S92.311D Displaced fracture of first metatarsal bone, right foot, subsequent encounter for fracture with routine healing

Name of the Condition

• Displaced fracture of first metatarsal bone, right foot, subsequent encounter for fracture with routine healing
• ICD-10 Code: S92.311D

Summary

This condition involves a displaced fracture of the first metatarsal bone in the right foot, where the bone fragments are out of alignment but are healing as expected. The first metatarsal is the long bone connecting the big toe to the midfoot. This code applies to a follow-up visit after the initial injury, indicating the fracture is progressing normally without complications. The "subsequent encounter" designation reflects ongoing care during the healing phase, while "routine healing" confirms the fracture is following a typical recovery trajectory.

Causes

Direct trauma or impact to the right foot is the primary cause of the initial fracture. 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. The subsequent encounter code is used during follow-up visits to monitor the healing process, not to describe the initial cause.

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

• Mild to moderate pain at the injury site, decreasing over time
• Swelling and bruising around the right foot, gradually resolving
• Improved ability to bear weight on the affected foot compared to initial injury
• No visible deformity if the fracture is healing properly

Diagnosis

A healthcare provider will perform a physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, may be used to confirm the fracture is healing with proper alignment and no signs of delayed union or nonunion. The provider will evaluate the progress of healing and determine if further intervention is needed.

Treatment Options

• Immobilization with a cast or walking boot to protect the fracture during healing
• Pain management with over-the-counter or prescription medications
• Physical therapy to restore strength and mobility once healing allows
• Weight-bearing as tolerated, guided by the provider’s recommendations
• Follow-up visits to monitor healing progress

Prognosis and Follow-Up

With routine healing, most displaced fractures of the first metatarsal bone heal within 6–8 weeks. Full recovery of strength and function is typical, though some residual stiffness or mild discomfort may persist. Follow-up appointments are important to ensure the fracture is healing correctly and to adjust treatment as needed. Return to normal activities, including sports, is usually possible after clearance from a healthcare provider.

Complications

• Delayed healing or nonunion if the fracture does not heal properly
• Malunion, where the bone heals in a misaligned position
• Chronic pain or stiffness in the foot
• Arthritis in the big toe joint over time
• Nerve or soft tissue damage from the initial injury

Lifestyle & Prevention

• Wear supportive, properly fitting footwear to reduce injury risk
• Use protective gear during high-impact sports
• Maintain bone health through a balanced diet rich in calcium and vitamin D
• Avoid activities that increase fall risk, such as walking on uneven surfaces
• Gradually increase activity levels to prevent overuse injuries

When to Seek Professional Help

• Severe or worsening pain that does not improve with rest or medication
• New or increasing swelling, bruising, or deformity
• Inability to bear weight on the foot after initial improvement
• Signs of infection, such as redness, warmth, or drainage at the injury site
• Numbness or tingling in the foot or toes

Tips for Medical Coders

This code is specific to a displaced fracture of the first metatarsal bone in the right foot during a subsequent encounter with routine healing. Document the encounter type (subsequent) and healing status (routine) clearly in the medical record. Ensure the laterality (right foot) and fracture details (displaced) are accurately reflected. The code is used for follow-up care, so documentation should support the ongoing management of the fracture and confirm normal healing progress.