I45.6 Pre-excitation syndrome

Billable ICD-10-CM code, FY2026.

Applicable to

• Accelerated atrioventricular conduction
• Accessory atrioventricular conduction
• Anomalous atrioventricular excitation
• Lown-Ganong-Levine syndrome
• Pre-excitation atrioventricular conduction
• Wolff-Parkinson-White syndrome

MS-DRG index

Defines the logic of DRG(s) 308-310 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 426.7 Anomalous atrioventricular excitation (approximate)
• 426.81 Lown-Ganong-Levine syndrome (approximate)

Diagnosis Index entries for I45.6

• Accelerated atrioventricular conduction
• Accessory (congenital) › atrioventricular conduction
• Anomaly, anomalous (congenital) (unspecified type) › atrioventricular › excitation
• Excitation › anomalous atrioventricular
• Lown-Ganong-Levine syndrome
• Pre-excitation atrioventricular conduction
• Wolff-Parkinson-White syndrome

Nearby codes

• I45.19 Other right bundle-branch block
• I45.2 Bifascicular block
• I45.3 Trifascicular block
• I45.4 Nonspecific intraventricular block
• I45.5 Other specified heart block
• I45.6 Pre-excitation syndrome (this code)
• I45.8 Other specified conduction disorders
• I45.81 Long QT syndrome
• I45.89 Other specified conduction disorders
• I45.9 Conduction disorder, unspecified