S52.245D Nondisplaced spiral fracture of shaft of ulna, left arm, subsequent encounter for closed fracture with routine healing

Name of the Condition

• Nondisplaced spiral fracture of shaft of ulna, left arm, subsequent encounter for closed fracture with routine healing

Summary

A nondisplaced spiral 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) with a spiral pattern and no misalignment of bone fragments. This fracture typically results from rotational forces and involves the left arm. The fracture is closed, meaning the skin is intact, and this is a subsequent encounter for treatment, indicating routine healing 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 spiral 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 (though nondisplaced fractures may not show obvious deformity).

Diagnosis

Physical examination to assess tenderness, swelling, and range of motion. Imaging, typically an X-ray, to confirm the fracture type, location, and lack of displacement. Documentation of the fracture as closed and healing routinely supports the diagnosis.

Treatment Options

• Immobilization with a cast or splint to stabilize the fracture during healing.
• Pain management with over-the-counter or prescription medications.
• Physical therapy to restore strength and range of motion once healing progresses.
• Follow-up imaging to monitor healing and ensure no displacement occurs.

Prognosis and Follow-Up

Most nondisplaced spiral fractures of the ulna shaft heal well with proper immobilization and care. Routine healing is expected, and follow-up appointments are typically scheduled to assess progress and remove immobilization when appropriate. Full recovery of function is common, though some stiffness or minor discomfort may persist temporarily.

Complications

• Delayed healing or nonunion if the fracture does not heal as expected.
• Malunion, where the bone heals in a slightly abnormal position, potentially affecting function.
• Infection, though rare in closed fractures.
• Nerve or blood vessel damage, though uncommon with nondisplaced fractures.

Lifestyle & Prevention

• Use protective gear during high-risk activities, such as sports or work.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Avoid falls by using assistive devices if needed, especially in older adults.
• Strengthen forearm muscles to improve stability and reduce injury risk.

When to Seek Professional Help

• Severe or worsening pain that is not relieved by prescribed medications.
• Increased swelling, bruising, or redness around the injury site.
• Numbness, tingling, or changes in skin color in the hand or fingers.
• Inability to move the wrist or fingers, which may indicate nerve or tendon involvement.

Tips for Medical Coders

Document the fracture as nondisplaced, spiral, and involving the shaft of the ulna in the left arm. Confirm the encounter is subsequent and the fracture is closed with routine healing. Ensure clinical notes specify the fracture type, location, and healing status to support accurate coding.