S62.174K Nondisplaced fracture of trapezium [larger multangular], right wrist, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of trapezium [larger multangular], right wrist, subsequent encounter for fracture with nonunion

Summary

This condition refers to a break in the trapezium bone of the right wrist where the bone fragments remain in their normal alignment, but the fracture has failed to heal (nonunion) during a subsequent encounter. The trapezium is a small carpal bone at the base of the thumb, critical for thumb movement and grip. Nonunion indicates the fracture did not progress to healing as expected, requiring further evaluation and management.

Causes

Typically caused by direct trauma to the wrist, such as a fall onto an outstretched hand, a blow to the wrist, or a twisting injury. Factors contributing to nonunion may include inadequate immobilization, poor blood supply to the bone, or underlying health conditions affecting bone healing.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or weakened bone structure, especially in older adults.
• Previous wrist injuries or fractures.
• Smoking or other factors that impair bone healing.

Symptoms

• Persistent pain, swelling, and tenderness at the base of the thumb.
• Bruising or discoloration around the injury site.
• Limited range of motion or difficulty moving the thumb.
• Visible deformity in severe cases.
• Symptoms that persist beyond the expected healing time for a fracture.

Diagnosis

Physical examination to assess pain, swelling, and thumb mobility. Imaging tests, such as X-rays, CT scans, or MRIs, to confirm the fracture and evaluate its alignment and healing status. Additional tests may be used to assess blood flow or bone density if nonunion is suspected.

Treatment Options

• Immobilization: Continued use of a cast or splint to stabilize the wrist.
• Surgical intervention: Procedures to promote healing, such as bone grafting or internal fixation.
• Physical therapy: Exercises to restore strength and range of motion.
• Pain management: Medications or other therapies to alleviate discomfort.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and the effectiveness of treatment. Regular follow-up appointments are necessary to monitor healing progress. Recovery may be prolonged, and some patients may experience long-term limitations in wrist or thumb function.

Complications

• Chronic pain or discomfort.
• Persistent limited range of motion.
• Increased risk of arthritis in the wrist.
• Need for additional surgical procedures.

Lifestyle & Prevention

• Avoid high-impact activities that risk wrist injury.
• Maintain bone health through proper nutrition and exercise.
• Use protective gear during sports or activities with fall risks.
• Follow post-injury care instructions to support healing.

When to Seek Professional Help

Seek medical attention if symptoms worsen, new symptoms develop, or if there is no improvement in pain or mobility after initial treatment. Immediate care is needed for signs of infection, severe swelling, or loss of sensation.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture with nonunion. Include details about the fracture's status, treatment provided, and any contributing factors to nonunion. Ensure documentation supports the use of this specific code and aligns with clinical guidelines for fracture follow-up.