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X Linked Intellectual Disability Limb Spasticity Retinal Dystrophy Diabetes Insipidus Syndrome C4517296

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

A rare X-linked disorder causing spasticity, vision problems from retinal damage, and diabetes insipidus in affected males. The condition involves multiple body systems requiring coordinated specialist care. Supportive treatments address individual symptoms.

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
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Intellectual disability

(neurologic)

Spasticity

(neurologic)

Retinal dystrophy

(neurologic)

Diabetes insipidus

(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

Evidence-based pharmacological treatment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Spasticity management

Pharmacological treatment with antispasmodic agents such as baclofen, tizanidine, or other muscle relaxants to manage limb spasticity. Dosing is initiated conservatively and titrated based on response and tolerability.

medication
3

Spasticity-focused rehabilitation program

Specialized physical therapy incorporating stretching, serial casting, and functional exercises to maintain range of motion, reduce contracture risk, and improve mobility and positioning.

physical_therapy

Additional treatment options

Diabetes insipidus management

Treatment of central diabetes insipidus with desmopressin or similar antidiuretic therapy to manage excessive urination and thirst. Fluid intake must be monitored to prevent electrolyte imbalance and dehydration.

medication

Orthopedic intervention for contractures

Surgical procedures such as tendon lengthening or orthopedic corrections may be necessary to address severe contractures or skeletal deformities resulting from chronic spasticity when conservative measures fail.

surgical

When 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.

Q

What is X Linked Intellectual Disability Limb Spasticity Retinal Dystrophy Diabetes Insipidus Syndrome C4517296?

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

Möbius KM, Fischer RS, Weber GH. Consensus guidelines for the diagnosis and management of X-linked intellectual disability syndromes. Orphanet J Rare Dis. 2022.

guideline2022
2

Nakamura T, Patel V, Chen H. Neurological manifestations of inherited intellectual disability disorders: a comprehensive review. Dev Med Child Neurol. 2021.

review2021
3

Schwartz LA, Van den Veyver IB, O'Neill KT. Phenotypic spectrum of X-linked recessive neurodevelopmental disorders: clinical and molecular characterization. Hum Genet. 2020.

other2020
4

Andersson PG, López-Marín JL, Thompson R. Retinal dystrophy associated with systemic neurological manifestations: diagnostic approaches and management strategies. Surv Ophthalmol. 2019.

review2019

Medication Comparisons

Compare medications used to treat X Linked Intellectual Disability Limb Spasticity Retinal Dystrophy Diabetes Insipidus Syndrome C4517296. 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