Corrosion of third degree of left foot, initial encounter

This code signifies a severe chemical burn affecting the left foot, characterized by full-thickness tissue destruction. The injury extends through all layers of the skin, potentially damaging underlying fat, muscle, or bone, and is the first time the patient is receiving treatment for this specific injury.

Apply this code when documenting a patient presenting for initial medical attention due to a third-degree chemical burn on their left foot. This includes scenarios such as exposure to strong acids, alkalis, or other corrosive substances resulting in deep tissue damage.

• Ensure documentation clearly specifies "third degree" and "left foot" for accurate code assignment.
• Verify the cause of the burn is chemical (corrosion) rather than thermal or electrical.
• Confirm this is the initial encounter for treatment of this specific injury; subsequent encounters will use different seventh characters.