Toxic effect of venom of caterpillars, undetermined, init

This code signifies the adverse systemic or localized reaction resulting from exposure to the venomous hairs or spines of caterpillars. The reaction can range from dermatological irritation (e.g., rash, urticaria) to more severe systemic symptoms, depending on the caterpillar species and individual sensitivity.

Apply this code when documentation indicates a patient is experiencing symptoms due to caterpillar venom, and the intent of the exposure (accidental, intentional self-harm, assault) is not specified or cannot be determined. This code is specifically for the initial phase of treatment for the toxic effect.

• Ensure documentation clearly states the toxic effect is due to caterpillar venom.
• Confirm that the encounter is the initial treatment for this specific toxic effect.
• If the intent of exposure is known (e.g., accidental), a more specific code from the T63.43- series should be used.