A00-A09 Intestinal Infectious Diseases

A15-A19 Tuberculosis

A20-A28 Zoonotic Bacterial Diseases

A30-A49 Other Bacterial Diseases

A50-A64 Infections Transmitted Sexually

A65-A69 Other Spirochetal Diseases

A70-A74 Diseases Caused by Chlamydiae

A75-A79 Rickettsioses

A80-A89 Viral & Prion Infections of CNS

A90-A99 Arthropod Viral & Hemorrhagic Fevers

B00-B09 Viral Infections with Skin and Mucous Membrane Lesions

B10-B10 Other Human Herpesviruses

B15-B19 Viral Hepatitis

B20-B20

HIV Disease

B25-B34 Other Viral Diseases

B35-B49

Mycoses

B50-B64

Protozoal Diseases

B65-B83

Helminthiases

B85-B89 Pediculosis, Acariasis & Other Infestations

B90-B94 Sequelae of Infectious & Parasitic Diseases

B95-B97 Bacterial & Viral Infectious Agents