Toxic effect of venom of caterpillars, accidental, init

This code signifies an accidental poisoning due to contact with caterpillar venom, resulting in a toxic reaction. It specifically captures unintentional exposure to the irritants or toxins produced by caterpillars, leading to various localized or systemic symptoms. This code is for the initial presentation of such an injury.

Apply this code when a patient presents to an emergency department, urgent care, or physician's office with symptoms such as dermatitis, rash, pain, or other systemic reactions directly attributable to accidental contact with a caterpillar. This is appropriate for the first encounter for treatment of the venomous exposure.

• Ensure documentation clearly states the exposure was accidental and due to a caterpillar.
• Always use in conjunction with an external cause code (e.g., W57.XXXA for contact with nonvenomous arthropods, if no specific caterpillar external cause is available, or a more specific external cause if one exists for venomous caterpillars).
• Do not use for allergic reactions to caterpillars if the primary issue is an allergic response rather than a direct toxic effect of the venom.