S92.353A Displaced fracture of fifth metatarsal bone, unspecified foot, initial encounter for closed fracture

Name of the Condition

• Technical Term: Displaced fracture of fifth metatarsal bone, unspecified foot, initial encounter for closed fracture
• ICD-10 Code: S92.353A
• Common Name: Broken fifth metatarsal (unspecified foot)

Summary

A displaced fracture of the fifth metatarsal bone in the unspecified foot occurs when the bone breaks and the fragments shift out of their normal alignment. This injury typically results from trauma or repetitive stress and requires medical evaluation to assess the extent of displacement and guide treatment. The fifth metatarsal is the long bone on the outer edge of the foot, and displacement can affect stability and healing. The "initial encounter for closed fracture" indicates this is the first episode of care for a fracture without an open wound.

Causes

Direct trauma to the foot, such as a fall, twist, or impact, is the primary cause. Sports injuries, missteps, or accidents involving the foot are common triggers. Repetitive stress from activities like running or jumping may also lead to fractures over time.

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 on the outer edge of the foot
• Swelling or bruising in the affected area
• Difficulty bearing weight on the foot
• Possible deformity if the fracture is severely displaced

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 evaluate the degree of displacement. The provider will also determine if the fracture is closed (no open wound) and document the initial encounter status.

Treatment Options

• Immobilization with a cast or walking boot to allow healing
• Pain management with over-the-counter or prescription medications
• Physical therapy to restore strength and mobility after healing
• Surgical intervention if the fracture is severely displaced or unstable

Prognosis and Follow-Up

Most displaced fractures of the fifth metatarsal heal with proper treatment, though recovery time varies. Follow-up appointments are necessary to monitor healing and adjust treatment as needed. Full recovery may take several weeks to months, depending on the severity of the fracture.

Complications

• Delayed healing or nonunion of the fracture
• Chronic pain or arthritis in the foot
• Nerve damage from the injury or treatment
• Difficulty returning to high-impact activities

Lifestyle & Prevention

• Wear supportive, properly fitting footwear during activities
• Gradually increase activity intensity to avoid overuse injuries
• Maintain bone health through a balanced diet and regular exercise
• Use protective gear during sports to reduce injury risk

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, inability to bear weight, visible deformity, or signs of infection (e.g., redness, warmth, fever) after a foot injury.

Tips for Medical Coders

Document the specific foot (right/left/unspecified) and encounter type (initial, subsequent, sequela) to ensure accurate coding. For S92.353A, confirm the fracture is closed and note the initial encounter status. Include details about displacement and any imaging findings to support the diagnosis.