S62.313P Displaced fracture of base of third metacarpal bone, left hand, subsequent encounter for fracture with malunion

Name of the Condition

• Displaced fracture of base of third metacarpal bone, left hand, subsequent encounter for fracture with malunion

Summary

A displaced fracture of the base of the third metacarpal bone in the left hand, with malunion, is a break in the proximal (base) portion of the third metacarpal where bone fragments are misaligned and have healed in an abnormal position. This condition occurs during a subsequent encounter for treatment, indicating the fracture has progressed beyond the initial healing phase. Malunion may result in functional impairment, pain, or deformity due to improper bone alignment.

Causes

Direct trauma, such as a fall or blow to the hand. Sports-related injuries or accidents involving the hand. Inadequate initial treatment or immobilization leading to improper healing.

Risk Factors

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

Symptoms

• Persistent pain and swelling in the left hand.
• Tenderness or bruising around the affected area.
• Difficulty moving the fingers or gripping objects.
• Visible deformity or misalignment of the hand.
• Reduced range of motion or functional limitations.

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 the extent of malunion. Comparison with prior imaging to assess healing progression.

Treatment Options

• Orthopedic evaluation to determine if realignment or corrective surgery is necessary.
• Pain management using over-the-counter or prescription medications.
• Physical therapy to restore mobility and strength.
• Possible use of braces or splints to support the hand during healing.
• Surgical intervention, such as osteotomy, to correct malunion in severe cases.

Prognosis and Follow-Up

Prognosis depends on the severity of malunion and functional impact. Most patients experience improved function with appropriate treatment, though some may have residual limitations. Follow-up care includes regular monitoring of healing and functional recovery, with adjustments to treatment plans as needed.

Complications

• Chronic pain or discomfort.
• Reduced hand function or grip strength.
• Arthritis or joint stiffness due to abnormal bone alignment.
• Nerve or tendon damage from malpositioned bone fragments.
• Need for additional surgical intervention.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or manual labor.
• Maintain bone health through proper nutrition and exercise.
• Follow post-treatment guidelines to support healing and prevent re-injury.

When to Seek Professional Help

Seek immediate medical attention if experiencing severe pain, swelling, or deformity. Consult a healthcare provider if symptoms worsen or do not improve with treatment, or if new functional limitations arise.

Tips for Medical Coders

Document the subsequent encounter for fracture with malunion, including details of the malunion (e.g., degree of displacement, impact on function) and any treatment provided. Ensure documentation supports the use of this code by confirming the fracture has healed with malunion and this is a follow-up visit.