S92.322B Displaced fracture of second metatarsal bone, left foot, initial encounter for open fracture

Name of the Condition

• Technical Term: Displaced fracture of second metatarsal bone, left foot, initial encounter for open fracture
• ICD-10 Code: S92.322B
• Common Name: Broken second metatarsal (left foot, open fracture)

Summary

A displaced fracture of the second metatarsal bone in the left foot is a break where the bone fragments are out of alignment, occurring during the initial encounter for an open fracture (where the skin is broken, exposing the bone). This injury typically results from trauma and may affect weight-bearing ability and mobility. The severity and treatment depend on the extent of displacement and associated soft tissue damage.

Causes

Direct trauma to the left foot, such as a fall, sports injury, or heavy object impact, is the primary cause. Twisting forces or repetitive stress from activities like running may also lead to this type of fracture. The displacement occurs when the bone breaks and shifts out of its normal position, and the open nature indicates a break in the skin.

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

Symptoms

• Pain and tenderness in the midfoot (left foot)
• Swelling and bruising around the affected bone
• Difficulty bearing weight or walking
• Visible bone or wound at the fracture site (open fracture)
• Possible deformity or abnormal positioning of the foot

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging, such as X-rays, confirms the fracture and displacement. The open nature of the fracture is determined by inspecting the wound and assessing for bone exposure. Additional tests may evaluate soft tissue damage or infection risk.

Treatment Options

Treatment focuses on stabilizing the fracture and managing the open wound. This may include cleaning the wound, realigning the bone (reduction), and immobilizing the foot with a cast or splint. Surgical intervention may be needed for severe displacement or soft tissue repair. Antibiotics and tetanus prophylaxis are often administered for open fractures.

Prognosis and Follow-Up

Prognosis depends on the severity of displacement, wound healing, and adherence to treatment. Most fractures heal with proper care, but open fractures carry a higher risk of infection or delayed healing. Follow-up appointments monitor healing, adjust immobilization, and guide rehabilitation to restore function.

Complications

• Infection at the fracture site (higher risk with open fractures)
• Delayed union or nonunion of the bone
• Nerve or blood vessel damage
• Chronic pain or arthritis in the foot
• Difficulty returning to normal activities

Lifestyle & Prevention

• Wear supportive, properly fitting footwear during activities.
• Use protective gear in high-impact sports.
• Maintain bone health through a balanced diet and exercise.
• Avoid repetitive stress on the feet (e.g., excessive running on hard surfaces).
• Address foot pain promptly to prevent worsening injuries.

When to Seek Professional Help

Seek immediate medical attention if you experience:

• Severe pain, swelling, or deformity in the left foot.
• An open wound with visible bone.
• Inability to bear weight or walk.
• Signs of infection (e.g., redness, pus, fever).

Tips for Medical Coders

Document the fracture type (displaced), location (second metatarsal, left foot), and encounter details (initial, open) clearly. Note the open fracture status, as this impacts coding and care planning. Ensure documentation supports the severity and treatment approach for accurate code assignment.