I49.89

I49.89: Other specified cardiac arrhythmias not elsewhere classified

Billable / specific codeICD-10-CM

I49.89 is a billable, specific ICD-10-CM code for other specified cardiac arrhythmias not elsewhere classified. It is valid for submission on a claim.

Check I49.89 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Coronary sinus rhythm disorder
Ectopic rhythm disorder
Nodal rhythm disorder

Excludes2 inherited from the categories above I49.89

Not part of this code, but both may be coded when both are present.

Written on I49: Other cardiac arrhythmias

bradycardia NOS (R00.1)
neonatal dysrhythmia (P29.1-)
sinoatrial bradycardia (R00.1)
sinus bradycardia (R00.1)
vagal bradycardia (R00.1)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I49.89 is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52458Automatic External Defibrillators - Policy Article
A56476Billing and Coding: Cardiac Radionuclide Imaging
A56602Billing and Coding: Cardiac Rhythm Device Evaluation
A56625Billing and Coding: Echocardiography

Alphabetic index entries that lead here

Bradyarrhythmia, cardiac
Nodal rhythm
Arrhythmia›sinus
Arrhythmia›specified NEC
Fibrillation›cardiac
Fibrillation›heart
Flutter›heart
Rhythm›atrioventricular nodal
Rhythm›nodal
Sinus›arrhythmia
Wandering›pacemaker(heart)
Rhythm›disorder›coronary sinus

Code history

addedFY2024-FY2027
Other specified cardiac arrhythmias not elsewhere classified