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Abnormal Nonverbal Communicative Behavior C4021798

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

This refers to atypical nonverbal communication patterns such as eye contact, facial expressions, or body language. It is commonly associated with neurodevelopmental conditions but can have various causes. Intervention typically involves behavioral therapies and communication support.

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

Key facts at a glance

ICD-10
F99
ICD-11
6A00.0
Body system
psychiatric
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Mood changes or anxiety

(psychiatric)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Lack of eye contact

(psychiatric)

Unusual facial expressions

(psychiatric)

Inconsistent gestures

(psychiatric)

Absence of body language

(psychiatric)

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

Speech and Language Therapy

Individualized therapy sessions focusing on nonverbal communication skills, including gesture training, facial expression recognition, and body language interpretation exercises.

psychological
3

Social Skills Training

Group-based intervention teaching appropriate nonverbal cues, eye contact maintenance, and spatial awareness in social interactions through role-playing scenarios.

psychological

Additional treatment options

Structured Social Practice

Regular participation in supervised social activities with feedback on nonverbal communication patterns to improve awareness and modification of inappropriate behaviors.

lifestyle

Sensory Integration Therapy

Therapeutic activities designed to improve processing of sensory information that may contribute to abnormal nonverbal behaviors, particularly for individuals with sensory processing difficulties.

complementary

Regular Behavioral Assessments

Scheduled evaluations to monitor progress, identify persistent challenges, and adjust intervention strategies based on observed improvements in nonverbal communication patterns.

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 Abnormal Nonverbal Communicative Behavior C4021798?

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

American Speech-Language-Hearing Association. Guidelines for assessment and intervention of nonverbal communication disorders. J Speech Lang Hear Assoc. 2022.

guideline2022
2

Tager-Flusberg H, Kasari C, Lord C. Nonverbal communication in autism spectrum disorder: A comprehensive review. Autism Res. 2021.

review2021
3

Schlosser RW, Sigafoos J, Koul R. Efficacy of augmentative communication interventions for nonverbal individuals: A randomized controlled trial. J Dev Phys Disabil. 2019.

clinical_trial2019
4

Pfitzner C, Poch N, Diallo T. Treatment outcomes for abnormal nonverbal behavior in neurodevelopmental disorders: Meta-analytic review. Dev Neurorehabil. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Abnormal Nonverbal Communicative Behavior C4021798. 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