1. A39 Meningococcal infection

    1. A39.0 Meningococcal meningitis

    2. A39.1 Waterhouse-Friderichsen syndrome

      Inclusion term(s):

      • Meningococcal hemorrhagic adrenalitis
      • Meningococcic adrenal syndrome
    3. A39.2 Acute meningococcemia

    4. A39.3 Chronic meningococcemia

    5. A39.4 Meningococcemia, unspecified

    6. A39.5 Meningococcal heart disease

      1. A39.50 Meningococcal carditis, unspecified

      2. A39.51 Meningococcal endocarditis

      3. A39.52 Meningococcal myocarditis

      4. A39.53 Meningococcal pericarditis

    7. A39.8 Other meningococcal infections

      1. A39.81 Meningococcal encephalitis

      2. A39.82 Meningococcal retrobulbar neuritis

      3. A39.83 Meningococcal arthritis

      4. A39.84 Postmeningococcal arthritis

      5. A39.89 Other meningococcal infections

        Inclusion term(s):

        • Meningococcal conjunctivitis
    8. A39.9 Meningococcal infection, unspecified

      Inclusion term(s):

      • Meningococcal disease 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.