Toxic effect of carb monx from unsp source, self-harm, init

This code signifies poisoning due to carbon monoxide exposure, specifically when the patient intentionally inflicted the harm upon themselves. The source of the carbon monoxide is not specified. This diagnosis indicates the patient is in the acute phase of treatment for the toxic effects.

Apply this code when a patient presents with symptoms of carbon monoxide poisoning, and the medical record clearly documents the intent as self-harm. This is appropriate for the initial visit or encounter where the patient is actively being treated for the poisoning. Examples include suicide attempts via car exhaust or charcoal burning indoors.

• Always verify the intent of self-harm through physician documentation.
• Do not use this code if the intent is accidental or undetermined; different codes apply for those scenarios.
• Ensure this is the initial encounter for the poisoning; subsequent encounters will require different seventh characters.