All ICD10 Codes

I49

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Other cardiac arrhythmias

Use a more specific code (6 billable, 2 non-billable)
I49.0Ventricular fibrillation and flutterhas subcodesI49.1Atrial premature depolarizationI49.2Junctional premature depolarizationI49.3Ventricular premature depolarizationI49.4Other and unspecified premature depolarizationhas subcodesI49.5Sick sinus syndromeI49.8Other specified cardiac arrhythmiasI49.9Cardiac arrhythmia, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • bradycardia NOS (R00.1)
  • neonatal dysrhythmia (P29.1-)
  • sinoatrial bradycardia (R00.1)
  • sinus bradycardia (R00.1)
  • vagal bradycardia (R00.1)
Code First
  • cardiac arrhythmia complicating:
  • abortion or ectopic or molar pregnancy (O00-O07, O08.8)
  • obstetric surgery and procedures (O75.4)

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I30-I5AOther forms of heart disease (I30-I5A)
I49Other cardiac arrhythmiasNot billable
I49.0Ventricular fibrillation and flutterSubcodes
I49.1Atrial premature depolarizationBillable
I49.2Junctional premature depolarizationBillable
I49.3Ventricular premature depolarizationBillable
I49.4Other and unspecified premature depolarizationSubcodes
I49.5Sick sinus syndromeBillable
I49.8Other specified cardiac arrhythmiasBillable
I49.9Cardiac arrhythmia, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I49:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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