I47.9
ICD-10-CMThis code represents a type of rapid heart rate that starts and stops suddenly, without a clear underlying cause being identified. It signifies an episode of abnormally fast heartbeats originating from either the atria or ventricles, where the specific type of paroxysmal tachycardia is not documented.
Use this code when the medical record indicates a diagnosis of paroxysmal tachycardia but lacks specificity regarding its origin (e.g., supraventricular, ventricular). This applies when the physician documents "paroxysmal tachycardia, unspecified" or similar phrasing without further detail.
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