S90.21 Contusion of great toe with damage to nail

Name of the Condition

• Contusion of great toe with damage to nail

Summary

A contusion of the great toe with damage to the nail is a bruise resulting from blunt force trauma that affects the soft tissues of the toe and causes injury to the nail structure. This condition typically causes localized pain, swelling, and discoloration, with visible damage to the nail, such as subungual hematoma or nail bed injury. The injury may involve the nail plate, nail bed, or surrounding tissues without breaking the skin.

Causes

Direct impact or trauma to the great toe, such as stubbing it against a hard object, dropping a heavy item on it, or injuries during physical activities. Sports-related accidents or accidental impacts with objects may also lead to this condition.

Risk Factors

• Participation in activities with a high risk of toe trauma, such as running, hiking, or contact sports.
• Wearing open-toed or poorly fitting footwear that exposes the great toe to injury.
• Occupations involving physical labor or environments where foot injuries are more likely.

Symptoms

• Pain and tenderness around the affected great toe.
• Localized swelling and discoloration (bruising) of the skin.
• Visible damage to the nail, such as subungual hematoma, nail bed injury, or nail plate disruption.
• Possible difficulty walking or applying pressure on the toe.

Diagnosis

Physical examination by a healthcare provider to assess tenderness, swelling, discoloration, and nail damage. A 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

• Resting the affected toe to avoid further injury.
• Applying ice to reduce pain and swelling.
• Elevating the toe to minimize swelling.
• Pain relief medications if needed.
• For significant nail damage, professional evaluation may be required to address nail bed injury or subungual hematoma.

Prognosis and Follow-Up

Most contusions heal within 1–2 weeks with proper care. Nail damage may take longer to resolve, depending on the extent of injury. Follow-up may be recommended if symptoms persist, worsen, or if there are concerns about infection or nail regrowth.

Complications

• Infection if the nail bed is injured or if the wound is not properly cared for.
• Chronic pain or sensitivity if the nail bed or surrounding tissues are severely damaged.
• Nail deformity or abnormal regrowth due to significant nail bed injury.

Lifestyle & Prevention

• Wear protective footwear during activities with a risk of toe injury.
• Ensure shoes fit properly to reduce exposure of the great toe to trauma.
• Use caution in environments where foot injuries are more likely, such as construction sites or sports fields.

When to Seek Professional Help

Seek medical attention if there is severe pain, inability to bear weight, signs of infection (e.g., redness, pus), or if the nail is completely avulsed or severely damaged.

Tips for Medical Coders

Document the presence of nail damage (e.g., subungual hematoma, nail bed injury) to support the code assignment. Ensure the injury is specifically to the great toe and that the mechanism of trauma is clearly recorded. Note any associated symptoms or complications that may affect coding specificity.