S52.011S Torus fracture of upper end of right ulna, sequela

Name of the Condition

• Torus fracture of upper end of right ulna, sequela

Summary

A torus fracture of the upper end of the right ulna, sequela, refers to the residual effects of a stable, incomplete fracture in the proximal ulna (the inner forearm bone near the elbow) that has healed but left lasting structural or functional changes. This type of fracture involves a buckling or compression of the bone cortex without significant displacement, typically occurring in children due to their pliable bones. The "sequela" modifier indicates the condition is a late effect of the original injury, such as persistent pain, limited mobility, or deformity resulting from the healed fracture.

Causes

This sequela arises from a prior torus fracture of the upper end of the right ulna, which is usually caused by direct compressive trauma to the elbow, such as a fall onto an outstretched arm or a blow to the forearm. The original injury results in a buckle-type fracture where the bone bends but does not fully break, often from low- to moderate-impact events like sports or playground accidents.

Risk Factors

• Childhood age (due to developing bone structure)
• Previous elbow or forearm injuries
• Activities with a risk of falls or direct trauma to the elbow
• Inadequate initial treatment or healing complications

Symptoms

• Persistent pain or discomfort at the elbow or forearm
• Limited range of motion in the elbow or wrist
• Mild deformity or visible bulging at the injury site
• Tenderness during movement or pressure
• Possible weakness in grip or forearm function

Diagnosis

Diagnosis involves a clinical evaluation of the patient’s history, including the original injury and healing process. Physical examination assesses for residual deformity, tenderness, or functional limitations. Imaging, such as X-rays, may be used to confirm the healed fracture and identify any persistent structural changes. The "sequela" modifier is applied when the condition is a direct result of the prior fracture and is documented as such in the medical record.

Treatment Options

Treatment focuses on managing symptoms and improving function. This may include physical therapy to restore range of motion and strength, pain management with over-the-counter or prescription medications, and activity modification to avoid aggravating the area. In some cases, orthopedic devices like braces or splints may provide support. Surgical intervention is rarely needed unless significant deformity or functional impairment persists.

Prognosis and Follow-Up

Most patients with this sequela experience gradual improvement in symptoms and function over time, especially with appropriate rehabilitation. Follow-up care may involve periodic evaluations to monitor progress and adjust treatment as needed. Long-term outcomes are generally favorable, though some individuals may have mild, permanent limitations in mobility or strength.

Complications

• Chronic pain or discomfort
• Persistent limited range of motion
• Mild deformity affecting appearance or function
• Increased risk of future fractures in the same area
• Nerve or soft tissue irritation from healed bone changes

Lifestyle & Prevention

• Engage in regular, low-impact exercise to maintain bone and joint health
• Use protective gear during sports or activities with fall risks
• Avoid repetitive high-impact motions that stress the elbow
• Maintain a balanced diet rich in calcium and vitamin D to support bone strength

When to Seek Professional Help

Seek medical attention if symptoms worsen, new pain or swelling develops, or functional limitations interfere with daily activities. Prompt evaluation is important if signs of infection (e.g., redness, fever) or nerve compression (e.g., numbness, tingling) occur.

Tips for Medical Coders

Document the relationship between the current condition and the prior torus fracture of the upper end of the right ulna to justify the "sequela" modifier. Ensure the medical record clearly indicates the condition is a late effect of the original injury and not an active fracture. Verify that the code S52.011S is used only when the sequela is directly attributable to the prior fracture and is not better described by another code.