S82.461M Displaced segmental fracture of shaft of right fibula, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Displaced segmental fracture of shaft of right fibula, subsequent encounter for open fracture type I or II with nonunion
• ICD-10 Code: S82.461M

Summary

A displaced segmental fracture of the shaft of the right fibula is a break in the middle portion of the fibula, the smaller bone in the lower leg, where the bone is broken into two or more separate pieces and the fragments are out of alignment. This is an open fracture (type I or II), meaning the skin is pierced or there is a wound communicating with the fracture site. The term "subsequent encounter" indicates this is a follow-up visit for the fracture, and "nonunion" means the bone has failed to heal properly after an expected time frame.

Causes

Most commonly caused by direct trauma or high-force impact to the leg, such as from falls, sports injuries, or motor vehicle accidents. Twisting motions or rotational forces can also lead to this type of fracture. Open fractures may result from the same mechanisms, with additional skin penetration from the injury force or bone fragments. Nonunion can occur due to inadequate immobilization, poor blood supply, infection, or other factors that impede healing.

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.
• Activities with a high risk of falls or direct trauma to the leg.
• Conditions that impair bone healing, such as diabetes or smoking.

Symptoms

• Persistent pain and swelling in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Possible deformity or instability of the leg structure.
• Visible wound or opening at the fracture site (for open fractures).
• Lack of healing progress over time (indicating nonunion).

Diagnosis

Diagnosis involves a physical examination by a healthcare professional to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays, are typically used to confirm the fracture, determine its extent, and evaluate for nonunion. Additional tests, like CT scans or bone scans, may be ordered to assess bone healing and rule out infection.

Treatment Options

Treatment focuses on promoting bone healing and addressing the nonunion. Options may include surgical intervention, such as bone grafting or internal fixation, to stabilize the fracture and encourage union. Antibiotics may be prescribed if infection is present. Physical therapy is often recommended to restore function and strength once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient’s overall health. Nonunion may require additional interventions, and recovery can take several months. Regular follow-up appointments are necessary to monitor healing and adjust treatment as needed.

Complications

• Persistent nonunion or delayed healing.
• Infection at the fracture site.
• Nerve or blood vessel damage.
• Chronic pain or instability.
• Limited mobility or functional impairment.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Follow prescribed weight-bearing restrictions.
• Maintain a healthy 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 with fall risks.

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, pus, fever) or if pain persists without improvement.

Tips for Medical Coders

Document the encounter as a subsequent visit for an open fracture type I or II with nonunion. Ensure the record specifies the fracture type (open), the encounter stage (subsequent), and the presence of nonunion. Include details about the fracture’s location (shaft of right fibula) and any treatments or complications.