Tox eff of carb monx fr incmpl combst dmst fuel, undet, sqla

This code signifies a long-term or residual health problem resulting from carbon monoxide poisoning due to the incomplete burning of various household fuels, excluding utility gas or motor vehicle exhaust. The circumstances surrounding the exposure are not definitively known. This indicates a lasting impact on the patient's health from a past, unclarified carbon monoxide exposure event.

Use this code when documenting a patient presenting with chronic neurological deficits, cardiac issues, or other persistent health conditions directly attributable to a prior carbon monoxide exposure from sources like wood stoves, kerosene heaters, or charcoal grills, where the intent of exposure is undetermined. This code is appropriate for follow-up encounters addressing the lasting effects of such an event, not the initial acute poisoning.

• Always ensure documentation clearly links the current sequela to a past carbon monoxide poisoning event.
• Confirm the source of carbon monoxide was from "other domestic fuels" and not utility gas or motor vehicle exhaust.
• Verify the "undetermined" intent of exposure is explicitly stated or clearly implied in the medical record.