S52.529K Torus fracture of lower end of unspecified radius, subsequent encounter for fracture with nonunion

Name of the Condition

• Torus fracture of lower end of unspecified radius, subsequent encounter for fracture with nonunion

Summary

A torus fracture of the lower end of the unspecified radius is an incomplete fracture involving the distal portion of the radius bone, near the wrist. This injury typically presents as a buckling or compression of the bone cortex without complete displacement, often occurring in children due to their more flexible bone structure. The fracture is generally stable and may result in localized pain and swelling but maintains bone alignment. This code specifies a subsequent encounter for a fracture with nonunion, indicating the fracture has not healed properly after an initial injury.

Causes

Usually results from trauma such as a fall onto an outstretched hand, direct impact to the wrist, or a forceful bending injury. The mechanism involves axial loading or a sudden twist applied to the wrist, causing the bone to buckle rather than break completely. Nonunion may develop if the fracture fails to heal due to inadequate immobilization, poor blood supply, or other factors.

Risk Factors

• Higher incidence in children and adolescents due to developing bone structure.
• Activities with a risk of falls, such as sports or play.
• Lack of protective gear during high-impact activities.
• Factors contributing to nonunion, such as smoking, diabetes, or inadequate initial treatment.

Symptoms

• Persistent localized pain and swelling at the wrist.
• Tenderness to touch the affected area.
• Limited wrist movement or stiffness.
• Possible visible deformity in severe cases.
• Symptoms that do not improve with standard healing timelines.

Diagnosis

Physical examination to assess pain, swelling, and range of motion. Imaging tests, primarily X-rays, to confirm the fracture type and rule out other injuries. The torus fracture appears as a buckled or compressed area on imaging, and nonunion is identified by the absence of healing progress over time. Additional imaging, such as CT scans, may be used to evaluate bone union.

Treatment Options

• Immobilization with a cast or splint to support healing and limit movement.
• Surgical intervention, such as bone grafting or internal fixation, to promote union.
• Physical therapy to restore strength and mobility after healing.
• Pain management with medications or other modalities.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and the effectiveness of treatment. Most fractures with nonunion can heal with appropriate intervention, but recovery may be prolonged. Regular follow-up with imaging is necessary to monitor healing progress. Long-term outcomes are generally good with proper management.

Complications

• Persistent pain or functional impairment.
• Delayed union or complete nonunion.
• Arthritis or stiffness in the wrist joint.
• Need for additional surgical procedures.

Lifestyle & Prevention

• Use protective gear during high-impact activities.
• Maintain a healthy lifestyle to support bone healing, including proper nutrition and avoiding smoking.
• Follow post-injury care instructions to reduce the risk of nonunion.
• Engage in gradual, supervised physical therapy to restore function.

When to Seek Professional Help

Seek medical attention if pain or swelling worsens, movement becomes increasingly limited, or symptoms persist beyond expected healing timelines. Immediate care is needed for severe pain, visible deformity, or signs of infection.

Tips for Medical Coders

This code is used for a subsequent encounter for a torus fracture of the lower end of the unspecified radius with nonunion. Document the encounter type (subsequent) and the presence of nonunion clearly. Ensure the fracture site (unspecified radius) and the nature of the fracture (torus) are accurately recorded. Follow guidelines for coding subsequent encounters and nonunion conditions.