Poisoning by oth antihypertensive drugs, undetermined, init

This code signifies an adverse event resulting from an unknown type of antihypertensive medication, where the intent (accidental, intentional self-harm, assault) cannot be determined. The patient is in the acute phase of treatment for this poisoning.

Apply this code when a patient presents with symptoms of poisoning from an antihypertensive drug, but the specific drug is not identified, and the circumstances surrounding the poisoning are unclear. This is appropriate for the initial visit or encounter for this specific poisoning event.

• Ensure documentation clearly states "undetermined" intent for the poisoning.
• Confirm this is the first encounter for the poisoning; subsequent care would use a different seventh character.
• Always sequence this code after any codes for the specific manifestations of the poisoning.