Paroxysmal tachycardia, unspecified

This code represents an episode of rapid heart rate that begins and ends abruptly, without a specified underlying cause or specific type of paroxysmal tachycardia. It indicates an intermittent, sudden onset of abnormally fast heart rhythms that are not further characterized.

Use this code when the medical record documents "paroxysmal tachycardia" without further specification of its origin (e.g., atrial, ventricular, supraventricular). This code is appropriate when the physician has not identified the specific type of paroxysmal tachycardia or when the documentation is insufficient to assign a more specific code.

• Avoid using this code if the documentation specifies the type of paroxysmal tachycardia (e.g., paroxysmal supraventricular tachycardia, paroxysmal ventricular tachycardia); instead, use the more specific code.
• Query the provider for clarification if the documentation mentions "paroxysmal tachycardia" but also provides clues that could lead to a more precise diagnosis.
• This code is a "catch-all" for unspecified paroxysmal tachycardias and should be used only when no further detail is available.