Chapter 1
Certain infectious and parasitic diseases
A00-B99
This chapter groups diseases generally recognized as communicable or transmissible, from common bacterial and viral infections to HIV disease and sepsis. Codes here are frequently combination codes that identify both the causative organism and the affected site in a single entry, which is worth checking before adding a separate organism code.
Sections
- A00-A09Intestinal infectious diseases
- A15-A19Tuberculosis
- A20-A28Certain zoonotic bacterial diseases
- A30-A49Other bacterial diseases
- A50-A64Infections with a predominantly sexual mode of transmission
- A65-A69Other spirochetal diseases
- A70-A74Other diseases caused by chlamydiae
- A75-A79Rickettsioses
- A80-A89Viral and prion infections of the central nervous system
- A90-A99Arthropod-borne viral fevers and viral hemorrhagic fevers
- B00-B09Viral infections characterized by skin and mucous membrane lesions
- B10Other human herpesviruses
- B15-B19Viral hepatitis
- B20Human immunodeficiency virus [HIV] disease
- B25-B34Other viral diseases
- B35-B49Mycoses
- B50-B64Protozoal diseases
- B65-B83Helminthiases
- B85-B89Pediculosis, acariasis and other infestations
- B90-B94Sequelae of infectious and parasitic diseases
- B95-B97Bacterial and viral infectious agents
- B99Other infectious diseases