S92.311B Displaced fracture of first metatarsal bone, right foot, initial encounter for open fracture

Name of the Condition

• Displaced fracture of first metatarsal bone, right foot, initial encounter for open fracture
• ICD-10 Code: S92.311B

Summary

This condition involves a break in the first metatarsal bone of the right foot, where the bone fragments are displaced from their normal alignment. The first metatarsal is the long bone connecting the big toe to the midfoot. Displacement occurs when the bone pieces shift out of position, often due to trauma. This is an open fracture, meaning the skin is broken, and it is an initial encounter, indicating the first time the fracture is being treated.

Causes

Direct trauma or impact to the right foot is the primary cause. Common scenarios include dropping a heavy object, a sports injury (e.g., twisting the foot during activity), or a fall. High-force impacts can force the bone fragments out of alignment, leading to displacement and an open wound.

Risk Factors

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

Symptoms

• Intense pain at the injury site
• Swelling and bruising around the right foot
• Difficulty bearing weight on the affected foot
• Visible deformity if the fracture is severely displaced
• Open wound at the fracture site

Diagnosis

A healthcare provider will perform a physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, are typically used to confirm the fracture and determine the extent of displacement. The open nature of the fracture may also be evaluated during the exam.

Treatment Options

Treatment focuses on stabilizing the fracture and preventing infection. This may include cleaning the wound, immobilizing the foot with a cast or splint, and possibly surgery to realign the bone fragments. Antibiotics may be prescribed to reduce infection risk.

Prognosis and Follow-Up

With proper treatment, most patients recover fully, though healing time depends on the severity of the fracture. Follow-up appointments are necessary to monitor healing and adjust treatment as needed. Physical therapy may be recommended to restore strength and mobility.

Complications

• Infection at the open wound site
• Delayed healing or nonunion of the fracture
• Chronic pain or arthritis in the affected area
• Nerve or blood vessel damage

Lifestyle & Prevention

• Wear supportive, properly fitting footwear during activities.
• Use protective gear in high-risk sports.
• Maintain bone health through a balanced diet and regular exercise.
• Avoid activities that increase fall or injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, an open wound, or difficulty bearing weight after an injury to the right foot.

Tips for Medical Coders

Document the specific location (right foot), displacement, open fracture status, and initial encounter clearly. Ensure the open fracture is noted to distinguish it from closed fractures, and confirm the first metatarsal bone is specified.