Toxic effect of methanol, assault, sequela

This code signifies a long-term or residual health problem resulting from a methanol poisoning that occurred due to an intentional act of harm by another person. The patient is no longer in the acute phase of the poisoning but is experiencing lasting effects. These sequelae can range from neurological damage to organ dysfunction.

Apply this code when documenting chronic conditions or permanent impairments directly attributable to a past methanol intoxication that was inflicted as an assault. Examples include persistent vision loss, kidney failure, or brain damage identified months or years after the initial event. This code is used after the acute phase of treatment for the poisoning has concluded.

• Always sequence this sequela code after the code for the specific residual condition (e.g., H54.0 for blindness).
• Ensure documentation clearly links the current condition to a past methanol poisoning and specifies the assault intent.
• Do not use this code for acute methanol poisoning; refer to the acute T51.1X1- or T51.1X2- codes for initial encounters or subsequent care of the acute event.