S82.141N Displaced bicondylar fracture of right tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Displaced bicondylar fracture of right tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Summary

A displaced bicondylar fracture of the right tibia involves a break in both condyles of the tibia (shinbone) near the knee, with the bone fragments misaligned. This is an open fracture, meaning the skin over the injury is breached, and it is classified as type IIIA, IIIB, or IIIC, indicating severe soft tissue damage. The fracture has not healed (nonunion), and this encounter is subsequent, meaning it follows an earlier treatment phase. The injury affects the upper tibia and may involve the knee joint.

Causes

High-impact trauma, such as motor vehicle accidents, falls from significant heights, or severe sports injuries, is the primary cause. The force applied to the knee joint disrupts the bone structure, leading to the fracture, skin penetration, and failure of the bone to heal. Open fractures may also result from inadequate protective measures during trauma.

Risk Factors

Risk factors include participation in high-impact activities, osteoporosis or weakened bones, advanced age, and occupations with increased physical injury risk. Factors contributing to nonunion include poor blood supply, infection, or inadequate initial treatment.

Symptoms

• Intense pain at the knee, worsening with movement or weight-bearing
• Swelling, bruising, and visible wound at the fracture site
• Inability to bear weight or move the knee
• Possible deformity or instability of the knee joint
• Persistent pain or instability indicating nonunion

Diagnosis

Diagnosis begins with a physical exam to assess pain, swelling, and wound characteristics. Imaging, such as X-rays or CT scans, confirms the fracture pattern, nonunion, and soft tissue damage. Additional tests may evaluate infection or blood supply issues. Documentation must specify the fracture type (IIIA, IIIB, or IIIC) and nonunion status.

Treatment Options

Treatment focuses on addressing nonunion and severe soft tissue damage. Options may include surgical intervention to realign the bone, bone grafting, or external fixation. Wound care and infection management are critical for open fractures. Rehabilitation follows to restore function.

Prognosis and Follow-Up

Prognosis depends on the severity of soft tissue damage, infection risk, and response to treatment. Follow-up includes regular imaging to monitor healing and functional assessments. Long-term recovery may require ongoing therapy or mobility aids.

Complications

• Infection at the fracture site
• Persistent nonunion or malunion
• Nerve or blood vessel damage
• Chronic pain or instability
• Limited mobility or arthritis

Lifestyle & Prevention

Avoid high-impact activities until cleared by a provider. Use protective gear during sports or work. Maintain bone health through diet and exercise to reduce fracture risk. Follow rehabilitation plans to optimize recovery.

When to Seek Professional Help

Seek care if pain worsens, swelling increases, or new symptoms (e.g., fever, wound drainage) develop. Prompt evaluation is needed for signs of infection or failed healing.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and nonunion status clearly. Specify "subsequent encounter" to indicate follow-up care. Ensure imaging and clinical notes support the open fracture classification and nonunion diagnosis.