S62.166 Nondisplaced fracture of pisiform, unspecified wrist

Name of the Condition

• Nondisplaced fracture of pisiform, unspecified wrist

Summary

This condition refers to a break in the pisiform bone of the wrist where the bone fragments remain in their normal anatomical position. The pisiform is a small, pea-shaped carpal bone located on the palmar (palm) side of the wrist, embedded within the flexor carpi ulnaris tendon. Nondisplaced fractures typically result from trauma and may involve minimal disruption to surrounding structures, preserving wrist stability and function.

Causes

Typically caused by direct trauma to the wrist, such as a fall onto an outstretched hand, a blow to the palmar side of 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 palmar 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 once healing progresses.
• 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 immobilization and rest, with full recovery expected within 6–8 weeks. Follow-up appointments monitor healing progress and adjust treatment as needed. Long-term outcomes are generally favorable, with minimal impact on wrist function if managed appropriately.

Complications

• Delayed union or nonunion of the fracture.
• Chronic pain or stiffness in the wrist.
• Nerve or tendon irritation due to swelling or immobilization.
• Post-traumatic arthritis in rare 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 repetitive wrist stress or heavy lifting until fully healed.
• Practice fall prevention strategies, especially for older adults.

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). Follow up with a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the absence of displacement and specify the wrist (unspecified) to align with the code S62.166. Include details on trauma mechanism, imaging results, and treatment approach to support clinical accuracy. Ensure documentation reflects the nondisplaced nature of the fracture to justify the code selection.