Certain infectious and parasitic diseases - A00-B99
Certain Infectious and Parasitic Diseases - This chapter covers various infectious diseases caused by bacteria, viruses, parasites, and fungi. It includes conditions like tuberculosis, HIV/AIDS, and malaria.
Includes: This note specifies that certain conditions, symptoms, or elements should be included when a particular code is used.
Chapter Includes:
- diseases generally recognized as communicable or transmissible
Use Additional Code: This note indicates that an additional code should be used in conjunction with the primary code "A" to provide a complete picture of the patient's condition or to capture associated factors.
Use Additional:
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes1: It indicates that the conditions described by two codes cannot occur together in the same patient. These codes are mutually exclusive.
Type 1 Excludes:
- certain localized infections - see body system-related chapters
Excludes2: This note means that the conditions described by two codes are not usually associated with each other but can sometimes occur together.
Type 2 Excludes:
- 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)
These ranges represents sections of Certain infectious and parasitic diseases. The "A" signifies that these are the diseases within this broad chapter.
Codes:
- A00-A09 - Intestinal infectious diseases
- A15-A19 - Tuberculosis
- A20-A28 - Certain zoonotic bacterial diseases
- A30-A49 - Other bacterial diseases
- A50-A64 - Infections with a predominantly sexual mode of transmission
- A65-A69 - Other spirochetal diseases
- A70-A74 - Other diseases caused by chlamydiae
- A75-A79 - Rickettsioses
- A80-A89 - Viral and prion infections of the central nervous system
- A90-A99 - Arthropod-borne viral fevers and viral hemorrhagic fevers
- B00-B09 - Viral infections characterized by skin and mucous membrane lesions
- B10 - Other human herpesviruses
- B15-B19 - Viral hepatitis
- B20 - Human immunodeficiency virus [HIV] disease
- B25-B34 - Other viral diseases
- B35-B49 - Mycoses
- B50-B64 - Protozoal diseases
- B65-B83 - Helminthiases
- B85-B89 - Pediculosis, acariasis and other infestations
- B90-B94 - Sequelae of infectious and parasitic diseases
- B95-B97 - Bacterial and viral infectious agents
- B99 - Other infectious diseases