S82.462R Displaced segmental fracture of shaft of left fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

• Displaced segmental fracture of shaft of left fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
• ICD-10 Code: S82.462R

Summary

A displaced segmental fracture of the shaft of the left fibula is a break in the long, thin bone on the lateral side of the lower leg, where the bone is broken into two or more separate pieces and the fragments are out of alignment. This injury involves the middle portion of the fibula and is classified as an open fracture (type IIIA, IIIB, or IIIC), meaning the skin is broken and the wound is severe. The term "subsequent encounter" indicates this is a follow-up visit for treatment of the fracture, and "malunion" refers to improper healing where the bone fragments have not aligned correctly.

Causes

Most commonly caused by high-energy trauma, such as motor vehicle accidents, falls from significant height, or direct impact to the leg. Twisting injuries or severe rotational forces can also lead to this type of fracture. Open fractures may result from trauma that penetrates the skin, increasing the risk of infection and complicating healing.

Risk Factors

• Participation in high-impact sports or activities with risk of falls.
• Osteoporosis or reduced bone density, which increases fragility.
• Advanced age, which may weaken bone strength.
• Previous leg injuries or surgeries that compromise bone integrity.
• Poor nutrition or smoking, which can impair bone healing.

Symptoms

• Persistent pain and swelling in the lower leg.
• Difficulty bearing weight on the affected leg.
• Bruising or tenderness around the injured area.
• Visible deformity or instability of the leg structure.
• Possible signs of malunion, such as uneven leg length or misalignment.

Diagnosis

Diagnosis involves a physical examination by a healthcare professional to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays or CT scans, are typically used to confirm the fracture, evaluate malunion, and determine the extent of the open wound. Additional tests may be performed to check for infection or assess bone healing.

Treatment Options

Treatment focuses on realigning the bone fragments, managing the open wound, and promoting proper healing. Options may include surgical intervention to stabilize the fracture (e.g., internal fixation with plates or screws) and wound care to prevent infection. Physical therapy is often recommended to restore function and strength after healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the presence of malunion. Follow-up care is essential to monitor healing, address complications, and adjust treatment as needed. Long-term outcomes may include reduced mobility or chronic pain if malunion is not corrected.

Complications

• Infection at the site of the open wound.
• Delayed or improper healing (malunion).
• Nerve or blood vessel damage.
• Chronic pain or instability.
• Limited range of motion in the ankle or knee.

Lifestyle & Prevention

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

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after an injury. Contact a healthcare provider if you notice signs of infection (e.g., redness, pus, fever) or if pain persists despite treatment.

Tips for Medical Coders

When coding S82.462R, ensure documentation specifies the subsequent encounter, open fracture type (IIIA, IIIB, or IIIC), and malunion. Verify that the fracture is segmental and displaced, and that the fibula shaft is involved. Confirm the left side and that the encounter is for treatment of the fracture with malunion.