S62.146 Nondisplaced fracture of body of hamate [unciform] bone, unspecified wrist

Name of the Condition

• Nondisplaced fracture of body of hamate [unciform] bone, unspecified wrist

Summary

This condition refers to a break or crack in the body of the hamate bone, one of the small carpal bones in the wrist, without displacement of bone fragments. The hamate is located on the ulnar (pinky) side of the wrist and contributes to wrist stability and grip function. Fractures in this area typically result from trauma and may vary in severity, with nondisplaced fractures involving intact alignment of bone fragments.

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.

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.

Symptoms

• Pain, swelling, and tenderness in the ulnar side of the wrist.
• Bruising or discoloration around the injury site.
• Limited range of motion or difficulty moving the hand or fingers.
• Visible deformity in severe cases.

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 its extent and alignment.

Treatment Options

• Immobilization: Using a cast, splint, or brace to stabilize the wrist and promote healing.
• Pain management: Over-the-counter or prescription medications to reduce discomfort.
• Physical therapy: Exercises to restore strength and range of motion after healing.
• Surgical intervention: Rarely required for nondisplaced fractures, but may be considered if conservative treatment fails.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with proper immobilization and rest. Full recovery typically occurs within 6–8 weeks, though stiffness or mild pain may persist temporarily. Follow-up appointments monitor healing progress and adjust treatment as needed.

Complications

• Delayed union or nonunion of the fracture.
• Chronic pain or stiffness in the wrist.
• Nerve or tendon irritation due to swelling or misalignment.
• Post-traumatic arthritis in severe cases.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., wrist guards in sports).
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid falls by improving balance and removing tripping hazards at home.
• Strengthen wrist muscles through regular exercise to enhance stability.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, inability to move the wrist, visible deformity, or signs of infection (e.g., redness, fever). Persistent pain or swelling after initial treatment also warrants evaluation.

Tips for Medical Coders

Document the fracture as nondisplaced and specify the wrist (unspecified) in clinical notes. Ensure the diagnosis aligns with imaging findings and clinical presentation. Use additional codes for associated injuries or comorbidities as applicable.