Takotsubo syndrome

This code represents Takotsubo cardiomyopathy, also known as stress-induced cardiomyopathy or "broken heart syndrome." It is a temporary heart condition where extreme emotional or physical stress leads to a sudden weakening of the left ventricle, mimicking a heart attack but without coronary artery blockages.

Use this code when documentation clearly indicates a diagnosis of Takotsubo syndrome, typically following a significant stressor. This diagnosis is often made after ruling out acute myocardial infarction and observing characteristic left ventricular apical ballooning on imaging, which resolves over time.

• Differentiate from acute myocardial infarction (I21.-) and other cardiomyopathies (I42.-) based on the absence of obstructive coronary artery disease.
• Ensure documentation specifies the diagnosis of Takotsubo syndrome; "stress cardiomyopathy" alone may not be sufficient without further clarification.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter, especially in the acute phase.