Toxic effect of hydrogen cyanide, self-harm, init

This code signifies a patient presenting with adverse health effects resulting from exposure to hydrogen cyanide, where the exposure was deliberately self-inflicted. The "initial encounter" indicates that this is the first time the patient is receiving active treatment for this specific poisoning.

Apply this code for emergency department visits or initial hospital admissions where a patient has intentionally ingested or inhaled hydrogen cyanide with suicidal intent, and is now experiencing its toxic effects. This would include cases of acute cyanide poisoning from substances like potassium cyanide or sodium cyanide, used in a self-harm attempt.

• Always assign an additional code for the specific intent (e.g., T36-T65 with 5th or 6th character indicating intentional self-harm).
• Ensure documentation clearly states "intentional self-harm" and "initial encounter" to support this specific code.
• Do not use this code for accidental or assault-related exposures; different codes exist for those circumstances.