Toxic effect of organophosphate and carbamate

This code represents the adverse systemic effects resulting from exposure to organophosphate or carbamate compounds. These substances, commonly found in pesticides, can inhibit cholinesterase, leading to a cholinergic crisis affecting various organ systems. Symptoms can range from mild (nausea, dizziness) to severe (respiratory failure, seizures, coma).

Assign this code when documentation clearly indicates a patient's signs and symptoms are due to the toxic effects of organophosphate or carbamate poisoning. This typically occurs following accidental ingestion, occupational exposure, or intentional self-harm. Supporting documentation includes toxicology reports, physician notes detailing exposure history, and clinical findings consistent with cholinergic toxicity.

• Always code the specific manifestation(s) of the toxic effect first, if applicable, then sequence this code as a secondary diagnosis.
• Distinguish from allergic reactions or adverse effects of therapeutic drugs, which have different code assignments.
• Ensure documentation specifies organophosphate or carbamate; do not use for unspecified pesticide poisoning.