S52.012P Torus fracture of upper end of left ulna, subsequent encounter for fracture with malunion

Name of the Condition

• Torus fracture of upper end of left ulna, subsequent encounter for fracture with malunion

Summary

A torus fracture of the upper end of the left ulna is a stable, incomplete break in the proximal portion of the ulna, the inner bone of the forearm near the elbow. This type of fracture involves a buckling or compression of the bone cortex without significant displacement. The term "subsequent encounter" indicates this is a follow-up visit for a fracture that has healed but with malunion, meaning the bone has healed in a misaligned position. Torus fractures are common in children due to their softer, more pliable bones.

Causes

This fracture typically results from a direct force applied to the elbow, such as a fall onto an outstretched arm or a blow to the elbow. The torus pattern occurs when the bone bends but does not fully break, usually from low- to moderate-impact trauma. Malunion may develop if the fracture was not properly immobilized or if healing occurred with misalignment.

Risk Factors

• Participation in contact sports or activities with a risk of falls
• Childhood age (due to developing bone structure)
• Osteoporosis or weakened bone density
• Previous elbow or forearm injuries
• Inadequate immobilization during initial healing

Symptoms

• Persistent pain or discomfort at the injury site
• Swelling or tenderness around the elbow
• Limited range of motion in the elbow or forearm
• Visible or palpable deformity due to misalignment
• Functional impairment, such as difficulty gripping or lifting

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays, are used to confirm the fracture and evaluate the extent of malunion. The provider will compare current imaging with prior records to determine the healing status and alignment. Additional tests may be ordered if nerve or vascular involvement is suspected.

Treatment Options

Treatment focuses on managing symptoms and addressing functional limitations caused by malunion. Options may include physical therapy to improve range of motion and strength, pain management with medications, or orthotic devices for support. In severe cases, surgical intervention to realign the bone may be considered, though this is less common for torus fractures.

Prognosis and Follow-Up

Prognosis depends on the degree of malunion and its impact on function. Most patients experience improved symptoms with conservative management, but some may have long-term limitations. Follow-up visits are necessary to monitor healing and functional recovery. Regular imaging may be used to assess progress and guide treatment adjustments.

Complications

• Chronic pain or discomfort
• Reduced range of motion or stiffness
• Functional impairment affecting daily activities
• Increased risk of future fractures in the affected area
• Nerve or vascular damage (rare)

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports)
• Maintain bone health through proper nutrition (e.g., calcium, vitamin D)
• Avoid falls by using assistive devices if balance is impaired
• Follow post-injury care instructions to ensure proper healing
• Engage in regular exercise to strengthen bones and muscles

When to Seek Professional Help

Seek medical attention if you experience worsening pain, increased swelling, numbness, or tingling in the hand or forearm. Additionally, consult a provider if you notice a new deformity or if functional limitations persist despite treatment.

Tips for Medical Coders

This code is used for a subsequent encounter for a torus fracture of the upper end of the left ulna with malunion. Document the encounter type (subsequent) and confirm the presence of malunion. Ensure the laterality (left) and fracture type (torus) are clearly documented. Review prior records to verify the initial fracture and healing status.