ICD-10-CM>I00-I99>I30-I5A>I33I33Acute and subacute endocarditisNon-Billable/Non-SpecificType 1 Excludesacute rheumatic endocarditis (I01.1)endocarditis NOS (I38)CodesI33.0Acute and subacute infective endocarditisI33.9Acute and subacute endocarditis, unspecified