Supraventricular tachycardia, unspecified

This code represents an abnormally rapid heart rhythm originating above the ventricles, where the specific type of supraventricular tachycardia (SVT) has not been identified or documented. It indicates a general diagnosis of SVT without further specification of its underlying mechanism (e.g., AVNRT, AVRT, atrial tachycardia).

Use this code when the physician's documentation clearly states "supraventricular tachycardia" but provides no further detail regarding the specific type of SVT. This is appropriate for initial presentations or when diagnostic workup is incomplete. Avoid using this code if a more specific type of SVT is known and documented.

• Always seek clarification from the provider if a more specific type of SVT is suspected but not documented.
• Do not use this code if the documentation specifies a particular type of SVT, such as paroxysmal supraventricular tachycardia (I47.11) or atrial tachycardia (I47.19).
• Consider sequencing this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis if it is a co-existing condition impacting patient care.