Toxic effect of venom of caterpillars, self-harm, sequela

This code signifies a long-term or late-occurring health problem resulting from a caterpillar venom exposure that was deliberately self-inflicted. The initial acute toxic effects have resolved, but residual symptoms or conditions persist. This could include chronic skin lesions, neurological deficits, or other lasting systemic issues.

Apply this code when documenting a patient presenting with a sequela (e.g., scar, chronic pain, organ damage) directly attributable to a past intentional self-harm event involving caterpillar venom. This code is appropriate for follow-up encounters after the initial acute poisoning has been treated.

• Requires a seventh character "S" to indicate sequela, meaning the residual effect of a past injury or illness.
• Do not use for the initial acute poisoning; instead, use the acute phase code (T63.432A).
• Code any specific sequelae (e.g., chronic dermatitis, neuropathy) in addition to this code.