A00–B99: Certain Infectious and Parasitic Diseases
Chapter 1 of ICD-10-CM 2027, 1,309 codes in 22 blocks.
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Chapter instructions
Includes: conditions that are coded here
- diseases generally recognized as communicable or transmissible
Excludes2: not included here, code separately if applicable
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- 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)
Use additional code: add a second code for this, listed after this one
- code to identify resistance to antimicrobial drugs (Z16.-)
Blocks
- 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 and unspecified infectious diseases
Codes in this chapter
All codesBillable only1,068 results
- A00.0Cholera due to Vibrio cholerae 01, biovar cholerae
- A00.1Cholera due to Vibrio cholerae 01, biovar eltor
- A00.9Cholera, unspecified
- A01.00Typhoid fever, unspecified
- A01.01Typhoid meningitis
- A01.02Typhoid fever with heart involvement
- A01.03Typhoid pneumonia
- A01.04Typhoid arthritis
- A01.05Typhoid osteomyelitis
- A01.09Typhoid fever with other complications
- A01.1Paratyphoid fever A
- A01.2Paratyphoid fever B
- A01.3Paratyphoid fever C
- A01.4Paratyphoid fever, unspecified
- A02.0Salmonella enteritis
- A02.1Salmonella sepsis
- A02.20Localized salmonella infection, unspecified
- A02.21Salmonella meningitis
- A02.22Salmonella pneumonia
- A02.23Salmonella arthritis
- A02.24Salmonella osteomyelitis
- A02.25Salmonella pyelonephritis
- A02.29Salmonella with other localized infection
- A02.8Other specified salmonella infections
- A02.9Salmonella infection, unspecified
- A03.0Shigellosis due to Shigella dysenteriae
- A03.1Shigellosis due to Shigella flexneri
- A03.2Shigellosis due to Shigella boydii
- A03.3Shigellosis due to Shigella sonnei
- A03.8Other shigellosis
- A03.9Shigellosis, unspecified
- A04.0Enteropathogenic Escherichia coli infection
- A04.1Enterotoxigenic Escherichia coli infection
- A04.2Enteroinvasive Escherichia coli infection
- A04.3Enterohemorrhagic Escherichia coli infection
- A04.4Other intestinal Escherichia coli infections
- A04.5Campylobacter enteritis
- A04.6Enteritis due to Yersinia enterocolitica
- A04.71Enterocolitis due to Clostridium difficile, recurrent
- A04.72Enterocolitis due to Clostridium difficile, not specified as recurrent
- A04.8Other specified bacterial intestinal infections
- A04.9Bacterial intestinal infection, unspecified
- A05.0Foodborne staphylococcal intoxication
- A05.1Botulism food poisoning
- A05.2Foodborne Clostridium perfringens [Clostridium welchii] intoxication
- A05.3Foodborne Vibrio parahaemolyticus intoxication
- A05.4Foodborne Bacillus cereus intoxication
- A05.5Foodborne Vibrio vulnificus intoxication
- A05.8Other specified bacterial foodborne intoxications
- A05.9Bacterial foodborne intoxication, unspecified
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