S62.365K Nondisplaced fracture of neck of fourth metacarpal bone, left hand, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of neck of fourth metacarpal bone, left hand, subsequent encounter for fracture with nonunion

Summary

A nondisplaced fracture of the neck of the fourth metacarpal bone in the left hand, with a subsequent encounter for fracture with nonunion, refers to a break in the midsection of the fourth metacarpal bone where the bone fragments remain aligned, but healing has not progressed as expected. This condition occurs after initial treatment, indicating the fracture site has failed to unite properly. The term "subsequent encounter" denotes ongoing care for the fracture, while "nonunion" signifies a lack of bone healing over time.

Causes

Direct trauma, such as a fall or blow to the hand. Sports-related injuries or accidents. Repetitive stress or overuse. Inadequate immobilization during initial treatment. Poor blood supply to the fracture site.

Risk Factors

• Participation in contact sports or high-impact activities.
• Reduced bone density or osteoporosis.
• Occupational hazards involving manual labor.
• Smoking or poor nutrition affecting bone healing.
• Certain medical conditions, such as diabetes or infections.

Symptoms

• Persistent pain and swelling in the hand.
• Tenderness or bruising around the affected area.
• Difficulty moving the fingers or hand.
• Possible deformity or misalignment.
• Lack of improvement in symptoms despite prior treatment.

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 healing progress. Assessment of the fracture site for signs of nonunion, including gaps or sclerosis. Review of prior treatment and imaging to determine the timeline of healing.

Treatment Options

• Extended 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.
• Surgical intervention, such as bone grafting or internal fixation, to stimulate union.
• Use of bone growth stimulators or other adjunctive therapies.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and response to treatment. Most cases improve with appropriate intervention, but healing may take longer than typical fractures. Regular follow-up appointments are necessary to monitor progress through imaging and clinical evaluation. Adjustments to treatment plans may be made based on healing status.

Complications

• Chronic pain or discomfort.
• Persistent swelling or stiffness.
• Limited range of motion in the hand or fingers.
• Risk of infection, especially if surgery is performed.
• Potential for further injury to the affected area.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Use protective gear during sports or manual labor.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Quit smoking, as it impairs bone healing.
• Follow post-treatment instructions carefully to optimize recovery.

When to Seek Professional Help

Seek care if pain worsens or does not improve with treatment. Contact a provider if swelling, redness, or drainage occurs at the fracture site, as these may indicate infection. Prompt evaluation is necessary if mobility in the hand or fingers declines significantly.

Tips for Medical Coders

Document the fracture site (neck of fourth metacarpal bone, left hand), the status of the fracture (nondisplaced), and the encounter type (subsequent) clearly. Specify "nonunion" to indicate failed healing. Include details on prior treatments, imaging results, and clinical findings to support the diagnosis. Ensure documentation aligns with the ICD-10-CM guidelines for fracture coding and subsequent encounters.