S52.322K Displaced transverse fracture of shaft of left radius, subsequent encounter for closed fracture with nonunion

Name of the Condition

Displaced transverse fracture of shaft of left radius, subsequent encounter for closed fracture with nonunion

Summary

A displaced transverse fracture of the shaft of the left radius is a horizontal break in the long, outer bone of the forearm (radius) where the broken fragments are misaligned. This injury is classified as closed, meaning the skin remains intact, and it represents a subsequent encounter for treatment due to nonunion, where the fracture has failed to heal properly. The condition typically results from trauma and may affect arm function depending on the degree of displacement and associated soft tissue damage.

Causes

This fracture commonly occurs due to direct trauma, such as falls onto an outstretched arm, direct blows to the forearm, or accidents involving twisting forces at the wrist or elbow. High-impact events like motor vehicle collisions or sports injuries can also cause the bone to break in a transverse pattern. Nonunion may develop if the fracture does not heal adequately, often due to inadequate immobilization, poor blood supply, or infection.

Risk Factors

• Participation in contact sports or activities with a high risk of falls
• Osteoporosis or weakened bone density
• Advanced age, which increases fracture susceptibility
• Previous forearm or wrist injuries
• Occupations or hobbies involving repetitive stress or heavy lifting
• Smoking, which impairs bone healing
• Poor nutrition, particularly low calcium or vitamin D intake

Symptoms

• Persistent pain at the fracture site, often worsening with activity
• Swelling, bruising, or deformity of the forearm
• Inability to move the wrist or forearm fully
• Visible bone displacement (if severe)
• Numbness or tingling in the hand or fingers
• Delayed healing or lack of improvement over time

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion, followed by imaging studies such as X-rays or CT scans to confirm the fracture type, displacement, and nonunion. Additional tests, like bone scans or MRI, may be used to evaluate blood flow and healing potential. The clinician will also review the patient’s medical history, including prior treatments and healing progress.

Treatment Options

Treatment focuses on promoting healing and restoring function. Options may include immobilization with a cast or brace, surgical intervention (e.g., internal fixation with plates or screws), bone grafting to stimulate healing, or electrical stimulation. Physical therapy is often recommended to improve strength and mobility once healing progresses. Pain management and monitoring for complications are also key components of care.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion, patient health, and treatment response. With appropriate intervention, many patients achieve successful healing and restored function, though recovery may be prolonged. Regular follow-up appointments, including imaging, are necessary to monitor progress. Long-term outcomes may include residual stiffness or weakness, which can be addressed with rehabilitation.

Complications

• Chronic pain or discomfort
• Persistent nonunion or delayed healing
• Infection (if surgical intervention is required)
• Nerve or blood vessel damage
• Reduced range of motion or arthritis in the wrist or elbow
• Need for additional surgeries if initial treatment fails

Lifestyle & Prevention

• Avoid high-risk activities or use protective gear during sports
• Maintain bone health through a balanced diet rich in calcium and vitamin D
• Engage in weight-bearing exercises to strengthen bones
• Quit smoking to improve healing potential
• Follow post-injury care instructions carefully to support recovery

When to Seek Professional Help

Seek medical attention if you experience severe or worsening pain, swelling, or deformity, or if you notice numbness, tingling, or changes in skin color in the hand or fingers. Prompt evaluation is also recommended if the fracture does not show signs of healing over time or if you develop new symptoms after treatment.

Tips for Medical Coders

This code (S52.322K) is used for a subsequent encounter for a closed fracture of the left radius shaft with nonunion. Documentation should clearly indicate the fracture type (displaced transverse), location (left radius shaft), encounter type (subsequent), and the presence of nonunion. Ensure the record specifies that the fracture is closed (skin intact) and that nonunion has been diagnosed, as these details are critical for accurate coding.