S52.011A Torus fracture of upper end of right ulna, initial encounter for closed fracture

Name of the Condition

• Torus fracture of upper end of right ulna, initial encounter for closed fracture

Summary

A torus fracture of the upper end of the right ulna is a buckle-type fracture occurring in the proximal portion of the ulna, the inner bone of the forearm near the elbow. This injury is characterized by a bulging or compression of the bone cortex without complete displacement. The term "initial encounter" indicates this is the first presentation for treatment, and "closed fracture" means the skin remains intact. Torus fractures are common in children due to their softer, more pliable bones.

Causes

This fracture typically results from a direct compressive force applied to the elbow, such as a fall onto an outstretched arm or a blow to the forearm. The force causes the bone to buckle rather than break completely, often during activities like sports, playground accidents, or minor trauma.

Risk Factors

• Participation in high-impact or contact activities (e.g., sports, playground play)
• Age (more common in children due to developing bone structure)
• Previous elbow or forearm injuries

Symptoms

• Pain and swelling localized to the elbow or forearm
• Tenderness at the injury site
• Mild limitation of elbow or forearm movement
• Possible bruising or mild deformity (less severe than complete fractures)

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, are typically used to confirm the fracture and evaluate bone alignment. The buckle-type appearance of the bone cortex is characteristic on imaging.

Treatment Options

Treatment often includes immobilization with a cast or splint to allow healing. Pain management may involve over-the-counter analgesics. Follow-up imaging may be performed to ensure proper healing. Most torus fractures heal without surgery, especially in children.

Prognosis and Follow-Up

Prognosis is generally favorable, with most fractures healing within 4–6 weeks. Follow-up appointments monitor healing progress and may involve repeat imaging. Full return to normal activities is typically expected once pain and swelling resolve and mobility is restored.

Complications

• Delayed healing (rare)
• Residual stiffness or limited range of motion
• Recurrence of fracture at the same site (if trauma recurs)

Lifestyle & Prevention

• Use protective gear during sports or high-risk activities.
• Ensure proper supervision of children during play to minimize falls.
• Maintain bone health through adequate nutrition (e.g., calcium, vitamin D) for long-term strength.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, inability to move the arm, visible deformity, or signs of infection (e.g., redness, fever). Persistent pain or swelling after initial treatment should also prompt a follow-up with a healthcare provider.

Tips for Medical Coders

Document the specific location (upper end of right ulna), fracture type (torus), encounter status (initial), and whether the fracture is closed. Ensure clinical notes support the absence of displacement or open wound. The code S52.011A requires confirmation of the right-sided, closed, initial encounter details for accurate assignment.