Poisoning by halothane

This code signifies an adverse reaction or overdose specifically due to halothane, an inhaled anesthetic. It represents the toxic effects of halothane on the body, which can range from mild to severe systemic manifestations.

Apply this code when documentation clearly states poisoning, overdose, or adverse effects caused by halothane. This typically occurs in scenarios such as accidental overdose during anesthesia, intentional self-poisoning, or idiosyncratic reactions to the drug. Documentation should specify halothane as the causative agent.

• Always sequence this code first when it is the primary reason for the encounter.
• Consider an E-code (e.g., E854.0 for accidental poisoning by halothane) to further specify the circumstances of the poisoning.
• Distinguish from adverse effects in therapeutic use (e.g., allergic reaction to halothane), which would typically be coded differently.