I48.0 ICD-10-CM Code: Paroxysmal atrial fibrillation
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
I48.0Paroxysmal atrial fibrillation
ICD-10-CM diagnosis code · United States clinical modification
Where I48.0 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Other forms of heart disease (I30-I5A)
- 3
Category I48
Atrial fibrillation and flutter
- 4
Code I48.0
Paroxysmal atrial fibrillation
Notes for this code
Inclusion terms
No inclusion terms are listed for I48.0.
Code first
No “code first” instruction is listed for I48.0.
Use additional code
No “use additional code” instruction is listed for I48.0.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I48.0.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I48.0.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code I48.0 mean?
I48.0 is the FY 2027 U.S. ICD-10-CM code for “Paroxysmal atrial fibrillation.”
Is I48.0 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, I48.0 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is I48.0 located in ICD-10-CM?
I48.0 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Other forms of heart disease (I30-I5A) (I30–I5A), under category I48, Atrial fibrillation and flutter.
What coding notes are listed for I48.0?
No inclusion terms are listed for I48.0 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.