ICD-10 Code
International Classification of Diseases, 10th Revision
Jul 01, 2017
  ICD-10 Code for Cardiac arrhythmia, unspecified I49.9

I49.9 is a valid1 ICD 10 diagnosis code.

I49.9 is valid for submission for HIPAA-covered transactions.

Chapter 9 Diseases of the circulatory system (I00-I99)
Section I30-I52 Other forms of heart disease (I30-I52)
Category I49 Other cardiac arrhythmias

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Arrhythmia (cardiac) NOS
See also ICD 10 code for

Related Terms to “Cardiac arrhythmia, unspecified”

  • Action, heart
    • disorder - I49.9
    • irregular - I49.9
  • Arrhythmia(auricle)(cardiac)(juvenile)(nodal) (reflex)(sinus)(supraventricular)(transitory)(ventricle) - I49.9
  • Disorder(of)See also Disease
    • heart action - I49.9
  • Disturbance(s)See also Disease
    • rhythm, heart - I49.9
  • Dysrhythmia
    • cardiac - I49.9
  • Irregular, irregularity
    • action, heart - I49.9
  • Rhythm
    • disorder - I49.9
    • escape - I49.9
    • heart, abnormal - I49.9
See the 2017 ICD-10-CM Coding Guidelines.

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.