Poisoning by therapeutic gases, accidental, init

This code signifies an adverse event resulting from the unintended or accidental exposure to therapeutic gases, such as oxygen, nitrous oxide, or medical air, leading to a toxic effect. This typically occurs due to errors in administration, equipment malfunction, or improper handling, causing the patient to experience symptoms of poisoning.

Apply this code when a patient presents with symptoms of poisoning directly attributable to the accidental administration or inhalation of a therapeutic gas. This includes scenarios like oxygen toxicity from excessive flow rates, carbon dioxide poisoning from rebreathing in a faulty anesthesia circuit, or adverse reactions to inhaled nitric oxide due to incorrect dosage. This specific code is for the initial phase of treatment.

• Ensure documentation clearly states the poisoning was accidental and identifies the specific therapeutic gas involved.
• Always assign an additional code for the specific manifestation of the poisoning (e.g., respiratory failure, neurological symptoms).
• Verify that the encounter is the initial one for this specific poisoning event; subsequent encounters would use a different seventh character.