S62.024K Nondisplaced fracture of middle third of navicular [scaphoid] bone of right wrist, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of middle third of navicular [scaphoid] bone of right wrist, subsequent encounter for fracture with nonunion

Summary

This condition involves a break in the middle third of the navicular (scaphoid) bone, a small bone in the wrist near the base of the thumb, on the right side. The fracture is nondisplaced, meaning the bone fragments remain in their normal position. It is a subsequent encounter, indicating follow-up care after the initial treatment, and the fracture has not healed (nonunion). The scaphoid is critical for wrist stability and movement, and nonunion may require additional intervention to promote healing.

Causes

Typically results from a fall onto an outstretched hand (FOOSH). Can occur due to direct trauma to the wrist, such as a blow or impact. May also result from twisting injuries or high-impact activities that stress the wrist. Nonunion may develop if the initial fracture did not heal properly, often due to inadequate immobilization, poor blood supply to the scaphoid, or delayed treatment.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or weakened bone structure, particularly in older adults.
• Previous wrist injuries or fractures that may have compromised bone integrity.
• Delayed or inadequate initial treatment of the fracture.

Symptoms

• Persistent pain and tenderness at the base of the thumb.
• Swelling and bruising around the wrist area.
• Limited wrist movement or difficulty gripping objects.
• Possible numbness or tingling if nerves are affected.
• Lack of improvement in symptoms despite prior treatment.

Diagnosis

Physical examination to assess pain, swelling, and wrist mobility. Imaging tests, such as X-rays, CT scans, or MRI, to visualize the fracture and confirm nonunion. Comparison with prior imaging may be used to evaluate healing progress. Additional tests, like bone scans, may be performed to assess blood flow to the scaphoid.

Treatment Options

• Immobilization with a cast or splint to stabilize the wrist and promote healing.
• Surgical intervention, such as bone grafting or internal fixation, if nonunion persists.
• Physical therapy to restore wrist function and strength after healing.
• Pain management with medications or other modalities.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and response to treatment. Follow-up imaging is typically required to monitor healing. Regular appointments with a healthcare provider are necessary to assess progress and adjust treatment as needed. Full recovery may take several months, and some patients may experience long-term wrist stiffness or weakness.

Complications

• Chronic pain or arthritis in the wrist.
• Persistent nonunion requiring additional surgery.
• Reduced wrist mobility or function.
• Nerve damage leading to numbness or weakness.

Lifestyle & Prevention

• Avoid high-impact activities or sports that risk wrist injury until fully healed.
• Use protective gear, such as wrist guards, during activities with fall risks.
• Maintain bone health through adequate calcium and vitamin D intake.
• Follow post-treatment guidelines closely to support healing.

When to Seek Professional Help

Seek care if pain worsens, swelling increases, or mobility decreases. Contact a healthcare provider if numbness, tingling, or signs of infection (e.g., redness, warmth) develop. Prompt evaluation is important if symptoms do not improve with conservative treatment.

Tips for Medical Coders

Document the subsequent encounter for fracture with nonunion, including details of prior treatment and imaging findings confirming nonunion. Ensure documentation supports the "subsequent encounter" and "nonunion" aspects of the code. Note any surgical interventions or therapies provided during this encounter.