S62.144K Nondisplaced fracture of body of hamate [unciform] bone, right wrist, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of body of hamate [unciform] bone, right wrist, subsequent encounter for fracture with nonunion

Summary

This condition describes a break in the body of the hamate bone, one of the small carpal bones in the right wrist, where bone fragments remain in their normal alignment but have failed to heal properly (nonunion). The hamate is located on the ulnar (pinky) side of the wrist and contributes to wrist stability and grip function. This code is used for follow-up care after an initial fracture, where healing has not occurred as expected.

Causes

Typically caused by direct trauma to the wrist, such as a fall onto an outstretched hand, a blow to the wrist, or a crushing injury. High-impact activities or accidents may also lead to fractures in this specific bone. Nonunion may result from inadequate immobilization, poor blood supply, or severe initial injury.

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 poor nutrition, which can impair healing.

Symptoms

• Persistent pain, swelling, and tenderness in the ulnar side of the right wrist.
• Bruising or discoloration around the injury site.
• Limited range of motion or difficulty moving the hand or fingers.
• Visible deformity in severe cases.
• Possible clicking or grinding sensations during wrist movement.

Diagnosis

Physical examination to assess pain, swelling, and wrist mobility. Imaging tests, such as X-rays, CT scans, or MRIs, to confirm the fracture and evaluate for nonunion. Additional tests may assess blood flow or bone healing potential.

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.
• Pain management with medications or other modalities.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and treatment response. Follow-up care is essential to monitor healing and adjust treatment as needed. Regular imaging may be required to assess progress.

Complications

• Chronic pain or stiffness in the wrist.
• Reduced grip strength or functional impairment.
• Increased risk of future fractures due to weakened bone.
• Nerve or tendon damage in severe cases.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or risky activities.
• Maintain bone health through proper nutrition and exercise.
• Follow post-injury care instructions to support healing.

When to Seek Professional Help

Seek care if pain worsens, swelling increases, or movement becomes more limited. Contact a provider immediately for signs of infection, such as redness, warmth, or fever.

Tips for Medical Coders

Document the fracture type (nondisplaced), location (right wrist), and the presence of nonunion. Include details of subsequent encounters, such as treatment progress or healing status, to support accurate coding.