S62.036K Nondisplaced fracture of proximal third of navicular [scaphoid] bone of unspecified wrist, subsequent encounter for fracture with nonunion

Name of the Condition

Nondisplaced fracture of proximal third of navicular [scaphoid] bone of unspecified wrist, subsequent encounter for fracture with nonunion

Summary

A nondisplaced fracture of the proximal third of the navicular (scaphoid) bone in the unspecified wrist is a break in the upper portion of one of the wrist's small bones, where the bone fragments remain in their normal alignment. This code indicates a subsequent encounter for a fracture that has failed to heal (nonunion) after an initial injury. Nonunion occurs when the bone does not properly fuse during the healing process, requiring further evaluation and management to address the lack of union.

Causes

The fracture typically results from trauma, such as a fall onto an outstretched hand (FOOSH), which applies force to the scaphoid bone. Nonunion may develop due to inadequate immobilization, poor blood supply to the proximal third of the scaphoid, or other factors that impede healing.

Risk Factors

• Participation in activities with a high risk of wrist trauma, such as contact sports or falls.
• Osteoporosis or weakened bone density, which can delay or prevent proper healing.
• Previous wrist injuries or fractures that may have compromised bone integrity or blood supply.

Symptoms

• Persistent pain and tenderness in the wrist, especially at the base of the thumb.
• Swelling or bruising that does not resolve with time.
• Decreased range of motion or difficulty gripping objects.
• Possible numbness or tingling if nerves are affected by the nonunion.

Diagnosis

Physical examination to assess pain, swelling, and wrist mobility. Imaging tests, such as X-rays, CT scans, or MRI, to confirm the fracture and evaluate for nonunion. Additional tests may be used to check for nerve or ligament damage.

Treatment Options

• Immobilization with a cast or splint to stabilize the wrist.
• Surgical intervention, such as bone grafting or internal fixation, to promote healing.
• Physical therapy to restore strength and range of motion after treatment.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and the effectiveness of treatment. Regular follow-up with imaging is necessary to monitor healing progress. Long-term management may be required to address persistent symptoms or functional limitations.

Complications

• Chronic pain or stiffness in the wrist.
• Increased risk of arthritis due to improper healing.
• Nerve damage or reduced blood flow to the wrist.

Lifestyle & Prevention

• Use protective gear during high-risk activities to reduce the chance of wrist injuries.
• Maintain bone health through proper nutrition and exercise to support healing.
• Follow post-injury care instructions carefully to minimize the risk of nonunion.

When to Seek Professional Help

Seek medical attention if pain, swelling, or limited mobility persists or worsens after an initial injury. Prompt evaluation is important if numbness, tingling, or signs of infection (e.g., redness, fever) develop.

Tips for Medical Coders

Document the encounter as a subsequent visit for a fracture with nonunion. Ensure clinical notes specify the fracture location (proximal third of the navicular/scaphoid bone) and the lack of union. Include details about prior treatments or interventions to support the nonunion diagnosis.