Excludes2

  • disorders of kidney and ureter with urolithiasis (N20-N23)
  1. N27 Small kidney of unknown cause

    Includes:

    • oligonephronia
    1. N27.0 Small kidney, unilateral

    2. N27.1 Small kidney, bilateral

    3. N27.9 Small kidney, unspecified

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.