AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 4; New/Revised ICD-10-CM Codes

Inappropriate Sinus Tachycardia

Code I47.1, Supraventricular tachycardia, has been expanded and new codes have been created to identify inappropriate sinus tachycardia, so stated, as well as other and unspecified supraventricular tachycardia as follows:• I47.10, Supraventricular tachycardia, unspecified • I47.11, Inappropriate sinus tachycardia, so stated • I47.19, Other supraventricular tachycardia Inappropriate sinus tachycardia (IST) is a complex and rare cardiac arrhythmia, that is defined as a sinus heart rate >100 bpm at rest (with a mean 24-hour heart rate >90 bpm not due to primary causes) and associated with heart palpitations. In IST, the heart beats rapidly...

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