Toxic effect of noxious substnc eaten as food, slf-hrm, subs

This code signifies a patient presenting for follow-up care after intentionally ingesting a harmful, non-drug substance, such as a cleaning agent or pesticide, with the intent of self-harm. The initial toxic effect has already been addressed, and this encounter focuses on ongoing management, monitoring, or treatment related to that specific poisoning event.

Apply this code for subsequent encounters when a patient receives care for complications, monitoring, or ongoing treatment directly resulting from a prior intentional self-poisoning by a non-drug noxious substance consumed as food. This includes follow-up appointments for organ damage assessment, psychological evaluation, or continued medical management after the acute phase.

• Ensure the documentation clearly states "subsequent encounter" for the toxic effect.
• Verify the substance was ingested and not inhaled or absorbed through the skin.
• Confirm the intent was self-harm, not accidental or assault.