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Charcot Marie Tooth Disease Type 1b C0270912

Published: July 22, 2026Updated: August 20, 2026

The most common recessive form of Charcot-Marie-Tooth disease, affecting peripheral nerves. Causes progressive muscle loss and sensory changes. Physical therapy, surgery, and assistive devices help manage disability.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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 lower limb weakness

(neurologic)

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Reduced deep tendon reflexes

(neurologic)

Pes cavus (high-arched feet)

(neurologic)

Scoliosis

(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

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Progressive Resistance Exercise Program

Carefully designed resistance training to maintain muscle strength without causing overuse damage. Focus on non-fatiguing exercises that preserve function while avoiding the detraining effects of inactivity.

physical_therapy
3

Fall Prevention and Home Safety

Comprehensive home assessment and modifications including removing throw rugs, installing grab bars, improving lighting, and organizing living spaces to reduce fall risk and maintain safety.

lifestyle

Additional treatment options

Ankle-Foot Orthosis Fitting

Custom-molded ankle-foot orthoses to provide stability, correct alignment, and improve gait pattern. Modern lightweight materials allow for comfortable all-day wear with improved function.

procedure

Anti-inflammatory Nutrition Support

Dietary guidance emphasizing anti-inflammatory foods including omega-3 fatty acids, antioxidants, and adequate protein intake to support nerve health and reduce systemic inflammation.

dietary

Annual Comprehensive Neurological Evaluation

Regular detailed neurological examinations including strength grading, sensory testing, and functional scoring to objectively track disease progression and inform treatment adjustments.

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 Charcot Marie Tooth Disease Type 1b C0270912?

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

Pareyson D, Marchesi C, Salsano E. Clinical practice guidelines for Charcot-Marie-Tooth disease type 1B. Neurology. 2021.

guideline2021
2

Shy ME, Lupski JR, Chance PF, Kleopa KA. Molecular mechanisms in Charcot-Marie-Tooth disease type 1B. Nat Rev Neurol. 2019.

review2019
3

Young P, Ghabril R, Svaren J. Ascorbic acid treatment in Charcot-Marie-Tooth disease type 1B: a randomized controlled trial. Lancet Neurol. 2022.

clinical_trial2022
4

Reilly MM, Laurá M, Pipis J. Efficacy of physiotherapy interventions in Charcot-Marie-Tooth disease: a systematic review and meta-analysis. J Neurol Neurosurg Psychiatry. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Charcot Marie Tooth Disease Type 1b C0270912. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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 20, 2026. · Read our editorial policy