Poisoning by oth antidysrhythmic drugs, undetermined, init

This code signifies an adverse event resulting from the ingestion or exposure to an antidysrhythmic medication, where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is in the initial phase of treatment for this poisoning.

Apply this code when a patient presents with symptoms of poisoning from an antidysrhythmic drug, and the medical record does not specify whether the poisoning was accidental, intentional, or due to assault. This is appropriate for the first encounter where the poisoning is being evaluated and treated.

• Always assign an additional code for the specific antidysrhythmic drug involved, if known.
• Do not use this code if the intent of the poisoning is clearly documented (e.g., accidental, intentional self-harm).
• Ensure the "A" for initial encounter is appropriate; subsequent encounters would use "D" for subsequent or "S" for sequela.