Certain infectious and parasitic diseases (A00-B99)

Includes:

diseases generally recognized as communicable or transmissible

Use additional

code to identify resistance to antimicrobial drugs (Z16.-)

Excludes 1:

certain localized infections - see body system-related chapters

Excludes 2:

carrier or suspected carrier of infectious disease (Z22.-)
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
infectious and parasitic diseases specific to the perinatal period (P35-P39)
influenza and other acute respiratory infections (J00-J22)

Other diseases caused by chlamydiae (A70-A74)

Excludes 1:

sexually transmitted chlamydial diseases (A55-A56)