S62.023K Displaced fracture of middle third of navicular [scaphoid] bone of unspecified wrist, subsequent encounter for fracture with nonunion

Name of the Condition

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

Summary

This condition involves a displaced fracture in the middle third of the navicular (scaphoid) bone, a small bone in the wrist near the base of the thumb. The fracture has not healed properly, resulting in nonunion, and this is a subsequent encounter for the fracture. Displacement means the bone fragments have shifted from their normal position, and nonunion indicates the fracture site has failed to fuse over time, potentially affecting wrist function and stability.

Causes

Displaced scaphoid fractures with nonunion typically result from initial trauma, such as a fall onto an outstretched hand (FOOSH) or direct wrist impact. Nonunion may develop if the fracture was not properly immobilized, had poor blood supply, or was not treated promptly. High-impact injuries or inadequate initial management can contribute to the failure of the bone to heal.

Risk Factors

• Delayed or inadequate initial treatment of the fracture.
• Poor blood supply to the scaphoid bone, which is common in this region.
• Smoking, which impairs bone healing.
• Osteoporosis or other conditions that weaken bone structure.
• High-impact activities or occupations that stress the wrist.

Symptoms

• Persistent pain at the base of the thumb or wrist, often worsening with movement.
• Swelling or tenderness that does not resolve over time.
• Limited wrist mobility or difficulty gripping objects.
• Possible clicking or grinding sensations during wrist motion.
• In some cases, no visible deformity if the fracture is not displaced.

Diagnosis

Physical examination to assess pain, swelling, and wrist function. Imaging tests, such as X-rays, CT scans, or MRI, to evaluate the fracture site and confirm nonunion. These tests help determine the extent of displacement and assess bone healing. Additional evaluations may include assessing blood flow to the scaphoid or checking for associated injuries.

Treatment Options

Treatment depends on the severity of displacement and nonunion. Options may include immobilization with a cast or brace to promote healing, surgical intervention to realign and stabilize the bone (e.g., internal fixation), or bone grafting to stimulate union. Physical therapy may be recommended to restore wrist function after treatment. In some cases, ongoing monitoring is necessary to assess healing progress.

Prognosis and Follow-Up

Prognosis varies based on the fracture's severity and treatment. Nonunion fractures may require extended healing time or additional interventions. Regular follow-up with imaging is important to monitor progress. Most patients can regain functional wrist movement, but some may experience long-term stiffness or pain. Compliance with treatment and rehabilitation is key to optimizing outcomes.

Complications

• Chronic pain or arthritis in the wrist.
• Persistent nonunion or delayed healing.
• Reduced wrist mobility or grip strength.
• Nerve damage or vascular issues due to the fracture.
• Infection (if surgical intervention is required).

Lifestyle & Prevention

• Avoid high-impact activities that risk wrist injury until fully healed.
• Use protective gear during sports or manual labor.
• Maintain bone health through proper nutrition and exercise.
• Seek prompt medical attention for wrist injuries to prevent complications.
• Follow rehabilitation guidelines to restore strength and mobility.

When to Seek Professional Help

• Persistent or worsening pain, swelling, or tenderness in the wrist.
• Difficulty moving the wrist or gripping objects.
• Visible deformity or open wound at the fracture site.
• Numbness, tingling, or changes in skin color (indicating nerve or vascular issues).
• Symptoms that do not improve with initial treatment or home care.

Tips for Medical Coders

This code represents a subsequent encounter for a displaced scaphoid fracture with nonunion. Document the encounter as a follow-up visit for the fracture, noting the nonunion status. Ensure documentation supports the fracture's location (middle third of the navicular bone) and the absence of healing. Include details about any treatments or evaluations performed during the encounter to justify the code.