Toxic effect of methanol, intentional self-harm, sequela

This code signifies the long-term or residual health problems resulting from a deliberate act of self-poisoning with methanol. These sequelae can include chronic neurological damage, vision impairment (including blindness), or persistent metabolic disturbances that manifest after the acute phase of the poisoning has resolved.

Apply this code when documenting conditions that are a direct consequence of a past methanol self-poisoning attempt. This is appropriate for follow-up visits where the patient is being treated for the lasting effects, rather than the acute intoxication. It should be used after the acute phase of the methanol poisoning has passed.

• Always sequence this sequela code after the code for the specific residual condition (e.g., blindness, chronic kidney disease).
• Ensure documentation clearly links the current condition to a past intentional methanol self-harm event.
• Do not use this code for the initial acute poisoning event; use the acute poisoning code with the appropriate seventh character for initial encounter.