S82.426B Nondisplaced transverse fracture of shaft of unspecified fibula, initial encounter for open fracture type I or II

Name of the Condition

• Nondisplaced transverse fracture of shaft of unspecified fibula, initial encounter for open fracture type I or II
• ICD-10 Code: S82.426B

Summary

A nondisplaced transverse fracture of the shaft of the unspecified fibula is a break in the long, thin bone on the lateral side of the lower leg, where the fracture line runs horizontally across the bone and the bone fragments remain in their normal anatomical alignment. This injury is classified as an open fracture type I or II, meaning the overlying skin is broken but the wound is typically small and clean, with minimal soft tissue damage. The term "unspecified" indicates the fibula is not identified as right or left.

Causes

Most commonly caused by direct trauma or high-impact forces to the leg, such as falls, sports injuries, or motor vehicle accidents. Twisting motions or sudden impacts can also lead to this type of fracture. Open fractures may result from the same mechanisms, with the force sufficient to break the skin and expose the fracture site.

Risk Factors

• Participation in contact sports or high-impact activities.
• Osteoporosis or reduced bone density, which increases fragility.
• Advanced age, which may weaken bone strength.
• Previous leg injuries or surgeries.

Symptoms

• Pain and swelling in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Visible open wound (for open fracture types I or II).
• Possible deformity or instability of the leg structure.

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, determine its extent, and evaluate alignment. For open fractures, the wound is examined to classify the type (I or II) based on size and contamination.

Treatment Options

• Wound cleaning and debridement for open fractures to reduce infection risk.
• Immobilization with a cast or brace to stabilize the fracture.
• Pain management with medications.
• Surgical intervention may be required if the fracture is unstable or if soft tissue damage is significant.
• Physical therapy to restore strength and mobility after healing.

Prognosis and Follow-Up

Prognosis is generally favorable for nondisplaced fractures, especially with proper immobilization and care. Follow-up appointments are necessary to monitor healing, typically with repeat imaging to ensure the fracture remains aligned. Open fractures require closer monitoring for signs of infection. Most patients regain full function with appropriate treatment.

Complications

• Infection, particularly with open fractures.
• Delayed healing or nonunion if the fracture does not heal properly.
• Nerve or blood vessel damage in severe cases.
• Chronic pain or instability if the fracture heals incorrectly.

Lifestyle & Prevention

• Wear protective gear during high-risk activities (e.g., sports, construction).
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Avoid activities that increase fall risk, especially in older adults.
• Use proper techniques to prevent twisting injuries during exercise.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or an open wound after a leg injury. Signs of infection (e.g., redness, pus, fever) or worsening pain also require prompt evaluation.

Tips for Medical Coders

Document the fracture type (transverse), displacement status (nondisplaced), bone involved (fibula, unspecified), and encounter type (initial) clearly. For open fractures, specify the type (I or II) based on wound size and contamination. Ensure documentation supports the "unspecified" designation if the fibula is not identified as right or left.