S92.331A Displaced fracture of third metatarsal bone, right foot, initial encounter for closed fracture

Name of the Condition

• Displaced fracture of third metatarsal bone, right foot, initial encounter for closed fracture.

Summary

This condition involves a break in the third metatarsal bone of the right foot where the bone fragments have shifted out of their normal alignment. It is classified as a closed fracture, meaning the skin over the fracture site remains intact. The term "initial encounter" indicates this is the first time the patient is receiving treatment for this specific injury.

Causes

The fracture is typically caused by direct trauma to the foot, such as a heavy object falling on it or a forceful impact during an accident. Twisting injuries or sudden, forceful movements can also result in a displaced metatarsal fracture. High-impact activities, like sports or falls, are common triggers.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer) or activities with sudden stops and turns.
• Wearing ill-fitting or non-supportive footwear that fails to absorb shock.
• Conditions that weaken bone density, such as osteoporosis or vitamin D deficiency.
• Advanced age, which may reduce bone strength and increase fall risk.
• Previous foot injuries that compromise bone integrity.

Symptoms

• Sharp pain in the midfoot, particularly over the third metatarsal area.
• Swelling, bruising, or discoloration around the affected bone.
• Difficulty bearing weight or walking on the right foot.
• Visible deformity or abnormal positioning of the foot if the displacement is severe.
• Tenderness to touch in the midfoot region.

Diagnosis

A healthcare provider will conduct a physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, are used to confirm the fracture, determine the degree of displacement, and rule out other injuries. The provider will also evaluate the surrounding tissues for signs of damage.

Treatment Options

• Immobilization with a cast, walking boot, or stiff-soled shoe to stabilize the bone and promote healing.
• Rest and avoiding weight-bearing activities on the right foot for a period specified by the provider.
• Pain management using over-the-counter medications (e.g., acetaminophen, ibuprofen) or prescription options if needed.
• Follow-up imaging to monitor bone alignment and healing progress.
• Physical therapy may be recommended after initial healing to restore strength and mobility.

Prognosis and Follow-Up

Most displaced metatarsal fractures heal well with proper immobilization and rest, typically within 6–8 weeks. Full recovery depends on the severity of the displacement and adherence to treatment. Follow-up appointments are essential to assess healing and adjust care as needed. Return to normal activities, including sports, should be gradual and guided by the healthcare provider.

Complications

• Delayed healing or nonunion if the fracture does not align properly or is not immobilized correctly.
• Malunion, where the bone heals in a misaligned position, potentially causing long-term pain or deformity.
• Chronic pain or arthritis in the midfoot if the joint is affected.
• Nerve or soft tissue damage from the initial injury or improper healing.
• Increased risk of future fractures in the same area due to weakened bone.

Lifestyle & Prevention

• Wear supportive, well-fitted footwear appropriate for activities to reduce impact on the feet.
• Gradually increase the intensity of physical activity to avoid overuse injuries.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Use protective gear during high-impact sports to minimize trauma risk.
• Practice balance and strength exercises to reduce fall risk, especially in older adults.

When to Seek Professional Help

• Severe pain, swelling, or deformity in the foot that does not improve with rest.
• Inability to bear weight on the right foot or walk normally.
• Numbness, tingling, or coldness in the toes, which may indicate nerve or blood vessel involvement.
• Signs of infection, such as redness, warmth, or pus at the injury site.
• Worsening symptoms or failure to improve after initial treatment.

Tips for Medical Coders

Document the specific metatarsal (third) and laterality (right foot) clearly in the medical record, as these details are required for accurate coding. Note the displacement status and confirm the fracture is closed (skin intact) to support the code. Include the "initial encounter" designation to indicate this is the first treatment episode for the closed fracture. Ensure documentation aligns with the clinical findings to justify the code selection.