Poisoning by coronary vasodilators, accidental, init

This code signifies an accidental overdose or adverse reaction to medications specifically designed to widen coronary arteries, such as nitrates. The poisoning is unintentional, meaning the patient did not mean to harm themselves, and this is the first time they are being treated for this specific event.

Apply this code when a patient presents with symptoms of poisoning (e.g., hypotension, headache, flushing) due to inadvertently taking too much of a coronary vasodilator, or experiencing an unexpected adverse effect from a standard dose. This is appropriate for the initial hospital visit or encounter where the poisoning is first evaluated and treated.

• Ensure documentation clearly states the poisoning was accidental and not intentional self-harm.
• Confirm the medication involved is a coronary vasodilator; do not use for other cardiovascular drugs.
• The "A" seventh character indicates an initial encounter, meaning the patient is actively receiving treatment for the poisoning.