Toxic effect of carb monx from utility gas, assault, sequela

This code signifies the long-term or residual health problems resulting from carbon monoxide poisoning due to intentional exposure to utility gas. It indicates that the initial poisoning event was an assault, and the patient is now experiencing persistent effects such as neurological deficits, cognitive impairment, or chronic organ damage.

Use this code when documenting a patient presenting with ongoing health issues directly attributable to a past carbon monoxide poisoning from utility gas, where the poisoning was determined to be an act of assault. This code is appropriate for follow-up visits or when the sequelae are first identified after the acute poisoning has resolved.

• Ensure documentation clearly links the current sequela to the past carbon monoxide poisoning from utility gas.
• Verify that the original poisoning event was explicitly identified as an assault.
• Always code the specific sequela (e.g., G92 for toxic encephalopathy) first, followed by this code as a secondary diagnosis.