S52.262F Displaced segmental fracture of shaft of ulna, left arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Name of the Condition

• Displaced segmental fracture of shaft of ulna, left arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Summary

A displaced segmental fracture of the shaft of the ulna, left arm, is a break in the long, straight portion of the ulna bone (one of the two forearm bones) where the bone is broken into two or more separate fragments, and these fragments are misaligned. This is a subsequent encounter for an open fracture type IIIA, IIIB, or IIIC with routine healing, indicating the fracture was previously treated, the skin was breached with significant soft tissue damage, and healing is progressing as expected without complications.

Causes

Direct trauma to the forearm, such as from a fall, blow, or accident. High-impact injuries, including sports-related incidents or motor vehicle collisions. Indirect forces transmitted through the wrist or elbow, potentially causing a break in the ulna shaft.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or other conditions that weaken bone density.
• Previous fractures or bone abnormalities that may predispose to injury.
• Advanced age, which can reduce bone strength.

Symptoms

• Pain and tenderness localized to the forearm.
• Swelling and bruising around the injured area.
• Difficulty moving the arm, wrist, or hand due to pain or instability.
• Possible visible deformity if the fracture is displaced.

Diagnosis

Physical examination to assess tenderness, swelling, and deformity. Imaging studies, such as X-rays or CT scans, to confirm the fracture type, displacement, and healing progress. Evaluation of the open wound and surrounding soft tissue for signs of infection or complications.

Treatment Options

Monitoring of routine healing with periodic imaging to ensure proper bone alignment and union. Wound care to prevent infection, including cleaning and dressing changes. Pain management with medications or other therapies. Physical therapy to restore range of motion and strength as healing allows. Surgical intervention may be considered if alignment issues or complications arise.

Prognosis and Follow-Up

With routine healing, most patients recover function over time, though residual stiffness or weakness may occur. Follow-up appointments are necessary to assess healing progress, adjust treatment, and address any functional limitations. Long-term monitoring may be required to ensure full recovery and prevent future complications.

Complications

Infection of the open wound or bone (osteomyelitis). Delayed union or nonunion of the fracture. Nerve or blood vessel damage affecting arm function. Chronic pain or arthritis in the affected joint. Limited range of motion or muscle weakness.

Lifestyle & Prevention

Avoid high-risk activities until fully healed. Use protective gear during sports or work. Maintain bone health with a balanced diet and regular exercise. Practice fall prevention strategies, especially for older adults. Follow post-injury guidelines to support healing and reduce reinjury risk.

When to Seek Professional Help

Increased pain, swelling, or redness around the injury site. Signs of infection, such as fever, pus, or foul odor. Numbness, tingling, or loss of circulation in the hand or fingers. Difficulty moving the arm or wrist despite treatment. Any concerns about healing progress or new symptoms.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC) and confirm routine healing status. Include details on the encounter type (subsequent) and any relevant clinical findings. Ensure alignment with ICD-10-CM guidelines for open fracture classification and healing documentation. Verify that the code reflects the specific anatomical location (left ulna shaft) and fracture characteristics.