Insect bite (nonvenomous), right knee, subsequent encounter

This code signifies a non-venomous insect bite located on the right knee that is being addressed in a follow-up visit. The patient is presenting for continued care, monitoring, or treatment of the initial bite, which is no longer in its acute phase.

Apply this code when a patient returns for a subsequent visit related to a non-venomous insect bite on their right knee. This includes scenarios such as wound check, dressing changes, assessment of healing, or management of persistent symptoms like itching or mild inflammation after the initial encounter.

• Ensure documentation clearly specifies "right knee" and "subsequent encounter."
• Verify the bite is explicitly stated as non-venomous; otherwise, a different code may be appropriate.
• Pair with an external cause code (e.g., W57.XXXD) to indicate the cause of the injury.