S82.301N Unspecified fracture of lower end of right tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Unspecified fracture of lower end of right tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Summary

This condition describes a fracture at the lower end of the right tibia, a major weight-bearing bone in the lower leg, where the fracture is open (type IIIA, IIIB, or IIIC) and has failed to heal (nonunion). The subsequent encounter indicates ongoing care after initial treatment. Open fractures involve skin or soft tissue damage, increasing infection risk, while nonunion means the bone has not properly fused. The lower tibia is part of the ankle joint, so injuries here can affect stability and mobility.

Causes

Fractures of the lower tibia typically result from direct trauma, such as falls, sports injuries, or motor vehicle accidents. High-impact forces or twisting motions can also cause these injuries. Underlying bone weakness from conditions like osteoporosis may increase susceptibility. Open fractures occur when the trauma breaks the skin, and nonunion may develop due to poor blood supply, infection, or inadequate initial stabilization.

Risk Factors

• Participation in high-impact sports or activities with a risk of falls
• Osteoporosis or other bone-weakening conditions
• Advanced age, which can reduce bone density
• Previous lower leg fractures or related injuries
• Poor nutrition or smoking, which impair bone healing
• Inadequate initial fracture management or infection

Symptoms

• Persistent pain and tenderness at the fracture site
• Swelling and bruising around the affected area
• Difficulty bearing weight or walking
• Possible visible deformity or instability
• Open wound at the fracture site (for type IIIA, IIIB, or IIIC)
• Lack of healing progress over time (nonunion)

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays or CT scans, are used to confirm the fracture, assess nonunion, and evaluate soft tissue damage. Blood tests may check for infection. The fracture type (IIIA, IIIB, or IIIC) is determined by the extent of soft tissue injury and contamination.

Treatment Options

Treatment focuses on stabilizing the fracture, promoting healing, and managing infection. Options may include surgery to realign and fix the bone (e.g., internal fixation), bone grafting to stimulate healing, and antibiotics for open fractures. Physical therapy helps restore function once healing progresses. Nonunion may require additional interventions, such as electrical stimulation or further surgery.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, infection risk, and response to treatment. Nonunion and open fractures carry higher risks of complications, including chronic pain or disability. Regular follow-up with imaging and clinical assessments monitors healing. Long-term mobility may be affected, and some patients may need assistive devices.

Complications

• Infection at the fracture site
• Chronic pain or instability
• Delayed or failed healing (nonunion)
• Nerve or blood vessel damage
• Arthritis in the ankle joint
• Need for additional surgeries

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Maintain bone health through a balanced diet rich in calcium and vitamin D
• Quit smoking, as it impairs bone healing
• Use protective gear during sports or activities with fall risks
• Follow post-treatment guidelines to support recovery

When to Seek Professional Help

Seek immediate care if you experience severe pain, swelling, or an open wound at the fracture site. Contact a healthcare provider if pain worsens, or if you notice signs of infection (e.g., redness, pus, fever). Follow up as scheduled to monitor healing and address complications.

Tips for Medical Coders

This code is used for a subsequent encounter of an open fracture (type IIIA, IIIB, or IIIC) of the lower right tibia with nonunion. Document the fracture type, nonunion status, and encounter timing clearly. Ensure the open fracture classification (IIIA, IIIB, or IIIC) is specified, as this affects coding and reflects the severity of soft tissue damage.