S92.334K Nondisplaced fracture of third metatarsal bone, right foot, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of third metatarsal bone, right foot, subsequent encounter for fracture with nonunion.

Summary

A nondisplaced fracture of the third metatarsal bone in the right foot is a break in the long bone connecting the ankle to the toes, where the bone fragments remain in their normal alignment. This code represents a subsequent encounter for a fracture that has failed to heal (nonunion) after an initial injury. Nonunion occurs when the bone does not properly fuse during the healing process, requiring ongoing medical management.

Causes

Direct trauma to the right foot, such as a fall, sports injury, or crush injury, is a common cause. Repetitive stress from activities like running or jumping can also lead to stress fractures that may progress to nonunion if not properly treated. Factors like inadequate immobilization, poor blood supply, or infection can contribute to the failure of the fracture to heal.

Risk Factors

• Participation in high-impact sports or activities with repetitive foot stress
• Wearing improper or non-supportive footwear
• Conditions that weaken bones, such as osteoporosis or diabetes
• Advanced age, which may reduce bone density and healing capacity
• Previous foot injuries or surgeries that affect blood flow or bone integrity
• Smoking or other lifestyle factors that impair healing

Symptoms

• Persistent pain and tenderness in the midfoot area of the right foot
• Swelling and bruising around the affected bone that does not improve over time
• Difficulty bearing weight or walking on the right foot
• Possible instability or clicking sensations in the foot during movement
• Minimal to no visible deformity due to the nondisplaced nature of the fracture

Diagnosis

A healthcare provider will perform a physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays or CT scans, are typically used to confirm the fracture and evaluate for nonunion. Additional tests, like bone scans or MRI, may be ordered to assess blood flow and tissue viability around the fracture site.

Treatment Options

Treatment depends on the severity of the nonunion and patient factors. Options may include immobilization with a cast or brace, bone stimulation therapies, or surgical intervention to realign and stabilize the fracture. Physical therapy may be recommended to restore strength and mobility once healing progresses.

Prognosis and Follow-Up

Prognosis varies based on the extent of the nonunion and treatment response. Regular follow-up appointments are necessary to monitor healing and adjust treatment plans. Most patients can expect gradual improvement with appropriate management, though some may experience long-term limitations in foot function.

Complications

• Chronic pain or discomfort in the affected foot
• Persistent swelling or instability
• Increased risk of future fractures due to weakened bone
• Potential need for additional surgeries if nonunion persists
• Reduced mobility or difficulty with daily activities

Lifestyle & Prevention

• Wear supportive, properly fitted footwear to reduce stress on the foot
• Avoid high-impact activities that may worsen the injury until cleared by a provider
• Maintain a healthy diet rich in calcium and vitamin D to support bone health
• Follow prescribed treatment plans, including immobilization and physical therapy
• Quit smoking or reduce alcohol use, as these can impair healing

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or difficulty walking that worsens over time. Contact your healthcare provider if symptoms do not improve with treatment or if you notice new signs of infection, such as redness, warmth, or drainage from the foot.

Tips for Medical Coders

This code is used for a subsequent encounter for a nondisplaced fracture of the third metatarsal bone in the right foot with nonunion. Document the encounter type (subsequent) and confirm the presence of nonunion through clinical evaluation or imaging. Ensure the right foot and third metatarsal bone are clearly documented to support code assignment.