Neuronopathy Distal Hereditary Motor Type 7a C1834703
A hereditary motor neuron disease that may cause voice cord paralysis and progressive limb weakness. It can affect both males and females and varies by family. Supportive care and respiratory monitoring are important components of management.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Distal limb weakness
(neurologic)Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Facial weakness
(neurologic)Reduced deep tendon reflexes
(neurologic)Vocal cord paralysis
(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
Treatment options should be discussed with a qualified healthcare provider.
Motor Rehabilitation Program
Comprehensive rehabilitation program emphasizing gentle strengthening exercises, range of motion activities, and gait training to preserve functional abilities.
Respiratory Function Surveillance
Regular monitoring of respiratory muscle strength and pulmonary function, particularly important as distal hereditary motor neuronopathies may affect respiratory muscles over time.
Additional treatment options
Energy Conservation Techniques
Training in pacing strategies, activity modification, and environmental adaptations to optimize energy use and reduce fatigue during daily activities.
lifestyleNutritional Assessment and Support
Evaluation of nutritional status and dietary optimization to maintain healthy weight and support muscle function, with attention to swallowing function if affected.
dietaryAcupuncture and Complementary Therapies
Adjunctive therapies such as acupuncture or massage may provide symptomatic relief for muscle discomfort and improve overall well-being.
complementaryWhen 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 Neuronopathy Distal Hereditary Motor Type 7a C1834703?
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.
Pareyson D, Saveri P, Sagnelli A, Pisciotta C. Clinical practice guidelines for Charcot-Marie-Tooth disease and hereditary motor neuropathies. Neurology. 2022.
Rossor AM, Polke JM, Houlden H, Reilly MM. Clinical implications of genetic advances in Charcot-Marie-Tooth disease. Nat Rev Neurol. 2021.
Bansagi B, Griffin H, Whittaker RG, et al. Genetic heterogeneity of distal hereditary motor neuropathy: a multicentre cohort study. Brain. 2020.
Harding AE, Thomas PK. Distal hereditary motor neuropathy: analysis of clinical and genetic features. J Neurol Neurosurg Psychiatry. 2019.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy