Includes:

  • nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]
  • nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]
  • nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]
  • nonspecific abnormal findings on diagnostic imaging by thermography
  • nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]
  • nonspecific abnormal findings on diagnostic imaging by X-ray examination

Excludes1

  • abnormal findings on antenatal screening of mother (O28.-)
  • diagnostic abnormal findings classified elsewhere - see Alphabetical Index
  1. R90 Abnormal findings on diagnostic imaging of central nervous system

    1. R90.0 Intracranial space-occupying lesion found on diagnostic imaging of central nervous system

    2. R90.8 Other abnormal findings on diagnostic imaging of central nervous system

      1. R90.81 Abnormal echoencephalogram

      2. R90.82 White matter disease, unspecified

      3. R90.89 Other abnormal findings on diagnostic imaging of central nervous system

        Inclusion term(s):

        • Other cerebrovascular abnormality found on diagnostic imaging of central nervous system
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.