Intellectual Developmental Disorder (Intellectual Disability)

A disorder characterized by deficits in intellectual functioning and adaptive behavior that begin during the developmental period and significantly limit everyday functioning.

Global Developmental Delay

A diagnosis for children under age 5 with significant delays in multiple developmental domains when standardized testing cannot yet reliably assess intellectual functioning.

Unspecified Intellectual Developmental Disorder

Used when there is clear evidence of intellectual disability but the severity cannot be reliably determined with the available information.

Language Disorder

A persistent difficulty in acquiring and using spoken, written, or signed language due to problems with vocabulary, grammar, or discourse that interfere with communication.

Speech Sound Disorder

A persistent difficulty producing speech sounds that impairs speech intelligibility and interferes with communication.

Childhood-Onset Fluency Disorder (Stuttering)

A disturbance in the normal fluency and time patterning of speech, such as sound repetitions and blocking, beginning in childhood and causing distress or impairment.

Social (Pragmatic) Communication Disorder

A persistent difficulty using verbal and nonverbal communication in social contexts, such as following conversational rules or understanding implied meanings, without restricted behaviors of autism.

Unspecified Communication Disorder

Clinically significant communication symptoms that do not meet criteria for a specific communication disorder and where insufficient information is available for a more precise diagnosis.

Autism Spectrum Disorder

A neurodevelopmental condition characterized by persistent deficits in social communication and interaction along with restricted, repetitive patterns of behavior, interests, or activities beginning in early development.

Attention-Deficit/Hyperactivity Disorder, Combined Presentation

ADHD in which both inattention and hyperactivity-impulsivity symptoms have been persistently present and cause impairment.

Attention-Deficit/Hyperactivity Disorder, Predominantly Inattentive Presentation

ADHD in which inattention symptoms are prominent and impairing while hyperactivity-impulsivity symptoms are not significantly expressed.

Attention-Deficit/Hyperactivity Disorder, Predominantly Hyperactive/Impulsive Presentation

ADHD in which hyperactivity and impulsivity symptoms are prominent and impairing while inattention symptoms are not significantly expressed.

Other Specified Attention-Deficit/Hyperactivity Disorder

ADHD-like symptoms that cause clinically significant impairment but do not fully meet criteria for any specific ADHD presentation, with the clinician specifying the reason.

Unspecified Attention-Deficit/Hyperactivity Disorder

ADHD-like symptoms with clear impairment where information is insufficient to specify a particular ADHD presentation.

Specific Learning Disorder with Impairment in Reading

A learning disorder where the primary difficulty involves accurate or fluent word reading, decoding, and/or reading comprehension that is substantially below expectations.

Specific Learning Disorder with Impairment in Written Expression

A learning disorder where the main difficulties involve spelling, grammar and punctuation accuracy, and organizing written text.

Specific Learning Disorder with Impairment in Mathematics

A learning disorder where the primary difficulties involve understanding numbers, memorizing arithmetic facts, performing calculations, and/or mathematical reasoning.

Developmental Coordination Disorder

A motor skills disorder involving clumsiness and slow or inaccurate performance of motor tasks that significantly interferes with daily activities and academic or vocational performance.

Stereotypic Movement Disorder

A disorder characterized by repetitive, seemingly purposeless motor behavior that interferes with functioning or may result in self-injury.

Tourette’s Disorder

A tic disorder involving multiple motor tics and at least one vocal tic that have been present for more than a year with onset before age 18.

Persistent (Chronic) Motor or Vocal Tic Disorder

A tic disorder with either motor or vocal tics (but not both) that have persisted for more than a year with onset before age 18.

Provisional Tic Disorder

A tic disorder in which motor and/or vocal tics have been present for less than a year with onset before age 18.

Other Specified Tic Disorder

Clinically significant tic symptoms that do not meet full criteria for a specific tic disorder, with the clinician specifying the reason.

Unspecified Tic Disorder

Tic symptoms with significant impairment where the information is insufficient to make a more specific tic diagnosis.

Other Specified Neurodevelopmental Disorder

Neurodevelopmental symptoms causing significant impairment that do not meet criteria for a specific disorder, with the clinician explaining the particular reason.

Unspecified Neurodevelopmental Disorder

Neurodevelopmental symptoms with clear impairment where there is insufficient information to specify a more precise diagnosis.