Poisoning by expectorants, intentional self-harm, init

This code signifies a patient presenting with adverse effects from intentionally self-administering an excessive dose of an expectorant medication. The poisoning is a result of a deliberate act to cause harm to oneself, and this encounter represents the initial assessment and treatment for this event.

Apply this code when a patient is admitted to the emergency department or hospital following an overdose of an expectorant, such as guaifenesin, with clear documentation that the ingestion was a suicide attempt or other form of self-inflicted harm. This is appropriate for the first visit related to this specific poisoning incident.

• Ensure documentation explicitly states "intentional self-harm" or "suicide attempt" and identifies the substance as an expectorant.
• Always assign an additional code for any associated mental health conditions, such as depression (e.g., F32.x), if documented.
• This "A" initial encounter seventh character is used for the period of active treatment for the poisoning.