S52.335M Nondisplaced oblique fracture of shaft of left radius, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

Nondisplaced oblique fracture of shaft of left radius, subsequent encounter for open fracture type I or II with nonunion
ICD-10 Code: S52.335M

Summary

A nondisplaced oblique fracture of the shaft of the left radius is a break in the long, outer bone of the forearm (radius) between the elbow and wrist, where the fracture line runs at an angle across the bone and the bone fragments remain aligned. This code applies to a subsequent encounter for an open fracture type I or II (skin breach with minimal contamination) that has failed to heal (nonunion) after an initial injury. Treatment focuses on addressing the nonunion and managing the open fracture site to promote healing and prevent infection.

Causes

This fracture typically results from direct trauma, such as falls onto an outstretched arm, direct blows to the forearm, or accidents involving twisting forces at the wrist or elbow. The open nature of the fracture indicates the skin was penetrated during the injury, and the nonunion suggests the bone has not healed properly despite prior treatment. High-impact events like motor vehicle collisions or sports injuries can also cause the bone to break in an oblique pattern.

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
• Poor blood supply to the fracture site
• Inadequate initial fracture immobilization or treatment

Symptoms

• Persistent pain at the injury site, often worsening with activity
• Swelling, bruising, or deformity of the forearm
• Inability to move the wrist or forearm fully
• Visible bone protrusion through the skin (in open fractures)
• Numbness or tingling in the hand or fingers
• Delayed healing or persistent fracture line on imaging

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion, along with imaging studies such as X-rays or CT scans to confirm the fracture type, displacement, and nonunion. The open fracture classification (type I or II) is determined by the size and contamination of the skin wound. Additional tests, like blood work, may be performed to rule out infection or assess bone healing.

Treatment Options

Treatment focuses on stabilizing the fracture to promote union, managing the open wound, and addressing nonunion. Options may include surgical fixation (e.g., plates, screws, or bone grafts) to realign and stabilize the bone, wound care to prevent infection, and physical therapy to restore function. Antibiotics may be prescribed for open fractures to reduce infection risk.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion, the success of treatment, and patient factors like age and overall health. Follow-up care typically involves regular imaging to monitor healing and physical therapy to improve strength and mobility. Long-term outcomes may include persistent pain or limited function if the nonunion is not fully resolved.

Complications

• Infection at the fracture or wound site
• Delayed or failed bone healing (nonunion)
• Nerve or blood vessel damage
• Chronic pain or arthritis in the wrist or elbow
• Limited range of motion or functional impairment
• Skin necrosis or wound breakdown

Lifestyle & Prevention

• Avoid high-risk activities or use protective gear (e.g., wrist guards) during sports
• Maintain bone health through a balanced diet rich in calcium and vitamin D
• Engage in weight-bearing exercises to strengthen bones
• Use proper techniques for lifting or repetitive tasks to reduce stress on the forearm
• Seek prompt treatment for fractures to minimize nonunion risk

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, deformity, or an open wound after an injury. Contact a healthcare provider if you have persistent pain, numbness, or difficulty moving the wrist or forearm, as these may indicate a nonunion or complication.

Tips for Medical Coders

Document the fracture type (oblique, nondisplaced), location (shaft of left radius), encounter type (subsequent), open fracture classification (type I or II), and nonunion status clearly. Ensure the record specifies the fracture’s failure to heal and any associated wound details to support the code.