Poisoning by cardiotonic glycosides and drugs of similar action

This code signifies an adverse effect or overdose resulting from cardiotonic glycosides, such as digoxin, or other medications that exert similar effects on cardiac contractility. It represents the toxic manifestation of these drugs, which are primarily used to treat heart failure and arrhythmias. The poisoning can range from mild to severe, affecting various organ systems.

Apply this code when documentation clearly indicates a patient's condition is due to an overdose, accidental poisoning, or adverse reaction to cardiotonic glycosides. This includes situations where the patient ingested too much of the medication, was prescribed an incorrect dose, or experienced an idiosyncratic reaction. Supporting documentation would include physician notes detailing drug exposure, symptoms, and diagnostic findings consistent with cardiotonic glycoside toxicity.

• Always code the specific manifestation of the poisoning (e.g., cardiac arrhythmias, hyperkalemia) in addition to this code.
• Distinguish between poisoning (accidental, intentional, adverse effect) and therapeutic use; this code is for poisoning.
• Review the medication list and dosage carefully to confirm the drug causing the toxicity falls under "cardiotonic glycosides and drugs of similar action."