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I49.9 - Cardiac arrhythmia, unspecified


The ICD 10 Code for Cardiac arrhythmia, unspecified is listed as I49.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: I49.9
Description: Cardiac arrhythmia, unspecified
  • Arrhythmia (cardiac) NOS
Diagnostic Related Groups
(MS-DRG v30.0)
308 - Cardiac Arrhythmia & Conduction Disorders W Mcc
309 - Cardiac Arrhythmia & Conduction Disorders W Cc
310 - Cardiac Arrhythmia & Conduction Disorders W/o Cc/mcc
Chapter Diseases of the circulatory system (I00-I99)
Block Other forms of heart disease (I30-I52)
Parent I49 - Other cardiac arrhythmias
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 427.9 - Cardiac dysrhythmia, unspecified
ICD-10-CM Siblings (same level / similar specificity) of I49.9:
I49.0 - Ventricular fibrillation and flutter
I49.1 - Atrial premature depolarization
I49.2 - Junctional premature depolarization
I49.3 - Ventricular premature depolarization
I49.4 - Other and unspecified premature depolarization
I49.5 - Sick sinus syndrome
I49.8 - Other specified cardiac arrhythmias