Toxic effect of carb monx from mtr veh exhaust, acc, sqla

This code describes the long-term or residual effects resulting from accidental carbon monoxide poisoning specifically due to motor vehicle exhaust. These sequelae can manifest as neurological deficits, cognitive impairment, cardiac issues, or other chronic health problems that persist after the acute phase of the poisoning has resolved.

Use this code when documenting a patient presenting with chronic conditions or lasting damage directly attributable to a past accidental exposure to carbon monoxide from motor vehicle exhaust. This applies to follow-up encounters where the focus is on managing these persistent effects, rather than the initial acute poisoning event.

• Always sequence this sequela code after the code describing the specific residual condition (e.g., G92 for toxic encephalopathy).
• Ensure documentation clearly links the current condition to a past carbon monoxide poisoning event from motor vehicle exhaust.
• The "S" in the 7th character indicates sequela, meaning it's used for complications or conditions that arise as a direct result of a previous injury or illness.