All ICD10 Codes

I48

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Atrial fibrillation and flutter

Use a more specific code (3 billable, 3 non-billable)
I48.0Paroxysmal atrial fibrillationI48.1Persistent atrial fibrillationhas subcodesI48.2Chronic atrial fibrillationhas subcodesI48.3Typical atrial flutterI48.4Atypical atrial flutterI48.9Unspecified atrial fibrillation and atrial flutterhas subcodes
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.-)

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I30-I5AOther forms of heart disease (I30-I5A)
I48Atrial fibrillation and flutterNot billable
I48.0Paroxysmal atrial fibrillationBillable
I48.1Persistent atrial fibrillationSubcodes
I48.2Chronic atrial fibrillationSubcodes
I48.3Typical atrial flutterBillable
I48.4Atypical atrial flutterBillable
I48.9Unspecified atrial fibrillation and atrial flutterSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I48:

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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