1. K68 Disorders of retroperitoneum

    1. K68.1 Retroperitoneal abscess

      1. K68.11 Postprocedural retroperitoneal abscess

      2. K68.12 Psoas muscle abscess

      3. K68.19 Other retroperitoneal abscess

    2. K68.2 Retroperitoneal fibrosis

    3. K68.3 Retroperitoneal hematoma

      Inclusion term(s):

      • Retroperitoneal hemorrhage
    4. K68.9 Other disorders of retroperitoneum

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.