ICD-10-CM Code G24.9

Dystonia, unspecified

Version 2021 Billable Code

Valid for Submission

G24.9 is a billable code used to specify a medical diagnosis of dystonia, unspecified. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code G24.9 might also be used to specify conditions or terms like adiadochokinesia, adult-onset dystonia parkinsonism, developmental malformation, deafness, dystonia syndrome, disorder of manganese metabolism, dissociative neurological symptom disorder co-occurrent with dystonia, dopamine transporter deficiency syndrome, etc

Short Description:Dystonia, unspecified
Long Description:Dystonia, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G24.9:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Dyskinesia NOS

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G24.9 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Adiadochokinesia
  • Adult-onset dystonia parkinsonism
  • Developmental malformation, deafness, dystonia syndrome
  • Disorder of manganese metabolism
  • Dissociative neurological symptom disorder co-occurrent with dystonia
  • Dopamine transporter deficiency syndrome
  • Dyskinesia
  • Dystonia
  • Dystonia of left hand
  • Dystonia of right hand
  • Functional dystonia
  • Generalized dystonia
  • Generalized epilepsy and paroxysmal dyskinesia syndrome
  • Hypermanganesemia with dystonia
  • Hypermanganesemia with dystonia 2
  • Leukoencephalopathy, dystonia, motor neuropathy syndrome
  • Neonatal dyskinesia
  • Progressive myoclonic epilepsy with dystonia
  • Rapid onset dystonia parkinsonism
  • Sensory hearing loss
  • Severe motor and intellectual disabilities, sensorineural deafness, dystonia syndrome

Clinical Information

  • TARDIVE DYSKINESIA-. drug related movement disorder characterized by uncontrollable movements in certain muscles. it is associated with a long term exposure to certain neuroleptic medications e.g. metoclopramide.
  • DYSTONIA-. an attitude or posture due to the co contraction of agonists and antagonist muscles in one region of the body. it most often affects the large axial muscles of the trunk and limb girdles. conditions which feature persistent or recurrent episodes of dystonia as a primary manifestation of disease are referred to as dystonic disorders. adams et al. principles of neurology 6th ed p77
  • DYSTONIA MUSCULORUM DEFORMANS-. a condition characterized by focal dystonia that progresses to involuntary spasmodic contractions of the muscles of the legs trunk arms and face. the hands are often spared however sustained axial and limb contractions may lead to a state where the body is grossly contorted. onset is usually in the first or second decade. familial patterns of inheritance primarily autosomal dominant with incomplete penetrance have been identified. adams et al. principles of neurology 6th ed p1078
  • MEIGE SYNDROME-. a syndrome characterized by orofacial dystonia; including blepharospasm; forceful jaw opening; lip retraction; platysma muscle spasm; and tongue protrusion. it primarily affects older adults with an incidence peak in the seventh decade of life. from adams et al. principles of neurology 6th ed p108
  • NOCTURNAL PAROXYSMAL DYSTONIA-. a parasomnia characterized by paroxysmal episodes of choreoathetotic ballistic dystonic movements and semipurposeful activity. the episodes occur during non rapid eye movement sleep and typically recur several times per night. neurology 1992 jul;427 suppl 6:61 67; adams et al. principles of neurology 6th ed p391
  • DYSTONIC DISORDERS-. acquired and inherited conditions that feature dystonia as a primary manifestation of disease. these disorders are generally divided into generalized dystonias e.g. dystonia musculorum deformans and focal dystonias e.g. writer's cramp. they are also classified by patterns of inheritance and by age of onset.

Convert G24.9 to ICD-9

  • 333.89 - Fragm torsion dyston NEC (Approximate Flag)

Code Classification

  • Diseases of the nervous system (G00–G99)
    • Extrapyramidal and movement disorders (G20-G26)
      • Dystonia (G24)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Dystonia is a movement disorder that causes involuntary contractions of your muscles. These contractions result in twisting and repetitive movements. Sometimes they are painful.

Dystonia can affect just one muscle, a group of muscles or all of your muscles. Symptoms can include tremors, voice problems or a dragging foot. Symptoms often start in childhood. They can also start in the late teens or early adulthood. Some cases worsen over time. Others are mild.

Some people inherit dystonia. Others have it because of another disease. Researchers think that dystonia may be due to a problem in the part of the brain that handles messages about muscle contractions. There is no cure. Doctors use medicines, Botox injections, surgery, physical therapy, and other treatments to reduce or eliminate muscle spasms and pain.

NIH: National Institute of Neurological Disorders and Stroke

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