ICD-9-CM diagnosis code (retired)
426.53 — Other bilateral bundle branch block
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 426.53
426.53 is an ICD-9-CM diagnosis code for other bilateral bundle branch block. 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, I45.2 (Bifascicular block). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- I45.2Bifascicular blockapproximate
Common questions about 426.53
What is the ICD-10 code for ICD-9 426.53?
- The GEMs map 426.53 to ICD-10-CM I45.2.
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.