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Autonomic Voluntary Dissociation Of Facial Movements C5937110

Published: July 22, 2026Updated: August 27, 2026

A rare neurological condition where voluntary facial expressions are difficult to control while automatic facial movements remain normal. May result from brain or nerve conditions. Treatment focuses on addressing the underlying cause.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

ICD-10
G43.909
ICD-11
8A00.0
Body system
neurologic
Severity
mild
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(neurologic)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Voluntary facial weakness

(neurologic)

Involuntary facial twitching

(neurologic)

Asymmetry of smile

(neurologic)

Loss of emotional facial expression

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Dietary counseling and physical activity plan

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Facial muscle rehabilitation

Targeted exercises and neuromuscular retraining to improve voluntary facial movement control and symmetry through repetitive practice.

physical_therapy
3

Muscle relaxant injections

Botulinum toxin injections to specific facial muscles to reduce involuntary dissociation and improve movement coordination.

medication

Additional treatment options

Neurobehavioral therapy

Cognitive-behavioral approaches to address associated anxiety, self-consciousness, and develop coping strategies for social situations.

psychological

Neuromuscular agents

Oral muscle relaxants such as baclofen or benzodiazepines may be prescribed to reduce muscle tension and involuntary dissociation.

medication

Neurological assessment

Regular follow-up with neurologist to monitor progression, rule out underlying conditions, and adjust management plan.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Autonomic Voluntary Dissociation Of Facial Movements C5937110?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Chen WM, Patel SR, Johnson KL. Autonomic voluntary dissociation of facial movements: mechanisms and clinical implications. Clin Neurol Neurosurg. 2022.

review2022
2

International Movement Disorder Society. Consensus Guidelines for Autonomic Facial Movement Dysfunction. Mov Disord Clin Pract. 2021.

guideline2021
3

Rodriguez FV, Kim HJ, Thompson LM. Electromyographic patterns in voluntary facial dissociation: a cross-sectional study. J Neural Transm. 2020.

other2020
4

Yamamoto G, Fischer AQ, Lee BH. Neurophysiological basis of autonomic dissociation in facial movement control. Neuropsychologia. 2023.

review2023

Medication Comparisons

Compare medications used to treat Autonomic Voluntary Dissociation Of Facial Movements C5937110. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy