S92.356A Nondisplaced fracture of fifth metatarsal bone, unspecified foot, initial encounter for closed fracture

Name of the Condition

• Technical Term: Nondisplaced fracture of fifth metatarsal bone, unspecified foot, initial encounter for closed fracture
• ICD-10 Code: S92.356A
• Common Name: Broken fifth metatarsal (unspecified foot, closed, initial encounter)

Summary

A nondisplaced fracture of the fifth metatarsal bone in the unspecified foot is a break in the long bone on the outer edge of the foot where the bone fragments remain in their normal alignment. This injury is classified as closed (no skin penetration) and is documented during the initial encounter. It typically results from trauma or repetitive stress and requires evaluation to confirm the fracture type and guide treatment.

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 mild discomfort without visible deformity

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 verify that it is nondisplaced and closed.

Treatment Options

• Rest and reduced activity to allow healing
• Immobilization with a cast, boot, or brace to stabilize the foot
• Pain management with over-the-counter or prescription medications
• Physical therapy to restore strength and mobility once healing progresses

Prognosis and Follow-Up

Most nondisplaced fractures heal well with proper immobilization and rest. Follow-up appointments are typically scheduled to monitor healing and adjust treatment as needed. Full recovery may take several weeks to months, depending on the individual case.

Complications

• Delayed healing or nonunion if the fracture is not properly immobilized
• Chronic pain or stiffness in the foot
• Increased risk of future fractures in the same area

Lifestyle & Prevention

• Wear supportive footwear appropriate for activities
• Gradually increase activity intensity to avoid overuse injuries
• Maintain bone health through a balanced diet and regular exercise
• Use proper techniques during sports or physical activities 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, or pus) at the injury site.

Tips for Medical Coders

Document the encounter as initial for a closed, nondisplaced fracture of the fifth metatarsal bone in the unspecified foot. Ensure the record specifies the fracture type (nondisplaced), encounter stage (initial), and whether the fracture is open or closed (closed in this case). Include details about the affected foot (unspecified) and any contributing factors to support code assignment.