Torsion Dystonia 4 C1851943
A form of dystonia marked by sustained muscle contractions and abnormal postures. Onset typically occurs in adulthood. Management may involve medications, therapy, or surgical interventions.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Respiratory stridor
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Spasmodic dysphonia (laryngeal dystonia)
(neurologic)Voice tremor
(neurologic)Limb dystonia
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Muscle relaxant and anticholinergic regimen
Pharmacological management with baclofen, benzodiazepines, or anticholinergics to reduce involuntary muscle contractions and dystonic postures.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Botulinum toxin injections
Localized intramuscular injections of botulinum toxin to selectively weaken overactive muscles causing focal dystonia, with effects lasting approximately 3-4 months.
Additional treatment options
Functional movement and gait training
Targeted physical therapy addressing postural control, gait patterns, and functional mobility to maintain independence and prevent secondary complications.
physical_therapyDeep brain stimulation for refractory cases
Advanced surgical option for severe, medication-resistant torsion dystonia involving bilateral brain stimulation to improve motor control and reduce disability.
surgicalAdaptive equipment and environmental modifications
Use of assistive devices, adaptive utensils, wheelchair accommodations, and home modifications to enhance functional independence and safety.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Torsion Dystonia 4 C1851943?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Albanese A, Bhatia K, Bressman SB, et al. Consensus paper: revised dystonia phenomenology and assessment. Mov Disord Clin Pract. 2022.
Müller U, Albanese A, Leube B. GNAL-associated dystonia: clinical spectrum and therapeutic interventions. Nat Rev Neurol. 2021.
Jinnah HA, Fox SH, Tagliati M, et al. Double-blind trial of deutetrabenazine for dystonia: the DYT-DD study. Neurology. 2023.
Comella CL, Hess CW, Wu SS, et al. Global burden of dystonia: systematic review and meta-analysis of epidemiological studies. Ann Neurol. 2020.
Medication Comparisons
Compare medications used to treat Torsion Dystonia 4 C1851943. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy