S82.455K Nondisplaced comminuted fracture of shaft of left fibula, subsequent encounter for closed fracture with nonunion

Name of the Condition

• Nondisplaced comminuted fracture of shaft of left fibula, subsequent encounter for closed fracture with nonunion
• ICD-10-CM Code: S82.455K

Summary

A nondisplaced comminuted fracture of the shaft of the left fibula is a bone injury where the fibula is broken into multiple pieces but remains in its normal anatomical alignment. This code represents a subsequent encounter for a closed fracture that has developed nonunion, meaning the bone has failed to heal properly after an initial injury.

Causes

This fracture typically results from direct trauma to the leg, such as a fall, sports injury, or motor vehicle accident, which causes the bone to shatter into several pieces without shifting out of place. Nonunion may occur due to inadequate immobilization, poor blood supply, infection, or other factors that impede healing.

Risk Factors

• Participation in high-impact sports or activities
• Osteoporosis or conditions that weaken bone density
• Advanced age, which may reduce bone strength
• Previous leg injuries or surgeries
• Smoking or poor nutrition, which can affect bone healing

Symptoms

• Persistent pain and tenderness along the fibula
• Swelling and bruising around the lower leg
• Difficulty bearing weight on the affected leg
• Possible deformity or instability of the leg structure
• Lack of improvement in symptoms over time, indicating nonunion

Diagnosis

Diagnosis involves a physical examination to assess tenderness, swelling, and deformity. Imaging tests, such as X-rays, are typically used to confirm the fracture and determine the presence of nonunion. Additional tests, like CT scans or bone scans, may be performed to evaluate bone healing and blood supply.

Treatment Options

• Immobilization using a cast or brace to maintain bone alignment
• Surgical intervention, such as bone grafting or internal fixation, to promote healing
• Pain management with medications
• Physical therapy to restore mobility and strength after treatment
• Monitoring for signs of healing or complications

Prognosis and Follow-Up

The prognosis depends on the severity of the nonunion and the effectiveness of treatment. Follow-up care is essential to monitor healing progress, which may include regular imaging and adjustments to the treatment plan. Full recovery can take several months, and some patients may experience long-term limitations in mobility.

Complications

• Chronic pain or discomfort
• Persistent nonunion requiring additional treatment
• Infection, particularly if surgery is performed
• Limited mobility or functional impairment
• Increased risk of future fractures in the affected area

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Maintain a balanced diet rich in calcium and vitamin D to support bone health
• Quit smoking, as it can impede bone healing
• Use protective equipment during sports or activities to reduce injury risk
• Follow post-treatment guidelines to promote proper healing

When to Seek Professional Help

Seek medical attention if you experience persistent pain, swelling, or difficulty bearing weight on the affected leg. Contact a healthcare provider immediately if you notice signs of infection, such as redness, warmth, or drainage from the injury site.

Tips for Medical Coders

When coding for S82.455K, ensure documentation supports the subsequent encounter for a closed fracture with nonunion. Verify that the fracture is nondisplaced and comminuted, and that the encounter is not the initial treatment. Document any imaging results or clinical findings that confirm nonunion to support the code assignment.