S62.315A Displaced fracture of base of fourth metacarpal bone, left hand, initial encounter for closed fracture

Name of the Condition

• Displaced fracture of base of fourth metacarpal bone, left hand, initial encounter for closed fracture

Summary

A displaced fracture of the base of the fourth metacarpal bone in the left hand is a break in the proximal (base) portion of the fourth metacarpal, where the bone fragments are misaligned. This injury typically results from trauma or direct impact to the hand, leading to pain, swelling, and potential functional impairment. The fracture is classified as closed, meaning the skin is intact, and this is the initial encounter for treatment.

Causes

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

Risk Factors

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

Symptoms

• Pain and swelling in the left hand.
• Tenderness or bruising around the affected area.
• Difficulty moving the fingers or gripping objects.
• Possible visible 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 and displacement.

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 displaced fractures of the metacarpal base heal with proper treatment, though recovery time varies. Follow-up care typically 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 plans.

Complications

• Nonunion or delayed healing of the fracture.
• Malunion, where the bone heals in a misaligned position.
• Chronic pain or stiffness in the hand.
• Nerve or tendon damage in severe cases.

Lifestyle & Prevention

• Use protective gear during high-impact activities or sports.
• 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 (fourth), the hand (left), and the fracture type (displaced, closed). Note the encounter type (initial) to ensure accurate coding. Include details of the injury mechanism, clinical findings, and imaging results to support the diagnosis. Verify that the fracture is not open (closed) and that this is the first encounter for treatment.