis or reduced bone density, which increases fragility.
• Advanced age, which may weaken bone strength.
• Previous leg injuries or surgeries that compromise bone integrity.

Symptoms

• Intense pain and swelling in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Possible deformity or instability of the leg structure.
• Numbness or tingling if nerve involvement occurs.

Diagnosis

Diagnosis involves a physical examination by a healthcare professional to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays, are typically used to confirm the fracture and determine its extent and alignment. CT scans may be used for detailed visualization of complex fractures.

Treatment Options

• Immobilization of the leg using a splint or cast to allow the bone to heal.
• Surgical intervention, such as internal fixation with plates or screws, for displaced or unstable fractures.
• Pain management with medications such as analgesics.
• Physical therapy to restore movement and strength after healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, treatment approach, and patient factors like age and overall health. Most fractures heal with proper immobilization or surgery, but recovery may take several months. Follow-up appointments are necessary to monitor healing and adjust treatment as needed.

Complications

• Nonunion or delayed healing of the fracture.
• Malunion, where the bone heals in an incorrect position.
• Nerve or blood vessel damage near the fracture site.
• Infection, particularly with open fractures.
• Chronic pain or stiffness in the leg.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid activities that increase fall risk, especially in older adults.
• Strengthen leg muscles to improve stability and reduce injury likelihood.

When to Seek Professional Help

Seek immediate medical attention if you experience severe leg pain, inability to bear weight, visible deformity, or signs of nerve damage (e.g., numbness, tingling). Prompt evaluation is critical for proper diagnosis and treatment.

Tips for Medical Coders

Document the fracture as segmental (two separate fracture sites in the same bone segment) and specify the shaft of the fibula. Include details on displacement, open/closed status, and any associated injuries. Ensure documentation supports the use of S82.46 and aligns with clinical findings.