S82.425C Nondisplaced transverse fracture of shaft of left fibula, initial encounter for open fracture type IIIA, IIIB, or IIIC

Name of the Condition

• Nondisplaced transverse fracture of shaft of left fibula, initial encounter for open fracture type IIIA, IIIB, or IIIC
• ICD-10 Code: S82.425C

Summary

A nondisplaced transverse fracture of the shaft of the left 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 middle portion of the bone. The bone fragments remain in their normal anatomical alignment, meaning there is no visible separation or mispositioning of the broken parts. This code specifically applies to initial encounters for open fractures classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and potential contamination.

Causes

Most commonly caused by direct trauma or impact to the leg, such as from falls, sports injuries, or motor vehicle accidents. High-force impacts or twisting motions can also lead to this type of fracture. Open fractures occur when the broken bone pierces the skin, exposing the fracture site to the external environment.

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.
• High-energy trauma, such as motor vehicle collisions or falls from height.

Symptoms

• Severe pain and swelling in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Visible wound or open fracture site.
• Possible deformity or instability of the leg structure.
• Signs of infection, such as redness, warmth, or drainage from the wound.

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. Additional imaging, like CT scans, may be used to evaluate soft tissue damage. The open fracture type (IIIA, IIIB, or IIIC) is determined by the severity of soft tissue injury and contamination.

Treatment Options

Treatment focuses on stabilizing the fracture, managing the open wound, and preventing infection. This may include surgical intervention to clean the wound, debride damaged tissue, and stabilize the bone with hardware. Antibiotics are often administered to reduce infection risk. Immobilization with a cast or brace may be used, and physical therapy is typically recommended during recovery to restore function.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture and soft tissue damage. Nondisplaced fractures generally heal well with proper treatment, but open fractures carry a higher risk of complications. Follow-up care involves monitoring for infection, ensuring proper wound healing, and assessing bone union. Rehabilitation may be necessary to restore strength and mobility.

Complications

• Infection at the fracture site.
• Delayed or nonunion of the bone.
• Nerve or vascular damage.
• Chronic pain or instability.
• Post-traumatic arthritis.
• Compartment syndrome (increased pressure in the leg).

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through proper nutrition and exercise.
• Avoid activities that increase fall risk.
• Seek prompt treatment for leg injuries to prevent complications.
• Follow post-injury care instructions to support healing.

When to Seek Professional Help

Seek immediate medical attention if you experience severe leg pain, swelling, or an open wound after an injury. Signs of infection, such as fever, redness, or drainage, also require prompt evaluation. Difficulty bearing weight or visible deformity should be assessed by a healthcare provider.

Tips for Medical Coders

This code (S82.425C) is specific to a nondisplaced transverse fracture of the left fibula with an open fracture type IIIA, IIIB, or IIIC, and it applies to the initial encounter. Documentation must clearly specify the fracture type, location (left fibula), and that it is an initial encounter for an open fracture. Coders should verify the open fracture classification (IIIA, IIIB, or IIIC) and ensure the encounter is not a subsequent or sequela phase.