S92.145K Nondisplaced dome fracture of left talus, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced dome fracture of left talus, subsequent encounter for fracture with nonunion

Summary

A nondisplaced dome fracture of the left talus is a break in the dome-shaped upper surface of the talus bone on the left side, where the bone fragments remain in their normal alignment. This injury affects the ankle joint, potentially disrupting weight-bearing and movement. The talus connects the foot to the lower leg and is critical for ankle function. The "subsequent encounter for fracture with nonunion" indicates this is a follow-up visit for a fracture that has not healed properly after an initial treatment period.

Causes

Direct trauma to the ankle, such as falls, sports injuries, or motor vehicle accidents, is the most common cause. High-impact forces or twisting motions can also lead to dome fractures, particularly in activities involving sudden stops or changes in direction. Nonunion may result from inadequate immobilization, poor blood supply to the bone, or other factors that impede healing.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer) or activities with a risk of ankle injury.
• Osteoporosis or other conditions that weaken bone density.
• Previous ankle or talus injuries.
• Improper footwear or inadequate protective gear during physical activities.
• Factors that impair bone healing, such as smoking or certain medical conditions.

Symptoms

• Persistent pain in the ankle or foot, especially during weight-bearing.
• Swelling and bruising around the injury site.
• Difficulty bearing weight or walking.
• Limited range of motion in the ankle joint.
• Possible instability or abnormal sensations in the foot.

Diagnosis

A healthcare provider will perform a physical examination to assess pain, swelling, and mobility. Imaging tests, such as X-rays or CT scans, are used to confirm the fracture and evaluate for nonunion. Additional tests may be ordered to assess blood flow or bone healing if nonunion is suspected.

Treatment Options

Treatment focuses on promoting bone healing and restoring function. Options may include immobilization with a cast or brace, physical therapy to improve strength and mobility, and in some cases, surgical intervention to stabilize the fracture or stimulate healing. Pain management and activity modification are also important components of care.

Prognosis and Follow-Up

The prognosis depends on the severity of the nonunion and the effectiveness of treatment. With appropriate management, many patients can achieve healing and return to normal activities, though recovery may be prolonged. Regular follow-up appointments are necessary to monitor healing progress and adjust treatment as needed.

Complications

• Chronic pain or instability in the ankle.
• Increased risk of arthritis in the ankle joint.
• Potential need for additional surgery if nonunion persists.
• Long-term mobility limitations.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use proper footwear and protective gear during sports or physical activities.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.
• Follow rehabilitation guidelines to optimize healing and prevent future injuries.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or inability to bear weight after an injury. Contact your healthcare provider if you have persistent pain, swelling, or difficulty walking following a fracture, as these may indicate nonunion or other complications.

Tips for Medical Coders

This code is used for a subsequent encounter for a nondisplaced dome fracture of the left talus with nonunion. Documentation should specify the fracture site (left talus), the fact that it is nondisplaced, and the presence of nonunion. Ensure the encounter is classified as "subsequent" and that the fracture is clearly documented as not having healed.