1. I88 Nonspecific lymphadenitis


    • acute lymphadenitis, except mesenteric (L04.-)
    • enlarged lymph nodes NOS (R59.-)
    • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
    1. I88.0 Nonspecific mesenteric lymphadenitis

      Inclusion term(s):

      • Mesenteric lymphadenitis (acute)(chronic)
    2. I88.1 Chronic lymphadenitis, except mesenteric

      Inclusion term(s):

      • Adenitis
      • Lymphadenitis
    3. I88.8 Other nonspecific lymphadenitis

    4. I88.9 Nonspecific lymphadenitis, unspecified

      Inclusion term(s):

      • Lymphadenitis 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.