S92.35 Fracture of fifth metatarsal bone

Name of the Condition

• Technical Term: Fracture of fifth metatarsal bone
• ICD-10 Code: S92.35
• Common Name: Broken fifth metatarsal

Summary

A fracture of the fifth metatarsal bone is a break in the long bone on the outer edge of the foot, connecting the ankle to the fifth toe. This injury typically results from trauma or repetitive stress and can vary in severity, depending on the fracture type and alignment.

Causes

Direct trauma to the foot, such as a fall, twist, or impact, is the most common cause. Repetitive stress from activities like running or jumping may also lead to stress 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 or walking
• Possible deformity if the fracture is 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 determine its alignment.

Treatment Options

• Rest and reduced activity to promote healing
• Immobilization using a cast or boot to keep the bone aligned
• Physical therapy to restore strength and mobility after initial healing
• Pain management with medications or other therapies

Prognosis and Follow-Up

Most fractures of the fifth metatarsal heal with proper treatment, though recovery time varies by severity. Follow-up care may include monitoring for healing progress and gradual return to activity. Complications are rare but can occur if the fracture is severe or untreated.

Complications

• Delayed healing or nonunion
• Malunion (improper healing)
• Chronic pain or arthritis
• Nerve or tissue damage from the injury

Lifestyle & Prevention

• Wear supportive, well-fitting footwear during activities
• Gradually increase activity intensity to avoid overuse
• Maintain bone health through diet and exercise
• Use protective gear during high-risk sports

When to Seek Professional Help

Seek medical attention if you experience severe pain, swelling, or difficulty walking after an injury. Prompt evaluation is important to ensure proper diagnosis and treatment.

Tips for Medical Coders

Document the fracture type (e.g., displaced, nondisplaced) and any associated details (e.g., open vs. closed) to support accurate coding. Ensure the fifth metatarsal is specifically identified in the clinical record, as this distinguishes it from fractures of other metatarsal bones.