S52.621A Torus fracture of lower end of right ulna, initial encounter for closed fracture

Name of the Condition

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

Summary

A torus fracture of the lower end of the right ulna is a stable, incomplete break in the distal portion of the ulna, one of the forearm bones. This type of fracture typically occurs in children due to the bone's flexibility and is characterized by a bulging or buckling of the bone cortex without significant displacement. The "initial encounter" indicates this is the first time the fracture is being treated, and "closed" means the skin is intact with no open wound.

Causes

The most common cause is trauma, such as a fall onto an outstretched hand or a direct blow to the forearm. The force transmitted through the wrist or elbow can lead to this specific type of fracture, which is often seen in pediatric populations due to their developing bones.

Risk Factors

• Participation in activities with a high risk of falls (e.g., sports, playground activities)
• Age (more common in children due to bone elasticity)
• Osteoporosis or weakened bone density (less common in children but relevant in older populations)
• Previous forearm or wrist injuries
• Certain occupations or hobbies involving repetitive stress or heavy lifting

Symptoms

• Sudden, localized pain at the injury site
• Swelling or tenderness over the lower end of the ulna
• Limited range of motion in the wrist or elbow
• Possible deformity or bulging of the bone (visible in some cases)
• Difficulty gripping or moving the hand

Diagnosis

Diagnosis is confirmed through physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, are typically used to visualize the fracture pattern and confirm the torus (buckling) nature of the break. The absence of displacement and intact skin are key diagnostic features.

Treatment Options

Treatment usually involves immobilization with a cast or splint to allow the bone to heal. Pain management may include over-the-counter or prescription medications. Follow-up imaging may be performed to monitor healing progress. In most cases, no surgical intervention is required due to the stability of the fracture.

Prognosis and Follow-Up

The prognosis is generally excellent, with most fractures healing completely within 4–6 weeks. Follow-up appointments are important to ensure proper healing and to remove the cast or splint once the bone is stable. Physical therapy may be recommended to restore full range of motion and strength.

Complications

• Delayed healing or nonunion (rare)
• Malunion (abnormal healing)
• Nerve or blood vessel injury (uncommon)
• Chronic pain or stiffness (if not properly immobilized)
• Recurrence of fracture (if underlying bone weakness exists)

Lifestyle & Prevention

• Use protective gear during sports or high-risk activities
• Maintain bone health through adequate nutrition (e.g., calcium, vitamin D)
• Avoid falls by using proper safety measures (e.g., handrails, non-slip surfaces)
• Engage in regular weight-bearing exercise to strengthen bones
• Seek prompt medical attention for any suspected fractures

When to Seek Professional Help

• Severe or worsening pain that does not improve with rest or medication
• Visible deformity or inability to move the wrist/elbow
• Numbness, tingling, or coldness in the hand or fingers
• Signs of infection (e.g., redness, pus, fever)
• New or worsening symptoms after initial treatment

Tips for Medical Coders

This code (S52.621A) is specific to a torus fracture of the lower end of the right ulna, with "initial encounter" indicating the first treatment and "closed" specifying no open wound. Documentation should clearly state the fracture type (torus), location (right ulna), and encounter status (initial) to support accurate coding. Ensure the absence of displacement and open wound is documented to align with the code's definition.