1. R25 Abnormal involuntary movements


    • specific movement disorders (G20-G26)
    • stereotyped movement disorders (F98.4)
    • tic disorders (F95.-)
    1. R25.0 Abnormal head movements

    2. R25.1 Tremor, unspecified

    3. R25.2 Cramp and spasm

    4. R25.3 Fasciculation

      Inclusion term(s):

      • Twitching NOS
    5. R25.8 Other abnormal involuntary movements

    6. R25.9 Unspecified abnormal involuntary movements

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.