ICD-10-CM > I00-I99 > I00-I02 > I01 I01 Rheumatic fever with heart involvement Non-Billable/Non-Specific Type 1 Excludes chronic diseases of rheumatic origin (I05-I09) unless rheumatic fever is also present or there is evidence of reactivation or activity of the rheumatic process. Codes I01.0Acute rheumatic pericarditisI01.1Acute rheumatic endocarditisI01.2Acute rheumatic myocarditisI01.8Other acute rheumatic heart diseaseI01.9Acute rheumatic heart disease, unspecified