All ICD10 Codes
Chapter 1

A00–B99: Certain Infectious and Parasitic Diseases

Certain Infectious and Parasitic Diseases diagnostic classification updated for 2026.

Chapter Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • 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)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)
All CodesBillable Only
Internal Codes
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  • B05.8—

    Measles with other complications

  • B05.81—

    Measles keratitis and keratoconjunctivitis

  • B05.89—

    Other measles complications

  • B05.9—

    Measles without complication

  • B06—

    Rubella [German measles]

  • B06.0—

    Rubella with neurological complications

  • B06.00—

    Rubella with neurological complication, unspecified

  • B06.01—

    Rubella encephalitis

  • B06.02—

    Rubella meningitis

  • B06.09—

    Other neurological complications of rubella

  • B06.8—

    Rubella with other complications

  • B06.81—

    Rubella pneumonia

  • B06.82—

    Rubella arthritis

  • B06.89—

    Other rubella complications

  • B06.9—

    Rubella without complication

  • B07—

    Viral warts

  • B07.0—

    Plantar wart

  • B07.8—

    Other viral warts

  • B07.9—

    Viral wart, unspecified

  • B08—

    Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified

  • B08.0—

    Other orthopoxvirus infections

  • B08.01—

    Cowpox and vaccinia not from vaccine

  • B08.010—

    Cowpox

  • B08.011—

    Vaccinia not from vaccine

  • B08.02—

    Orf virus disease

  • B08.03—

    Pseudocowpox [milker's node]

  • B08.04—

    Paravaccinia, unspecified

  • B08.09—

    Other orthopoxvirus infections

  • B08.1—

    Molluscum contagiosum

  • B08.2—

    Exanthema subitum [sixth disease]

  • B08.20—

    Exanthema subitum [sixth disease], unspecified

  • B08.21—

    Exanthema subitum [sixth disease] due to human herpesvirus 6

  • B08.22—

    Exanthema subitum [sixth disease] due to human herpesvirus 7

  • B08.3—

    Erythema infectiosum [fifth disease]

  • B08.4—

    Enteroviral vesicular stomatitis with exanthem

  • B08.5—

    Enteroviral vesicular pharyngitis

  • B08.6—

    Parapoxvirus infections

  • B08.60—

    Parapoxvirus infection, unspecified

  • B08.61—

    Bovine stomatitis

  • B08.62—

    Sealpox

  • B08.69—

    Other parapoxvirus infections

  • B08.7—

    Yatapoxvirus infections

  • B08.70—

    Yatapoxvirus infection, unspecified

  • B08.71—

    Tanapox virus disease

  • B08.72—

    Yaba pox virus disease

  • B08.79—

    Other yatapoxvirus infections

  • B08.8—

    Other specified viral infections characterized by skin and mucous membrane lesions

  • B09—

    Unspecified viral infection characterized by skin and mucous membrane lesions

  • B10—

    Other human herpesviruses

  • B10.0—

    Other human herpesvirus encephalitis

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