Poisoning by oth antihypertensive drugs, assault, subs

This code signifies a patient presenting with adverse effects or toxicity resulting from the intentional administration of an antihypertensive medication by another person, with the intent to cause harm. The encounter is not the initial presentation for this specific poisoning event, but rather a follow-up or subsequent visit for ongoing management or complications.

Use this code for patients returning for follow-up care after an initial diagnosis of poisoning by an antihypertensive drug due to an assault. This includes visits for monitoring organ damage, managing persistent symptoms, or addressing complications that arise after the acute phase of the poisoning.

• Always assign an additional code for the specific antihypertensive drug involved, if known.
• Ensure the "D" seventh character is appropriate for a subsequent encounter; "A" is for initial, "S" for sequela.
• Consider external cause codes (e.g., Y09.-) to provide further detail about the assault.