Insect bite (nonvenomous), left knee, initial encounter

This code signifies a nonvenomous insect bite affecting the left knee. It indicates the initial presentation of the injury, meaning the patient is receiving active treatment for the bite. The injury is superficial and does not involve a venomous creature.

Apply this code when documenting a patient's first visit for a non-toxic insect bite located specifically on the left knee. This would include common bites from mosquitoes, fleas, or gnats that cause localized irritation, swelling, or itching. It is appropriate for the initial evaluation and management of such an injury.

• Ensure the documentation clearly specifies "left knee" and "nonvenomous" to support this code.
• Confirm this is the initial encounter for treatment; subsequent visits for the same bite would require a different seventh character.
• Do not use for bites from venomous insects (e.g., spiders, scorpions) or for allergic reactions without a clear bite.