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Certain infectious and parasitic diseases (A00-B99)

ICD 10 CM Chapter A00-B99 includes Certain Infectious and Parasitic Diseases like Human Immunodeficiency Virus (HIV) Infections. Certain infections are classified in chapters other than Chapter 1 and no organism is identified as part of the infection code. In these instances, it is necessary to use an additional code from Chapter 1 to identify the organism.

  • Exclude 1:
    • certain localized infections - see body system-related chapters
  • Exclude 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,)
    • in

  • Includes:
    • diseases generally recognized as communicable or transmissible

  • User Additional Code:
    • code to identify resistance to antimicrobial drugs (Z16.-,)

  • A00-A09 Intestinal infectious diseases (A00-A09)
  • A15-A19 Tuberculosis (A15-A19)
  • 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)
  • A65-A69 Other spirochetal diseases (A65-A69)
  • A70-A74 Other diseases caused by chlamydiae (A70-A74)
  • A75-A79 Rickettsioses (A75-A79)
  • A80-A89 Viral and prion infections of the central nervous system (A80-A89)
  • A90-A99 Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
  • B00-B09 Viral infections characterized by skin and mucous membrane lesions (B00-B09)
  • B10 Other human herpesviruses (B10)
  • B15-B19 Viral hepatitis (B15-B19)
  • B20 Human immunodeficiency virus [HIV] disease (B20)
  • B25-B34 Other viral diseases (B25-B34)
  • B35-B49 Mycoses (B35-B49)
  • B50-B64 Protozoal diseases (B50-B64)
  • B65-B83 Helminthiases (B65-B83)
  • B85-B89 Pediculosis, acariasis and other infestations (B85-B89)
  • B90-B94 Sequelae of infectious and parasitic diseases (B90-B94)
  • B95-B97 Bacterial and viral infectious agents (B95-B97)
  • B99 Other infectious diseases (B99)

Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.Parasites range in size ...

Cryptosporidiosis (crypto) is an illness caused by a parasite. The parasite lives in soil, food, and water. It may also be on surfaces that have been contaminated with feces (poop). You can become infected by swallowing the parasite, if it is in your food, drinking water, or water that you ...

Giardiasis is an illness caused by a parasite called Giardia intestinalis. It lives in soil, food, and water. It may also be on surfaces that have been contaminated with waste. You can become infected if you swallow the parasite. You can also get it if you're exposed to human feces (...

Animal diseases that people can catch are called zoonoses. Many diseases affecting humans can be traced to animals or animal products. You can get a disease directly from an animal, or indirectly, through the environment.Farm animals can carry diseases. If you touch them or things they have touched, like ...

Chagas disease is caused by a parasite. It is common in Latin America but not in the United States. Infected blood-sucking bugs, sometimes called kissing bugs, spread it. When the bug bites you, usually on your face, it leaves behind infected waste. You can get the infection if you rub ...

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