Toxic eff of harmful algae and algae toxins, slf-hrm, init

This code signifies a patient presenting with adverse health effects resulting from deliberate self-poisoning using harmful algae or their toxins. This could involve ingestion, inhalation, or skin contact with toxic algal blooms or extracted algal toxins with the intent to cause self-harm. The "initial encounter" designation indicates the patient is receiving active treatment for the acute toxic effects.

Apply this code when documentation clearly states a patient intentionally exposed themselves to harmful algae or their toxins, leading to a toxic reaction. This would be appropriate for emergency department visits or initial hospital admissions where the primary reason for admission is the acute management of this self-inflicted poisoning.

• Always confirm the intent was self-harm, not accidental exposure or assault.
• Ensure the documentation specifies "algae" or "algae toxins" as the causative agent.
• The "A" seventh character indicates the initial encounter for this condition; subsequent encounters for treatment of sequelae would require different seventh characters.