ICD-10-CM Code I48.21

Permanent atrial fibrillation

Version 2021 Billable Code

Valid for Submission

I48.21 is a billable code used to specify a medical diagnosis of permanent atrial fibrillation. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code I48.21 might also be used to specify conditions or terms like permanent atrial fibrillation.

ICD-10:I48.21
Short Description:Permanent atrial fibrillation
Long Description:Permanent atrial fibrillation

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I48.21 are found in the index:


Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Permanent atrial fibrillation

Diagnostic Related Groups

The ICD-10 code I48.21 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2020 through 09/30/2021.

  • 308 - CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH MCC
  • 309 - CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH CC
  • 310 - CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITHOUT CC/MCC

Replacement Code

I4821 replaces the following previously assigned ICD-10 code(s):

  • I48.2 - Chronic atrial fibrillation

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Other forms of heart disease (I30-I52)
      • Atrial fibrillation and flutter (I48)

Code History

  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021