1. G20 Parkinson's disease

    1. G20.A Parkinson's disease without dyskinesia

      1. G20.A1 Parkinson's disease without dyskinesia, without mention of fluctuations

        Inclusion term(s):

        • Parkinson's disease NOS
        • Parkinson's disease without dyskinesia, without mention of OFF episodes
      2. G20.A2 Parkinson's disease without dyskinesia, with fluctuations

        Inclusion term(s):

        • Parkinson's disease without dyskinesia, with OFF episodes
    2. G20.B Parkinson's disease with dyskinesia

      1. G20.B1 Parkinson's disease with dyskinesia, without mention of fluctuations

        Inclusion term(s):

        • Parkinson's disease with dyskinesia, without mention of OFF episodes
      2. G20.B2 Parkinson's disease with dyskinesia, with fluctuations

        Inclusion term(s):

        • Parkinson's disease with dyskinesia, with OFF episodes
    3. G20.C Parkinsonism, unspecified

      Inclusion term(s):

      • Parkinsonism, 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.