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2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Symptoms, Signs, And Ill-Defined Conditions 780-799 > Symptoms 780-789 > Symptoms Involving Nervous And Musculoskeletal Systems 781.* >

2006 ICD-9-CM Diagnosis 781.0

Abnormal involuntary movements

View the most recent version of ICD-9-CM 781.0

  • Cyclical movement of a body part that can represent either a physiologic process or a manifestation of disease. Intention or action tremor, a common manifestation of CEREBELLAR DISEASES, is aggravated by movement. In contrast, resting tremor is maximal when there is no attempt at voluntary movement, and occurs as a relatively frequent manifestation of PARKINSON DISEASE.
  • Involuntary contraction of the muscle fibers innervated by a motor unit. Fasciculations can often by visualized and take the form of a muscle twitch or dimpling under the skin, but usually do not generate sufficient force to move a limb. They may represent a benign condition or occur as a manifestation of MOTOR NEURON DISEASE or PERIPHERAL NERVOUS SYSTEM DISEASES.
  • An involuntary contraction of a muscle or group of muscles. Spasms may involve skeletal muscle (MUSCLE, SKELETAL) or smooth muscle (MUSCLE, SMOOTH).
  • Tremor is the shaking movement of the whole body or just a certain part of it, often caused by problems of the neurons responsible for muscle action.
  • 781.0 is a specific code that can be used to specify a diagnosis
  • 781.0 contains 34 index entries
  • View the ICD-9-CM Volume 1 781.* hierarchy

Alternate Terminology

  • Abnormal head movements
  • Fasciculation
  • Spasms NOS
  • Tremor NOS

781.0 Excludes


 Index entries containing 781.0:

Abnormal, abnormality, abnormalities - see also Anomaly
  • head movement 781.0
    • involuntary movement 781.0
      • movement 781.0
        • disorder NEC 333.90
        • head 781.0
          • involuntary 781.0
            • specified type NEC 333.99
            Acathisia 781.0Akathisia, acathisia 781.0Athetosis (acquired) 781.0
            • bilateral
              • congenital (bilateral) 333.6
                • double
                  • unilateral 781.0
                    Clonus 781.0
                      Convulsions (idiopathic) 780.39
                      • reflex 781.0
                        Dystonic
                        • movements 781.0
                          Fasciculation 781.0
                            Hemiathetosis 781.0
                              Hemispasm 781.0
                              • facial 781.0
                                Hemitremor 781.0
                                  Involuntary movement, abnormal 781.0
                                    Kathisophobia 781.0
                                      Live flesh 781.0
                                        Movement
                                        • abnormal (dystonic) (involuntary) 781.0
                                          Nodding of head 781.0
                                            Opisthotonos, opisthotonus 781.0
                                              Retraction
                                              • head 781.0
                                                Rolling of head 781.0
                                                  Shaking
                                                  • head (tremor) 781.0
                                                    Spasm, spastic, spasticity (see also condition) 781.0Tic 307.20
                                                    • salaam 781.0
                                                      Tremor 781.0Trismus 781.0Twitch 781.0