2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Conduction Disorders 426.* > 2006 ICD-9-CM Diagnosis 426.81 Lown-ganong-levine syndrome View the most recent version of ICD-9-CM 426.81 A form of pre-excitation characterized by a short PR interval associated with a normal QRS complex. 426.81 is a specific code that can be used to specify a diagnosis 426.81 contains 4 index entries View the ICD-9-CM Volume 1 426.* hierarchy Alternate Terminology Syndrome of short P-R interval, normal QRS complexes, and supraventricular tachycardias  Index entries containing 426.81: Lown (-Ganong)-Levine syndrome (short P-R interval, normal QRS complex, and paroxysmal supraventricular tachycardia) 426.81 Short, shortening, shortness P-R interval syndrome 426.81 Syndrome - see also Disease Lown (-Ganong)-Levine (short P-R internal, normal QRS complex, and supraventricular tachycardia) 426.81 short P-R interval 426.81