A00-A09
- Intestinal infectious diseases (A00-A09)
A15-A19
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
- congenital tuberculosis (P37.0)
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)
- positive PPD (R76.11)
- positive tuberculin skin test without active tuberculosis (R76.11)
- sequelae of tuberculosis (B90.-)
- silicotuberculosis (J65)
A20-A28
- Certain zoonotic bacterial diseases (A20-A28)
A30-A49
- Other bacterial diseases (A30-A49)
A50-A64
- Infections with a predominantly sexual mode of transmission (A50-A64)
- human immunodeficiency virus [HIV] disease (B20)
- nonspecific and nongonococcal urethritis (N34.1)
- Reiter's disease (M02.3-)
A65-A69
- Other spirochetal diseases (A65-A69)
- leptospirosis (A27.-)
- syphilis (A50-A53)
A70-A74
- Other diseases caused by chlamydiae (A70-A74)
- sexually transmitted chlamydial diseases (A55-A56)
A75-A79
A75 A77 A78 A79A80-A89
- Viral and prion infections of the central nervous system (A80-A89)
- postpolio syndrome (G14)
- sequelae of poliomyelitis (B91)
- sequelae of viral encephalitis (B94.1)
A90-A99
- Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)