Poisoning by oth antidysrhythmic drugs, accidental, sequela

This code indicates a long-term consequence or complication arising from an accidental overdose or poisoning by an antidysrhythmic medication. These sequelae are conditions that persist after the acute phase of the poisoning has resolved, such as chronic organ damage or neurological deficits. The original poisoning event was unintentional.

Apply this code when documenting a patient presenting with a chronic condition directly attributable to an accidental poisoning by an antidysrhythmic drug that occurred in the past. This is appropriate for follow-up encounters addressing the lasting effects, not the acute poisoning itself. Examples include persistent cardiac arrhythmias, renal impairment, or neurological damage resulting from the prior overdose.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic kidney disease, specific arrhythmia).
• Ensure documentation clearly links the current condition to a past accidental antidysrhythmic drug poisoning.
• Do not use for acute poisoning events; those require the acute poisoning codes.