Toxic effect of venom of caterpillars, undetermined, subs

This code signifies a toxic reaction to caterpillar venom, where the specific intent (accidental, intentional self-harm, assault) is not documented. It is used for encounters following the initial treatment of the toxic effect.

Apply this code when a patient presents for follow-up care, such as wound checks, medication adjustments, or management of lingering symptoms, after an initial toxic exposure to caterpillar venom. The original incident's circumstances must remain unclear or unspecified in the medical record.

• Ensure the documentation clearly indicates a subsequent encounter for the toxic effect.
• Verify that the intent of the exposure is not specified in the medical record to justify "undetermined."
• Do not use for initial encounters; a different 7th character (A) would be appropriate for the first visit.