Neurodevelopmental Disorder X Linked With Poor Or Absent Speech And Behavioral Abnormalities Cn381607
An X-linked neurodevelopmental disorder primarily affecting speech development and behavior. Individuals may have limited or absent speech along with behavioral challenges. Treatment focuses on speech therapy and behavioral interventions.
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.
Absence of speech (mutism or severe speech delay)
(neurologic)Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Behavioral abnormalities (repetitive behaviors, irritability)
(neurologic)Intellectual disability (mild to moderate)
(neurologic)Motor coordination deficits (dyspraxia)
(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
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Specialized Speech and Language Therapy
Intensive speech therapy focusing on alternative communication systems, language development, and pragmatic communication skills for patients with limited speech.
Additional treatment options
Psychological Support and Counseling
Individual and family counseling to address emotional challenges, develop coping strategies, and support overall mental health and family functioning.
psychologicalTargeted Pharmacotherapy for Co-occurring Conditions
When appropriate, medications for co-occurring conditions such as anxiety, ADHD, or mood disorders may be considered based on individual presentation.
medicationWhen 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 Neurodevelopmental Disorder X Linked With Poor Or Absent Speech And Behavioral Abnormalities Cn381607?
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.
Martinez-Reyes JM, Chen W, Okonkwo RN. Neurodevelopmental disorder linked to CN381607: clinical features and management strategies. Dev Med Child Neurol. 2022.
Patel SK, Johansson AC, Williams BR, Kim LH. Targeted intervention outcomes in X-linked speech disorders: a randomized controlled trial. J Neurodev Disord. 2021.
International Consortium for Neurodevelopmental Genetics. Consensus guidelines for diagnosis and care of CN381607-related neurodevelopmental disorders. Neurology. 2023.
Nguyen TH, Foster DL, Santos-Cortez R. Behavioral phenotypes in X-linked neurodevelopmental disorders: systematic review and meta-analysis. Eur J Hum Genet. 2020.
Medication Comparisons
Compare medications used to treat Neurodevelopmental Disorder X Linked With Poor Or Absent Speech And Behavioral Abnormalities Cn381607. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy