S59.239 Salter-Harris Type III physeal fracture of lower end of radius, unspecified arm

Name of the Condition

• Salter-Harris Type III physeal fracture of lower end of radius, unspecified arm

Summary

This condition refers to a Salter-Harris Type III fracture involving the growth plate (physeal) at the lower end of the radius bone, typically affecting children and adolescents. The injury involves a fracture that extends through the growth plate and into the joint surface, often resulting from trauma to the forearm near the wrist joint. The term "unspecified arm" indicates the side of the body is not documented.

Causes

Salter-Harris Type III physeal fractures commonly occur due to direct impact, such as a fall onto an outstretched hand, or forceful twisting of the forearm. These injuries are frequently associated with activities involving sudden stops, collisions, or high-impact forces.

Risk Factors

• Children and adolescents are at higher risk due to the presence of growth plates.
• Participation in contact sports or activities with a high likelihood of falls increases risk.
• Certain genetic or metabolic conditions affecting bone development may also elevate susceptibility.

Symptoms

• Pain and swelling near the wrist or forearm.
• Difficulty moving the wrist or hand.
• Tenderness to touch at the fracture site.
• Possible visible deformity or bruising around the affected area.

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion. Imaging tests, especially X-rays, to visualize the fracture pattern and confirm the diagnosis. Additional imaging, such as CT or MRI, may be used if detailed joint or soft tissue assessment is needed.

Treatment Options

• Immobilization with a cast or splint to allow healing.
• Closed reduction (manual realignment) if the fracture is displaced.
• Surgical intervention for unstable or severely displaced fractures to restore joint alignment.
• Pain management and activity modification during recovery.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, alignment after treatment, and potential growth plate involvement. Regular follow-up with imaging is often recommended to monitor healing and assess for growth disturbances. Most fractures heal well with appropriate care, but long-term monitoring may be necessary.

Complications

• Growth plate damage leading to limb length discrepancy or angular deformity.
• Joint stiffness or reduced range of motion.
• Early-onset arthritis if the joint surface is affected.
• Nonunion or malunion of the fracture.

Lifestyle & Prevention

• Use protective gear during sports or high-risk activities.
• Ensure proper technique and supervision in activities with fall risks.
• Maintain bone health through adequate nutrition (e.g., calcium, vitamin D).
• Avoid overuse or repetitive stress on the wrist and forearm in children.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, obvious deformity, inability to move the wrist or hand, or signs of nerve or vascular compromise (e.g., numbness, coldness). Follow up with a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the specific arm (right or left) when known, as this affects code assignment. For unspecified arm, use this code. Ensure documentation supports the Salter-Harris Type III classification, including fracture details and clinical findings. Verify that the injury is localized to the lower end of the radius and involves the growth plate and joint surface.