S52.629D Torus fracture of lower end of unspecified ulna, subsequent encounter for fracture with routine healing

Name of the Condition

• Torus fracture of lower end of unspecified ulna, subsequent encounter for fracture with routine healing

Summary

A torus fracture of the lower end of the unspecified ulna is a stable, incomplete break in the distal portion of the ulna, one of the two bones in the forearm. This type of fracture is characterized by a buckling or compression of the bone cortex without significant displacement. It typically occurs in children due to the flexibility of their bones and is often the result of trauma, such as a fall onto an outstretched hand. The "subsequent encounter" designation indicates this is a follow-up visit for a fracture that is healing as expected, with no complications.

Causes

The most common cause is trauma, such as a fall onto an outstretched hand, a direct blow to the forearm, or high-impact injuries like sports-related incidents. The force transmitted through the wrist or elbow can lead to a buckling of the distal ulna, particularly in pediatric patients with more pliable bone structures.

Risk Factors

• Participation in contact sports or activities with a high risk of falls (e.g., gymnastics, skateboarding)
• Pediatric age group, as children’s bones are more prone to torus fractures
• Osteoporosis or reduced 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

• Mild to moderate pain at the injury site
• Swelling or tenderness over the distal ulna
• Possible bruising or limited range of motion in the wrist or forearm
• No significant deformity or displacement, as the fracture is stable

Diagnosis

Diagnosis typically 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 rule out other injuries. The "subsequent encounter" status is determined by clinical documentation indicating the fracture is healing routinely, with no signs of delayed union, nonunion, or complications.

Treatment Options

Treatment usually focuses on immobilization, such as a cast or splint, to allow the bone to heal. Pain management may include over-the-counter or prescription medications. Follow-up appointments are scheduled to monitor healing progress, and physical therapy may be recommended to restore strength and mobility once the fracture has healed.

Prognosis and Follow-Up

The prognosis for a torus fracture with routine healing is excellent, as these fractures typically heal without long-term complications. Follow-up care ensures the fracture is healing properly and may involve periodic imaging or clinical assessments until the bone is fully healed. Most patients regain full function of the affected limb.

Complications

Complications are rare with routine healing but may include delayed union, nonunion, or persistent pain. Infection or nerve damage is uncommon but possible if the fracture was associated with an open wound or significant trauma.

Lifestyle & Prevention

• Avoid high-risk activities or use protective gear (e.g., wrist guards) during sports or play
• Maintain bone health through a balanced diet rich in calcium and vitamin D
• Practice safe falling techniques to reduce impact on the wrist or forearm
• Seek prompt medical attention for injuries to prevent complications

When to Seek Professional Help

Seek medical care if pain worsens, swelling increases, or there are signs of infection (e.g., redness, fever). Contact a healthcare provider if there is numbness, tingling, or loss of function in the hand or forearm, as these may indicate nerve or vascular involvement.

Tips for Medical Coders

Document the encounter as a "subsequent encounter" for fracture with routine healing by confirming clinical notes indicate the fracture is healing without complications. Ensure the ulna is unspecified (not right or left) and that the encounter is for follow-up care, not initial treatment. Code S52.629D is specific to the lower end of the ulna and requires clear documentation of the fracture type and healing status.