| A68 | Relapsing fevers |
| A78 | Q fever |
| B95 | Streptococcus, Staphylococcus, and Enterococcus as the cause of diseases classified elsewhere |
| B95.0 | Streptococcus, group A, as the cause of diseases classified elsewhere |
| I00 | Rheumatic fever without heart involvement |
| I01 | Rheumatic fever with heart involvement |
| I01.0 | Acute rheumatic pericarditis |
| I01.1 | Acute rheumatic endocarditis |
| I01.2 | Acute rheumatic myocarditis |
| I01.8 | Other acute rheumatic heart disease |
| I01.9 | Acute rheumatic heart disease, unspecified |
| I02 | Rheumatic chorea |
| I02.0 | Rheumatic chorea with heart involvement |
| I09 | Other rheumatic heart diseases |
| I09.0 | Rheumatic myocarditis |
| I09.1 | Rheumatic diseases of endocardium, valve unspecified |
| I09.2 | Chronic rheumatic pericarditis |
| I09.8 | Other specified rheumatic heart diseases |
| I09.89 | Other specified rheumatic heart diseases |
| I09.9 | Rheumatic heart disease, unspecified |
| I30 | Acute pericarditis |
| I30.1 | Infective pericarditis |
| L53.2 | Erythema marginatum |
| M04.1 | Periodic fever syndromes |
| M12.09 | Chronic postrheumatic arthropathy [Jaccoud], multiple sites |
| M32.11 | Endocarditis in systemic lupus erythematosus |
| M32.12 | Pericarditis in systemic lupus erythematosus |
| R50.9 | Fever, unspecified |