Toxic effect of herbicides and fungicides, accidental, subs

This code signifies an adverse health effect resulting from unintentional exposure to herbicides or fungicides. The patient is experiencing symptoms or complications directly attributable to the toxic properties of these substances. This particular code is used for follow-up care after the initial treatment.

Apply this code for patients presenting for ongoing management of symptoms or complications from accidental herbicide/fungicide poisoning. This includes follow-up appointments for organ damage, neurological sequelae, or persistent dermatological issues. It is appropriate for any encounter after the initial acute care phase.

• Ensure the documentation clearly states the exposure was accidental and identifies the substance as a herbicide or fungicide.
• Verify the encounter is for follow-up care, not the initial presentation or acute treatment.
• Always code an external cause code (e.g., X49.-) to provide additional detail about the circumstances of the poisoning.