S82.424R Nondisplaced transverse fracture of shaft of right fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

• Nondisplaced transverse fracture of shaft of right fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
• ICD-10 Code: S82.424R

Summary

A nondisplaced transverse fracture of the shaft of the right 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, and the fracture is classified as open (type IIIA, IIIB, or IIIC) with malunion, indicating the bone has healed in a non-anatomic position. This is a subsequent encounter, meaning it represents follow-up care for the injury after the initial treatment phase.

Causes

Most commonly caused by direct trauma or high-impact forces to the leg, such as falls, sports injuries, or motor vehicle accidents. Open fractures occur when the broken bone pierces the skin or when external force causes a wound that communicates with the fracture site. Malunion may result from inadequate initial treatment, poor bone healing, or excessive movement during recovery.

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.
• Situations with a high risk of skin penetration, such as falls onto sharp objects.
• Delayed or inadequate initial fracture management.

Symptoms

• Persistent pain, swelling, or tenderness in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or discoloration around the injured area.
• Visible deformity or instability of the leg structure.
• Possible signs of infection (e.g., redness, warmth, or drainage) if the fracture was open.

Diagnosis

Diagnosis involves a physical examination by a healthcare professional to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays or CT scans, are typically used to confirm the fracture, evaluate malunion, and assess bone healing. Additional tests may be performed to check for infection or complications related to the open fracture.

Treatment Options

Treatment focuses on managing symptoms, promoting proper healing, and addressing malunion. Options may include pain management, physical therapy to restore function, and possibly surgical intervention to realign the bone. Open fractures may require wound care or antibiotics to prevent infection. The specific approach depends on the severity of the malunion and the patient’s overall health.

Prognosis and Follow-Up

Prognosis varies based on the extent of malunion and the patient’s response to treatment. Most patients can expect improved function with appropriate care, though some may experience long-term stiffness or weakness. Follow-up appointments are essential to monitor healing, adjust treatment, and address any complications. Rehabilitation may be necessary to restore mobility and strength.

Complications

• Chronic pain or discomfort.
• Limited range of motion or stiffness.
• Increased risk of future fractures due to weakened bone.
• Nerve or vascular damage from the initial injury or malunion.
• Infection, particularly if the fracture was open.
• Difficulty with weight-bearing or walking.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or activities with a fall risk.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.
• Follow post-treatment instructions carefully to promote proper healing.
• Attend all follow-up appointments to monitor progress.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after an injury. Contact your healthcare provider if you notice signs of infection (e.g., redness, drainage, or fever) or if symptoms worsen despite treatment. Follow up with your provider if you have difficulty bearing weight or experience persistent pain.

Tips for Medical Coders

When coding S82.424R, ensure documentation specifies the fracture as nondisplaced, transverse, and involving the shaft of the right fibula. Confirm the encounter is subsequent (not initial) and that the open fracture is classified as type IIIA, IIIB, or IIIC with malunion. Documentation should clearly indicate the fracture type, healing status, and any complications to support accurate coding.