Toxic effect of halogenated insecticides, undetermined, subs

This code signifies an adverse health effect resulting from exposure to halogenated insecticides, where the intent of the exposure (accidental, intentional self-harm, assault) cannot be determined. The patient is presenting for follow-up care or ongoing treatment related to this toxic exposure.

Apply this code for patients receiving continued care for symptoms or conditions caused by halogenated insecticide poisoning when the circumstances of exposure are unknown. This is appropriate for subsequent visits after the initial diagnosis and treatment have been established. It should be used when documentation clearly indicates an undetermined intent of exposure.

• Ensure documentation specifies "undetermined" intent of exposure; otherwise, a more specific intent code should be chosen.
• Confirm this is a subsequent encounter; for initial encounters, use the appropriate "A" seventh character.
• Always sequence this code after any codes for specific manifestations of the poisoning.