All ICD10 Codes

I48.9

Non-Billable
ChapterI00–I99
Ranksubcategory
Official Description

Unspecified atrial fibrillation and atrial flutter

Use a more specific code (2 billable)
I48.91Unspecified atrial fibrillationI48.92Unspecified atrial flutter
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).
General instructions are available for the parent sections:
View CH9 Notes

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I30-I5AOther forms of heart disease (I30-I5A)
I48Atrial fibrillation and flutter
I48.9Unspecified atrial fibrillation and atrial flutterNot billable
I48.91Unspecified atrial fibrillationBillable
I48.92Unspecified atrial flutterBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I48.9:

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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