S90.3 Contusion of foot

Name of the Condition

• Contusion of foot

Summary

A contusion of the foot is a bruise resulting from blunt force trauma that damages underlying soft tissues without breaking the skin. It involves localized injury to the foot region, typically causing pain, swelling, and discoloration.

Causes

Direct impact or trauma to the foot, such as a fall, collision, or forceful contact with a hard object. Sudden twisting or bending of the foot during physical activity. Blunt force from objects striking the foot area.

Risk Factors

• Participation in sports or activities with high foot injury risk (e.g., running, jumping, contact sports).
• Wearing improper footwear or inadequate support.
• Pre-existing foot instability or previous injuries.
• Occupations or environments where foot injuries are more likely (e.g., construction, retail).

Symptoms

• Pain and tenderness in the affected area.
• Swelling and bruising (discoloration) of the skin.
• Limited range of motion or difficulty bearing weight.

Diagnosis

Physical examination to assess tenderness, swelling, and discoloration. Review of the patient’s history to determine the mechanism of injury. Imaging (e.g., X-rays) may be used to rule out fractures or other injuries.

Treatment Options

• Rest and elevation to reduce swelling.
• Ice application to alleviate pain and inflammation.
• Compression with bandages or braces for support.
• Pain relief medications if needed.

Prognosis and Follow-Up

Most contusions heal within 1–2 weeks with proper care. Follow-up may be recommended if symptoms worsen or persist, to ensure no underlying issues (e.g., fractures) are present.

Complications

• Prolonged pain or swelling if not properly managed.
• Increased risk of re-injury if the foot is not fully healed before resuming activity.
• Rarely, compartment syndrome or infection if severe trauma occurs.

Lifestyle & Prevention

• Wear supportive, well-fitting footwear during activities.
• Use protective gear (e.g., toe guards) in high-risk sports.
• Avoid walking or standing on uneven surfaces to reduce fall risk.
• Gradually increase activity intensity to prevent overuse injuries.

When to Seek Professional Help

Seek medical attention if:

• Pain is severe or unrelenting.
• Swelling or bruising worsens over time.
• Weight-bearing is impossible or causes extreme pain.
• Signs of infection (e.g., redness, warmth, pus) develop.

Tips for Medical Coders

Document the location (e.g., specific foot area) and mechanism of injury (e.g., direct trauma, fall) to support code assignment. Ensure clinical notes align with the diagnosis to justify the use of S90.3. Verify no deeper tissue damage or fractures are present, as these may require additional coding.