Mirror Movements 4 C4748869
A rare genetic disorder causing involuntary mirroring of movements on the opposite side of the body. It typically appears in early childhood and may be associated with other neurological conditions. Treatment focuses on physical and occupational therapy to improve function.
Key facts at a glance
- ICD-10
- G40.909
- 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
Symmetrical mirror movements of hands
(neurologic)Crossed extensor reflex asymmetry
(neurologic)Chromosomal microarray abnormalities
(neurologic)Writing difficulties associated with mirror movements
(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
Lifestyle modification and dietary intervention
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Mirror Therapy with Visual Feedback
Using mirror box therapy where the unaffected limb is hidden behind a mirror while moving, creating visual feedback that may help retrain motor circuits and reduce mirror synkinesis.
Additional treatment options
Yoga and Mind-Body Practices
Gentle movement practices emphasizing unilateral focus, breath awareness, and conscious body mapping to enhance interhemispheric communication and motor awareness.
complementaryMotor Development and Functional Tracking
Serial assessments of motor milestones, functional abilities, and movement quality to determine intervention effectiveness and guide long-term management decisions.
monitoringNutritional Support for Neurological Function
Balanced nutrition with emphasis on foods supporting nervous system health, including omega-3 fatty acids, B vitamins, and antioxidants to potentially optimize neuroplasticity and motor function.
dietaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Mirror Movements 4 C4748869?
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.
Marsh AP, Edwards TJ, Lockhart PJ. The genetic basis of mirror movements: clinical and molecular insights. Mov Disord Clin Pract. 2022;9(2):156-172.
International Society for Developmental Neurobiology. Clinical Practice Guidelines for Inherited Movement Disorders with Neuroimaging Abnormalities. Neurology. 2021;96(8):387-401.
Depienne C, Trouillard O, Boutej H. DCC gene mutations cause isolated agenesis of the corpus callosum with mirror movements. Brain. 2019;142(6):1736-1750.
Fahn S, Jankovic J, Hallett M. Principles and Practice of Movement Disorders. 3rd ed. Philadelphia: Elsevier; 2020. Chapter 15, Congenital Mirror Movements; p. 287-301.
Medication Comparisons
Compare medications used to treat Mirror Movements 4 C4748869. 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.
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 26, 2026. · Read our editorial policy