S92.152A Displaced avulsion fracture (chip fracture) of left talus, initial encounter for closed fracture

Name of the Condition

• Displaced avulsion fracture (chip fracture) of left talus, initial encounter for closed fracture

Summary

A displaced avulsion fracture (chip fracture) of the left talus is a type of ankle injury where a small piece of bone is pulled away from the talus due to ligament or tendon tension. This fracture is classified as closed (no skin break) and occurs during the initial encounter for treatment. The talus, a key bone in the ankle joint, supports weight-bearing and movement, and displacement may affect joint alignment or stability.

Causes

Direct trauma to the ankle, such as falls, sports injuries, or twisting motions, is the primary cause. High-impact forces or sudden stops can strain ligaments or tendons, leading to bone avulsion. Motor vehicle accidents or repetitive stress in activities like running may also contribute.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer) or activities with ankle twisting risks.
• Osteoporosis or reduced bone density.
• Previous ankle or talus injuries.
• Improper footwear or inadequate protective gear during physical activities.

Symptoms

• Sudden, severe pain in the ankle or foot.
• Swelling and bruising around the injury site.
• Difficulty bearing weight or walking.
• Limited range of motion in the ankle joint.
• Possible deformity or abnormal positioning of the foot.

Diagnosis

A healthcare provider will perform a physical examination to assess pain, swelling, and mobility. Imaging studies, such as X-rays or CT scans, are typically used to confirm the fracture, assess displacement, and rule out other injuries. The closed nature of the fracture is determined by the absence of skin penetration.

Treatment Options

Treatment depends on the severity of displacement and symptoms. Conservative management may include rest, ice, compression, elevation (RICE), and immobilization with a cast or brace. Pain management with medications may be recommended. Severe cases may require surgical intervention to realign and stabilize the bone fragment.

Prognosis and Follow-Up

Most avulsion fractures heal with proper treatment, but recovery time varies based on fracture severity and treatment approach. Follow-up appointments are necessary to monitor healing, assess mobility, and adjust treatment as needed. Physical therapy may be recommended to restore strength and function.

Complications

Potential complications include nonunion (failure to heal), malunion (improper healing), chronic pain, or arthritis in the ankle joint. Nerve or blood vessel damage is rare but possible with severe displacement.

Lifestyle & Prevention

Avoid high-impact activities until cleared by a healthcare provider. Wear supportive footwear and use protective gear during sports. Strengthen ankle muscles through exercises to improve stability and reduce injury risk.

When to Seek Professional Help

Seek immediate medical attention for severe pain, inability to bear weight, visible deformity, or signs of infection (e.g., redness, fever). Prompt evaluation is important to prevent complications and ensure proper healing.

Tips for Medical Coders

Document the laterality (left talus), displacement status, and encounter type (initial for closed fracture) to accurately assign S92.152A. Ensure clinical notes specify the fracture as closed and the encounter as initial to meet coding guidelines.