S99.239 Salter-Harris Type III physeal fracture of phalanx of unspecified toe

Name of the Condition

• Salter-Harris Type III physeal fracture of phalanx of unspecified toe

Summary

This condition involves a fracture affecting the growth plate (physis) of a toe phalanx, classified as Salter-Harris Type III. This type of fracture occurs when the fracture line extends through the growth plate and into the epiphysis (the end of the bone), typically in children or adolescents, and requires evaluation to ensure proper healing and growth.

Causes

Direct trauma or injury to the toe, such as falls, sports-related impacts, or accidents, can disrupt the growth plate. Sudden force applied to the phalanges, including stubbing, crushing, or twisting, may lead to this type of fracture.

Risk Factors

• Age: Children and adolescents, as their growth plates are still developing and more susceptible to injury.
• High-impact activities: Participation in sports like running, jumping, or contact sports.
• Previous injuries: Prior damage to the toes or surrounding structures may increase vulnerability.
• Poor footwear: Shoes that do not fit properly or lack support can increase toe injury risk.

Symptoms

• Pain and swelling localized to the affected toe.
• Difficulty bearing weight or walking on the foot.
• Limited range of motion in the toe.
• Visible bruising or deformity in severe cases.

Diagnosis

Physical examination to assess pain, swelling, and function is typically performed. Imaging studies, such as X-rays, are used to confirm the fracture type and extent, focusing on the growth plate and epiphysis. Clinical correlation with the injury mechanism helps guide diagnosis.

Treatment Options

Treatment may include immobilization with a splint or cast to stabilize the fracture. Pain management and activity modification are often recommended. In some cases, surgical intervention may be necessary to realign the bone and ensure proper healing, especially if the joint surface is involved.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture and adherence to treatment. Most cases heal well with appropriate care, but regular follow-up is important to monitor growth and joint function. Long-term outcomes are generally favorable when managed promptly.

Complications

Potential complications include growth disturbances, joint stiffness, or malunion if the fracture is not properly aligned. In rare cases, avascular necrosis of the epiphysis may occur, affecting bone development.

Lifestyle & Prevention

Wearing properly fitting, supportive footwear during activities can reduce injury risk. Avoiding high-impact sports without proper protection and practicing safe movement techniques may help prevent toe injuries. Strengthening exercises for the foot and ankle can improve stability.

When to Seek Professional Help

Seek medical attention if there is severe pain, swelling, or inability to bear weight after a toe injury. Visible deformity, numbness, or discoloration also warrant prompt evaluation to rule out serious fractures or complications.

Tips for Medical Coders

Document the specific toe involved (if known) and the mechanism of injury. For unspecified toe, use this code. Ensure clinical documentation supports the Salter-Harris Type III classification, including details on growth plate and epiphysis involvement.