Poisoning by inhaled anesthetics, undetermined, sequela

This code signifies a long-term or residual effect resulting from an inhalation anesthetic poisoning where the intent (e.g., accidental, intentional self-harm) could not be determined. These sequelae represent the lasting health problems directly attributable to the past toxic exposure.

Apply this code when documenting a patient presenting with a chronic condition or permanent injury that is a direct consequence of a previously experienced, unclassified poisoning by an inhaled anesthetic. This is used for follow-up encounters after the acute phase of the poisoning has resolved.

• Always sequence this sequela code after the code for the specific nature of the sequela (e.g., specific neurological deficit).
• Ensure documentation clearly links the current condition to a past inhaled anesthetic poisoning with an undetermined intent.
• This code is for the sequela only; do not use it for the initial acute poisoning event.