ICD-10-CM
ICD-10 code for Syndrome apical ballooning (transient left ventricular): I51.81
The ICD-10-CM index points "Syndrome apical ballooning (transient left ventricular)" to I51.81, Takotsubo syndrome. I51.81 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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