S92.345G Nondisplaced fracture of fourth metatarsal bone, left foot, subsequent encounter for fracture with delayed healing

Name of the Condition

• Nondisplaced fracture of fourth metatarsal bone, left foot, subsequent encounter for fracture with delayed healing
• ICD-10 code: S92.345G

Summary

A nondisplaced fracture of the fourth metatarsal bone in the left foot is a break in the long bone of the forefoot where the bone fragments remain in their normal alignment. This code represents a subsequent encounter for a fracture with delayed healing, indicating the fracture is not progressing as expected during the healing process. Management focuses on monitoring healing and addressing factors contributing to the delay.

Causes

Direct trauma to the foot, such as a fall or impact during sports, is a common cause. Stress fractures may also occur from overuse, particularly in activities involving repetitive weight-bearing or sudden increases in physical activity. Delayed healing can result from inadequate immobilization, poor blood supply to the bone, or underlying conditions affecting bone health.

Risk Factors

• Participation in high-impact sports (e.g., running, basketball, soccer)
• Wearing improper or non-supportive footwear
• Conditions that weaken bones, such as osteoporosis or diabetes
• Advanced age, which may reduce bone density and balance
• Previous foot injuries or fractures
• Smoking or poor nutrition, which can impair healing

Symptoms

• Persistent pain localized to the outer midfoot area of the left foot
• Swelling and bruising around the affected bone
• Difficulty bearing weight or walking on the left foot
• Possible tenderness at the fracture site 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 evaluate alignment. Additional tests, like CT scans or MRIs, may be ordered to assess healing progress or identify underlying causes of delayed healing.

Treatment Options

Treatment may include continued immobilization with a cast or boot to stabilize the fracture. Pain management with over-the-counter or prescription medications may be recommended. Physical therapy to improve strength and mobility, as well as addressing any underlying conditions, can support healing. In some cases, surgical intervention may be considered if healing does not progress.

Prognosis and Follow-Up

Prognosis depends on the cause of delayed healing and adherence to treatment. Most fractures eventually heal with appropriate management, but recovery may take longer than usual. Regular follow-up appointments with imaging to monitor progress are typically required until healing is confirmed.

Complications

• Nonunion, where the bone fails to heal properly
• Malunion, where the bone heals in an incorrect position
• Chronic pain or stiffness in the foot
• Increased risk of future fractures

Lifestyle & Prevention

• Wear supportive, properly fitting footwear during activities
• Gradually increase physical activity to avoid overuse injuries
• Maintain a healthy diet rich in calcium and vitamin D to support bone health
• Avoid smoking, which can impair healing
• Use protective gear during high-impact sports

When to Seek Professional Help

Seek medical attention if pain worsens, swelling increases, or there is new bruising or deformity. Persistent difficulty bearing weight or signs of infection, such as redness, warmth, or fever, also warrant prompt evaluation.

Tips for Medical Coders

This code is used for a subsequent encounter for a nondisplaced fracture of the fourth metatarsal bone in the left foot with delayed healing. Documentation should specify the fracture site, laterality, and the presence of delayed healing. Ensure the encounter is classified as "subsequent" and that the reason for the delay (e.g., inadequate healing, nonunion) is clearly documented to support code assignment.