ICD-9-CM diagnosis code (retired)
427.42 — Ventricular flutter
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 427.42
427.42 is an ICD-9-CM diagnosis code for ventricular flutter. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, I49.02 (Ventricular flutter). The match is exact.
ICD-10-CM equivalents
- I49.02Ventricular flutterexact match
Common questions about 427.42
What is the ICD-10 code for ICD-9 427.42?
- The GEMs map 427.42 to ICD-10-CM I49.02.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.