421.0
Acute and subacute bacterial endocarditis
The ICD-9 code for acute and subacute bacterial endocarditis is 421.0.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 421.0 →