Toxic effect of methyl alcohol

This code signifies the adverse health effects resulting from exposure to or ingestion of methyl alcohol (methanol). It encompasses the systemic toxicity that occurs when methanol is metabolized, leading to conditions such as metabolic acidosis, visual disturbances, and central nervous system depression.

Use this code for patients presenting with symptoms and signs of methanol poisoning, often after accidental or intentional ingestion of methanol-containing products (e.g., windshield washer fluid, denatured alcohol). Documentation should clearly state exposure to methyl alcohol and the resulting toxic effects.

• Always sequence this code as the primary diagnosis when the toxic effect is the reason for the encounter.
• Do not confuse with ethanol (ethyl alcohol) intoxication, which has distinct coding.
• Look for specific documentation of methanol exposure and the resulting clinical manifestations, such as optic neuropathy or severe metabolic acidosis.