Toxic effect of other insecticides, undetermined, sequela

This code signifies a long-term or residual health problem resulting from a past exposure to an unspecified insecticide, where the intent of the exposure (accidental, intentional, assault) cannot be determined. The patient is no longer in the acute phase of poisoning, but is experiencing lasting effects.

Apply this code when documentation clearly indicates a sequela (e.g., chronic neurological deficits, organ damage) directly attributed to a prior insecticide exposure of unknown intent. This is appropriate for follow-up visits addressing these chronic conditions, not for the initial acute poisoning event.

• Always ensure "sequela" is explicitly documented or clearly implied as a chronic, lasting effect.
• Confirm the insecticide type is "other" and the intent is "undetermined" to use this specific code.
• Code the specific sequela first, followed by this code to indicate the cause.