S82.231N Displaced oblique fracture of shaft of right tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

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

Summary

A displaced oblique fracture of the shaft of the right tibia is a break that runs diagonally across the main portion of the tibia (shinbone) on the right side, with the bone fragments shifted out of their normal alignment. This code applies to a subsequent encounter for an open fracture classified as type IIIA, IIIB, or IIIC, where the fracture has failed to heal (nonunion). Open fractures involve a break in the skin, and type III indicates severe soft tissue damage, contamination, or vascular injury. The term "subsequent encounter" denotes ongoing care for the fracture, which has not united after an expected healing period.

Causes

Displaced oblique fractures of the tibial shaft commonly result from direct trauma, such as falls, motor vehicle accidents, or high-impact injuries. Open fractures may occur when the bone pierces the skin during the injury or from external forces applied to the leg. Nonunion can develop due to inadequate immobilization, poor blood supply, infection, or excessive movement at the fracture site during healing.

Risk Factors

• High-impact sports or activities.
• Osteoporosis or other bone-weakening conditions.
• Previous lower leg injuries or surgeries.
• Poor nutrition or smoking, which impair bone healing.
• Inadequate initial fracture management.

Symptoms

• Persistent pain at the fracture site, often worsening with activity.
• Swelling, bruising, or tenderness along the shin.
• Difficulty bearing weight or walking.
• Visible deformity or misalignment.
• Possible signs of infection, such as redness, warmth, or drainage (in open fractures).
• Delayed healing or no improvement in symptoms over time.

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, CT scans, or MRI, are used to confirm the fracture pattern, displacement, and nonunion. For open fractures, evaluation of soft tissue damage and potential infection is critical. The classification of the open fracture (IIIA, IIIB, or IIIC) is determined by the extent of soft tissue injury, contamination, and vascular involvement.

Treatment Options

Treatment focuses on stabilizing the fracture and promoting healing. Options may include surgical intervention, such as internal or external fixation, to realign and secure the bone. For open fractures, wound care and infection management are essential. Nonunion may require additional procedures, such as bone grafting or revision surgery. Rehabilitation, including physical therapy, is often necessary to restore function and strength.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, soft tissue damage, and response to treatment. Nonunion and open fractures carry a higher risk of complications, including infection or chronic pain. Regular follow-up with imaging is needed to monitor healing. Long-term outcomes may include residual stiffness, weakness, or the need for further intervention.

Complications

• Infection, particularly in open fractures.
• Delayed or failed healing (nonunion).
• Chronic pain or arthritis.
• Nerve or vascular damage.
• Malunion (improper healing in a misaligned position).
• Limited mobility or functional impairment.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Follow prescribed weight-bearing restrictions and immobilization.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Quit smoking, as it impairs healing.
• Use protective gear during sports or activities to reduce injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Severe pain, swelling, or deformity.
• Open wounds near the fracture site.
• Signs of infection, such as fever, redness, or drainage.
• Numbness, tingling, or coldness in the foot or toes.
• Worsening pain or inability to bear weight.

Tips for Medical Coders

Document the fracture type (oblique), location (shaft of right tibia), and displacement. Specify the open fracture classification (IIIA, IIIB, or IIIC) and confirm nonunion. For subsequent encounters, include details of prior treatments and the reason for ongoing care. Ensure documentation supports the nonunion diagnosis and the specific open fracture type to justify the code.