S52.365P Nondisplaced segmental fracture of shaft of radius, left arm, subsequent encounter for closed fracture with malunion

Name of the Condition

Nondisplaced segmental fracture of shaft of radius, left arm, subsequent encounter for closed fracture with malunion
ICD-10 Code: S52.365P

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 that remain in their original alignment. This injury typically results from significant trauma and may impair arm function depending on associated soft tissue damage. The "nondisplaced" nature means the bone fragments are not shifted out of position, which can influence treatment and recovery. The "subsequent encounter for closed fracture with malunion" indicates this is a follow-up visit for a fracture that has healed but with abnormal alignment, where the skin remains intact.

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 without displacing them. Malunion develops when the bone heals in a non-anatomic position, often due to inadequate immobilization or poor initial alignment.

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 immobilization during initial fracture healing

Symptoms

• Persistent pain or discomfort at the injury site
• Visible or palpable deformity of the forearm
• Reduced range of motion in the wrist or elbow
• Functional impairment, such as difficulty gripping or lifting
• Possible nerve compression symptoms (e.g., numbness, tingling)

Diagnosis

Diagnosis is confirmed through clinical evaluation and imaging studies. A physical examination assesses pain, swelling, deformity, and functional limitations. X-rays or CT scans visualize the fracture and malunion, confirming the bone's alignment and healing status. Additional tests, such as nerve conduction studies, may be performed if nerve involvement is suspected.

Treatment Options

Treatment focuses on managing symptoms and addressing malunion. Options include:

• Pain management with medications or physical therapy
• Bracing or splinting to stabilize the arm
• Surgical intervention (e.g., osteotomy) to realign the bone if functional impairment is significant
• Rehabilitation to restore strength and mobility

Prognosis and Follow-Up

Prognosis depends on the severity of malunion and patient factors. Most patients experience improved function with treatment, though residual limitations may persist. Follow-up visits monitor healing, alignment, and functional recovery. Long-term outcomes are generally favorable with appropriate management.

Complications

• Chronic pain or discomfort
• Persistent functional impairment
• Nerve or vascular damage from malunion
• Increased risk of future fractures in the affected area
• Arthritis or joint stiffness due to abnormal alignment

Lifestyle & Prevention

• Avoid high-risk activities or use protective gear during sports
• Maintain bone health through diet and exercise
• Use proper lifting techniques to reduce forearm stress
• Seek prompt medical care for suspected fractures to ensure proper alignment

When to Seek Professional Help

Consult a healthcare provider if you experience:

• Worsening pain or swelling
• New or worsening deformity
• Loss of sensation or movement in the hand or fingers
• Inability to perform daily activities due to arm impairment

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with malunion. Include details on the fracture's healing status, alignment, and any functional impact. Ensure documentation supports the "malunion" designation and confirms the fracture remains closed (skin intact). Note any treatments provided and the patient's response to care.