Toxic effect of substances, intentional self-harm, sequela

This code signifies the long-term or residual effects resulting from a deliberate act of self-poisoning with a substance not otherwise specified. These sequelae are chronic conditions or permanent injuries that manifest after the acute phase of the toxic exposure has resolved.

Apply this code when documenting conditions such as chronic organ damage (e.g., liver failure, neurological deficits) or psychological sequelae (e.g., persistent depression, anxiety) directly attributable to a past intentional self-harm attempt involving a toxic substance. This code is used for the late effects of the poisoning, not the acute event itself.

• Always sequence this code after the code for the specific sequela (e.g., chronic liver failure).
• Ensure documentation clearly links the current condition to a past intentional self-harm poisoning.
• Do not use this code for acute toxic effects; use the appropriate acute poisoning code with the "S" seventh character for sequela.