1. B01 Varicella [chickenpox]

    1. B01.0 Varicella meningitis

    2. B01.1 Varicella encephalitis, myelitis and encephalomyelitis

      Inclusion term(s):

      • Postchickenpox encephalitis, myelitis and encephalomyelitis
      1. B01.11 Varicella encephalitis and encephalomyelitis

        Inclusion term(s):

        • Postchickenpox encephalitis and encephalomyelitis
      2. B01.12 Varicella myelitis

        Inclusion term(s):

        • Postchickenpox myelitis
    3. B01.2 Varicella pneumonia

    4. B01.8 Varicella with other complications

      1. B01.81 Varicella keratitis

      2. B01.89 Other varicella complications

    5. B01.9 Varicella without complication

      Inclusion term(s):

      • Varicella NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.