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I49.01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM I49.01 became effective on October 1, 2024. This is the American ICD-10-CM version of I49.01 - other international versions of ICD-10 I49.01 may differ.
I49.01 is a billable diagnosis code used to specify a medical diagnosis of ventricular fibrillation. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients.
I49.01 is a valid billable ICD-10 diagnosis code for Ventricular fibrillation. It is found in the 2025 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2024 - Sep 30, 2025. ↓ See below for any exclusions, inclusions or special notations
Get crucial instructions for accurate ICD-10-CM I49.01 coding with all applicable Excludes 1 and Excludes 2 notes from the section level conveniently shown with each code.
View the general equivalency mappings (GEMs) between the ICD-9 and ICD-10 code sets. View relationships (or crosswalks) between code sets.
Get crucial instructions for accurate ICD-10-CM I49.0 coding with all applicable Excludes 1 and Excludes 2 notes from the section level conveniently shown with each code.
ICD-10: I49.01 - Ventricular fibrillation... About the Code Lookup. This site is dedicated exclusively to helping you look up ICD-10 codes, quickly access the codes you use most, and become more comfortable with the new code set in general. No ads, no spam, and it's free for everybody.
ICD-10 changes: ICD-10 also offers separate codes for fibrillation and flutter involving the ventricles. As with the ICD-9 range, notes for the ICD-10 range reference proper coding for arrhythmia related to obstetric encounters. For ICD-10, you should “code first” tachycardia complicating: Obstetric surgery and procedures (O75.4).
VF is a WCT caused by irregular electrical activity and characterized by a ventricular rate of usually greater than 300 with discrete QRS complexes on the electrocardiogram (ECG). QRS morphology in VF varies in shape, amplitude, and duration with a prominent irregular rhythm.