From parent levels

ChapterICertain infectious and parasitic diseasesOpen

Coding note

Use additional code (U82, U83, U84), if desired, to identify resistance to antimicrobial drugs

Inclusions

  • diseases generally recognized as communicable or transmissible

Exclusions

  • 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 [except obstetrical tetanus] (O98.-)
  • infectious and parasitic diseases specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
BlockA80-A89Viral infections of the central nervous systemOpen

Exclusions

  • sequelae of: poliomyelitis (B91)
  • sequelae of: viral encephalitis (B94.1)
CategoryA84Tick-borne viral encephalitisOpen

Inclusions

  • tick-borne viral meningoencephalitis

A84.9

CategoryResidualBlock A80-A89Chapter I

Tick-borne viral encephalitis, unspecified

Parent: A84 Tick-borne viral encephalitis