S59.031P Salter-Harris Type III physeal fracture of lower end of ulna, right arm, subsequent encounter for fracture with malunion

Name of the Condition

• Salter-Harris Type III physeal fracture of lower end of ulna, right arm, subsequent encounter for fracture with malunion

Summary

This condition involves a Salter-Harris Type III fracture of the growth plate (physeal) at the lower end of the ulna in the right arm, documented as a subsequent encounter for fracture with malunion. It affects the growth plate (physis) and extends into the epiphysis, typically occurring in children or adolescents. The fracture is associated with trauma to the forearm, particularly near the wrist, and is classified as having malunion during follow-up care.

Causes

Salter-Harris Type III physeal fractures often result from direct impact, such as a fall onto an outstretched hand, or forceful twisting of the forearm. These injuries may occur during activities involving sudden stops, collisions, or direct blows to the wrist or forearm area.

Risk Factors

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

Symptoms

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

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion. Imaging studies, such as X-rays or CT scans, are typically used to confirm the fracture type and assess for malunion. The diagnosis is based on the fracture pattern extending through the physis and into the epiphysis, with evidence of improper healing.

Treatment Options

Treatment may include immobilization with a cast or splint to stabilize the fracture. Surgical intervention, such as open reduction and internal fixation, may be necessary to correct malunion and restore joint alignment. Physical therapy is often recommended to improve strength and mobility during recovery.

Prognosis and Follow-Up

Prognosis depends on the severity of the malunion and the effectiveness of treatment. Regular follow-up appointments are necessary to monitor healing and assess for long-term complications, such as growth disturbances or joint dysfunction. Rehabilitation may be required to restore full function.

Complications

• Growth plate damage leading to limb length discrepancy or angular deformity.
• Chronic pain or stiffness in the wrist or forearm.
• Arthritis or joint instability due to improper healing.
• Nerve or blood vessel injury in severe cases.

Lifestyle & Prevention

• Use protective gear during sports or activities with a high risk of falls.
• Ensure proper technique and conditioning to reduce injury risk.
• Maintain bone health through adequate nutrition, including calcium and vitamin D.
• Avoid activities that place excessive stress on the forearm or wrist.

When to Seek Professional Help

Seek medical attention if there is severe pain, swelling, or deformity after an injury. Persistent symptoms, such as difficulty moving the wrist or hand, or signs of infection (e.g., redness, fever) should also prompt a healthcare evaluation.

Tips for Medical Coders

Document the presence of malunion and the subsequent encounter status clearly in the medical record. Ensure the fracture type (Salter-Harris Type III) and location (lower end of ulna, right arm) are accurately specified. Include details about the healing process and any interventions performed to support correct coding.