S62.318 Displaced fracture of base of other metacarpal bone

Name of the Condition

• Displaced fracture of base of other metacarpal bone

Summary

A displaced fracture of the base of another metacarpal bone involves a break in the proximal (base) portion of one of the hand bones, excluding the thumb, where the bone fragments are misaligned. This injury typically results from trauma or impact to the hand, leading to a fracture that disrupts the normal alignment of the bone.

Causes

Direct trauma, such as a fall or blow to the hand. Sports-related injuries or accidents. Repetitive stress or overuse.

Risk Factors

• Participation in contact sports or high-impact activities.
• Reduced bone density or osteoporosis.
• Occupational hazards involving manual labor.

Symptoms

• Pain and swelling in the hand.
• Tenderness or bruising around the affected area.
• Difficulty moving the fingers or hand.
• Possible deformity or misalignment.

Diagnosis

Physical examination by a healthcare provider to assess tenderness, swelling, or deformity. Imaging tests, such as X-rays, to confirm the fracture and evaluate its extent.

Treatment Options

• Immobilization with a cast or splint to promote healing.
• Pain management using over-the-counter or prescription medications.
• Physical therapy to restore mobility and strength.
• Surgery may be required for severe or displaced fractures to realign the bone.

Prognosis and Follow-Up

Most fractures heal within 6–8 weeks with proper treatment. Follow-up care includes monitoring for healing progress and assessing functional recovery. Physical therapy may be recommended to restore full range of motion and strength. Long-term outcomes depend on the severity of the fracture and adherence to treatment.

Complications

• Nonunion or delayed healing of the fracture.
• Malunion, where the bone heals in an abnormal position.
• Stiffness or reduced mobility in the hand.
• Chronic pain or arthritis in the affected joint.

Lifestyle & Prevention

• Use protective gear during sports or high-risk activities.
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid repetitive hand movements that may increase stress on the metacarpals.
• Practice proper ergonomics during manual labor to reduce strain.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after a hand injury. Consult a healthcare provider if symptoms worsen or do not improve with initial care, or if you notice numbness, tingling, or difficulty moving the fingers.

Tips for Medical Coders

Document the specific metacarpal bone involved (e.g., third, fourth, or fifth) and confirm displacement status. Ensure clinical notes specify the fracture location and alignment to support accurate coding. Verify that the injury is not related to the thumb (which uses a different code series) and that no additional injuries (e.g., open fracture, compartment syndrome) are present that would require additional codes.