S82.264M Nondisplaced segmental fracture of shaft of right tibia, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Nondisplaced segmental fracture of shaft of right tibia, subsequent encounter for open fracture type I or II with nonunion

Summary

A nondisplaced segmental fracture of the shaft of the right tibia is a fracture involving two separate breaks in the main portion of the tibia (shinbone), with the bone fragments remaining in their normal anatomical alignment. This injury is classified as an open fracture type I or II, meaning the overlying skin is breached but the wound is typically small and clean. The "subsequent encounter" designation indicates this is a follow-up visit for the fracture, and "nonunion" refers to the failure of the bone to heal properly after an extended period.

Causes

Nondisplaced segmental fractures of the tibial shaft commonly occur due to direct trauma, such as motor vehicle accidents, falls from height, or high-impact sports injuries. Open fractures result when the force of the injury causes the bone to pierce the skin, creating an external wound. Nonunion may develop due to inadequate immobilization, poor blood supply to the fracture site, infection, or other factors that impede healing.

Risk Factors

• Participation in high-impact sports or activities
• Osteoporosis or other bone-weakening conditions
• Previous lower leg injuries
• Age-related bone density loss
• Lack of protective gear during physical activities
• Smoking or poor nutrition, which can impair bone healing

Symptoms

• Intense pain and swelling in the lower leg
• Visible deformity or irregularity in the shape of the shin
• Inability to bear weight on the affected leg
• Bruising and tenderness at the fracture site
• Open wound at the injury site (for type I or II open fractures)
• Persistent pain or instability at the fracture site, indicating nonunion

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity, along with imaging studies such as X-rays or CT scans to confirm the fracture pattern and assess for nonunion. The open wound is evaluated for size, cleanliness, and signs of infection. Additional tests, such as blood work, may be performed to rule out infection or assess healing status.

Treatment Options

Treatment focuses on addressing the nonunion and managing the open fracture. This may include surgical intervention, such as bone grafting or internal fixation, to promote healing. Antibiotics are often prescribed to prevent or treat infection. Immobilization with a cast or brace may be used to stabilize the fracture, and physical therapy is typically recommended to restore function once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and the effectiveness of treatment. With proper management, many patients achieve successful bone healing, though recovery may be prolonged. Follow-up visits are necessary to monitor healing progress, assess for complications, and adjust treatment as needed. Long-term outcomes may include residual pain or limited mobility, particularly if the nonunion is severe.

Complications

• Infection at the fracture site or open wound
• Delayed or failed bone healing (nonunion)
• Nerve or blood vessel damage
• Chronic pain or instability
• Post-traumatic arthritis
• Leg length discrepancy or deformity

Lifestyle & Prevention

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

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Increased pain, swelling, or redness at the fracture site.
• Signs of infection, such as fever, pus, or foul odor from the wound.
• Numbness, tingling, or weakness in the foot or ankle.
• Sudden inability to bear weight on the affected leg.
• New or worsening deformity.

Tips for Medical Coders

Document the fracture type (open I or II), the presence of nonunion, and the subsequent encounter status clearly. Include details about the fracture pattern (segmental, nondisplaced) and the affected side (right tibia). Note any complications, such as infection or delayed healing, as these may impact coding. Ensure documentation supports the nonunion diagnosis and the open fracture classification to justify the code assignment.