Toxic effect of other hydrocarbon gas

This code signifies adverse health effects resulting from exposure to hydrocarbon gases other than those specifically classified elsewhere (e.g., carbon monoxide). It covers systemic or localized toxicity due to inhalation, ingestion, or skin contact with these substances. The effects can range from mild irritation to severe organ damage or death.

Apply this code when documentation clearly indicates a patient's illness or injury is directly attributable to the toxic effects of an unspecified hydrocarbon gas. This includes accidental exposures, occupational exposures, or intentional misuse. Supporting documentation should detail the specific hydrocarbon involved (if known but not separately classified), the route of exposure, and the resulting clinical manifestations.

• Always identify the specific hydrocarbon gas if possible; more specific codes exist for many common hydrocarbon toxins.
• Sequence this code as the primary diagnosis when the toxic effect is the reason for the encounter.
• Do not use for allergic reactions or adverse effects from therapeutic use of hydrocarbon-containing medications.