S52.325Q Nondisplaced transverse fracture of shaft of left radius, subsequent encounter for open fracture type I or II with malunion

Name of the Condition

Nondisplaced transverse fracture of shaft of left radius, subsequent encounter for open fracture type I or II with malunion

Summary

A nondisplaced transverse fracture of the shaft of the left radius is a horizontal break in the long, outer bone of the forearm (radius) where the bone fragments remain aligned. This specific code applies to a subsequent encounter for an open fracture type I or II that has healed with malunion, meaning the bone has healed in a misaligned position. The injury typically results from trauma and requires ongoing management to address functional or cosmetic concerns related to the malunion.

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. Malunion may develop if the fracture was not properly aligned during initial treatment or if healing occurred without adequate immobilization.

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
• Inadequate initial fracture management or immobilization

Symptoms

• Persistent pain or discomfort at the fracture site
• Swelling, bruising, or tenderness around the forearm
• Difficulty moving the arm or wrist due to malalignment
• Visible deformity or abnormal bone contour
• Numbness or tingling in the hand or fingers (if nerve involvement)
• Reduced grip strength or functional impairment

Diagnosis

Diagnosis involves a physical examination to assess alignment, range of motion, and tenderness. Imaging studies, such as X-rays or CT scans, are used to confirm the malunion and evaluate bone healing. The open fracture type (I or II) is determined by the size of the skin wound and degree of contamination. Clinical history, including prior treatment and healing timeline, is critical to classify the encounter as "subsequent."

Treatment Options

Treatment focuses on managing symptoms and addressing functional limitations from malunion. Options may include physical therapy to improve strength and mobility, pain management, or surgical intervention (e.g., osteotomy) to realign the bone. Open fractures require monitoring for infection, and malunion may be corrected if it causes significant impairment. Immobilization or bracing may be used to support healing.

Prognosis and Follow-Up

Prognosis depends on the severity of malunion and functional impact. Most patients recover with conservative management, but malunion can lead to long-term stiffness or weakness. Follow-up appointments monitor healing, functional recovery, and the need for further intervention. Regular imaging may be used to assess bone alignment and guide treatment adjustments.

Complications

• Chronic pain or discomfort
• Reduced range of motion or stiffness
• Nerve or vascular damage from malalignment
• Increased risk of future fractures due to weakened bone
• Infection (if open fracture components persist)
• Cosmetic concerns from visible deformity

Lifestyle & Prevention

• Avoid high-risk activities or use protective gear during sports.
• Maintain bone health through a balanced diet and weight-bearing exercise.
• Use proper techniques for lifting or repetitive tasks to reduce stress on the forearm.
• Follow post-fracture care instructions to minimize malunion risk.
• Attend all follow-up appointments to ensure proper healing.

When to Seek Professional Help

Seek immediate care if you experience severe pain, swelling, or deformity, or if you notice numbness, tingling, or loss of function in the hand or fingers. Contact a healthcare provider if symptoms worsen or if you develop signs of infection (e.g., redness, pus, fever) at the fracture site.

Tips for Medical Coders

This code (S52.325Q) is used for a subsequent encounter of a nondisplaced transverse fracture of the left radius shaft with malunion, specifically for open fracture type I or II. Documentation must confirm the fracture type, malunion status, and that this is a follow-up visit. Ensure the encounter is not initial or acute, and that the open fracture classification (I or II) is clearly recorded. Malunion should be explicitly noted to justify the code.