S52.366G Nondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with delayed healing

Name of the Condition

Nondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with delayed healing
ICD-10 Code: S52.366G

Summary

A nondisplaced segmental fracture of the shaft of the radius is a break in the long, outer bone of the forearm (radius) between the elbow and wrist, where the bone is separated into two or more fragments without misalignment. This injury typically results from significant trauma and may impair arm function depending on the degree of soft tissue damage. The "unspecified arm" designation indicates the affected side is not documented. The "subsequent encounter for closed fracture with delayed healing" modifier specifies this is a follow-up visit for a fracture that has not healed within the expected timeframe, with no open wound present.

Causes

This fracture commonly occurs due to direct trauma, such as falls onto an outstretched arm, high-impact blows to the forearm, or accidents involving twisting forces at the wrist or elbow. Motor vehicle collisions, sports injuries, or forceful impacts may also cause the bone to break into multiple segments. Delayed healing may result from factors like poor blood supply, infection, or inadequate 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
• Smoking or poor nutrition, which can impair bone healing

Symptoms

• Persistent pain at the injury site beyond the typical healing period
• Swelling or bruising that does not resolve
• Limited range of motion in the wrist or forearm
• Possible deformity if the fracture has shifted (though initially nondisplaced)
• Difficulty bearing weight or using the affected arm

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and mobility. Imaging studies, such as X-rays or CT scans, confirm the fracture type and assess healing progress. The "delayed healing" designation is based on clinical evaluation and imaging showing insufficient bone union after an appropriate healing period. Additional tests may rule out infection or other complications.

Treatment Options

Treatment focuses on promoting healing and may include immobilization with a cast or brace, physical therapy to restore function, and pain management. If healing remains delayed, interventions like bone stimulation, surgery, or addressing underlying factors (e.g., nutrition, smoking cessation) may be considered. Follow-up imaging monitors progress.

Prognosis and Follow-Up

Prognosis depends on the cause of delayed healing and response to treatment. Most fractures eventually heal with appropriate care, but recovery may take longer than usual. Regular follow-up appointments and imaging are essential to track healing. Physical therapy helps restore strength and mobility once healing is confirmed.

Complications

• Nonunion (failure of the bone to heal)
• Malunion (healing in an incorrect position)
• Chronic pain or stiffness
• Nerve or blood vessel damage (rare)
• Infection (if surgical intervention is needed)

Lifestyle & Prevention

• Avoid high-risk activities until fully healed
• Ensure adequate calcium and vitamin D intake for bone health
• Quit smoking to improve healing potential
• Use protective gear during sports or manual labor
• Maintain a healthy weight to reduce fracture risk

When to Seek Professional Help

Seek care if pain worsens, swelling increases, or mobility declines. Contact a healthcare provider if signs of infection (e.g., redness, fever) appear or if the fracture does not improve with treatment. Immediate attention is needed for sudden severe pain or deformity.

Tips for Medical Coders

Use S52.366G for a subsequent encounter of a closed, nondisplaced segmental radius shaft fracture with documented delayed healing. Document the affected arm (if known) and confirm the fracture is closed (no open wound) and healing is delayed. Include clinical notes supporting the delayed healing diagnosis for accurate coding.