S92.322P Displaced fracture of second metatarsal bone, left foot, subsequent encounter for fracture with malunion

Name of the Condition

• Technical Term: Displaced fracture of second metatarsal bone, left foot, subsequent encounter for fracture with malunion
• ICD-10 Code: S92.322P
• Common Name: Broken second metatarsal (left foot, malunion)

Summary

A displaced fracture of the second metatarsal bone in the left foot, with malunion, refers to a break where the bone fragments have healed in a misaligned position during a subsequent encounter. This condition occurs after initial fracture treatment and may affect weight-bearing ability and mobility due to improper bone alignment. The severity and management depend on the extent of displacement and functional impact.

Causes

Direct trauma to the left foot, such as a fall, sports injury, or heavy object impact, is the primary cause of the initial fracture. Malunion develops when the bone heals incorrectly, often due to inadequate immobilization, poor blood supply, or excessive movement during healing. Subsequent encounters indicate ongoing care for the healed but misaligned fracture.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer)
• Wearing improper or non-supportive footwear
• Conditions that weaken bones, such as osteoporosis
• Advanced age, which may reduce bone density and balance
• Previous foot injuries or fractures
• Inadequate initial fracture management

Symptoms

• Persistent pain and tenderness in the midfoot (left foot)
• Swelling and bruising around the affected bone
• Difficulty bearing weight or walking
• Visible deformity or altered foot shape
• Reduced range of motion in the foot

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays or CT scans, confirm the malunion by showing misaligned bone fragments. The provider evaluates functional limitations and may compare current imaging to prior records to determine the extent of healing and displacement.

Treatment Options

Treatment focuses on managing symptoms and improving function. Options may include orthotics or supportive footwear to redistribute weight, physical therapy to strengthen surrounding muscles, and pain management. Surgical intervention, such as osteotomy, may be considered for severe malunion affecting mobility.

Prognosis and Follow-Up

Prognosis depends on the degree of malunion and functional impact. Most patients experience improved symptoms with conservative management, though some may have persistent limitations. Follow-up care involves regular monitoring to assess healing and adjust treatment plans as needed.

Complications

• Chronic pain or discomfort
• Altered gait or balance issues
• Increased risk of future fractures
• Arthritis in adjacent joints due to abnormal mechanics
• Reduced mobility or activity limitations

Lifestyle & Prevention

• Wear supportive, properly fitted footwear to reduce stress on the foot.
• Avoid high-impact activities that strain the foot until cleared by a provider.
• Maintain bone health through a balanced diet and regular exercise.
• Use protective gear during sports to minimize injury risk.

When to Seek Professional Help

Seek care if you experience worsening pain, swelling, or difficulty walking, or if you notice a change in foot shape. Prompt evaluation is important if symptoms interfere with daily activities or if you suspect a new injury.

Tips for Medical Coders

Document the subsequent encounter for fracture with malunion, including details of the misaligned healing and any functional impact. Ensure clinical notes specify the malunion and its effect on treatment or mobility to support accurate coding.