Autism spectrum disorder
Definition
Autism spectrum disorder is characterised by persistent deficits in the ability to initiate and to sustain reciprocal social interaction and social communication, and by a range of restricted, repetitive, and inflexible patterns of behaviour, interests or activities that are clearly atypical or excessive for the individual’s age and sociocultural context. The onset of the disorder occurs during the developmental period, typically in early childhood, but symptoms may not become fully manifest until later, when social demands exceed limited capacities. Deficits are sufficiently severe to cause impairment in personal, family, social, educational, occupational or other important areas of functioning and are usually a pervasive feature of the individual’s functioning observable in all settings, although they may vary according to social, educational, or other context. Individuals along the spectrum exhibit a full range of intellectual functioning and language abilities.
Inclusions
- Autistic disorder
Exclusions
- Rett syndrome
(LD90.4)
7 subordinate codes
6A02.0Autism spectrum disorder without disorder of intellectual development and with mild or no impairment of functional language6A02.1Autism spectrum disorder with disorder of intellectual development and with mild or no impairment of functional language6A02.2Autism spectrum disorder without disorder of intellectual development and with impaired functional language6A02.3Autism spectrum disorder with disorder of intellectual development and with impaired functional language6A02.5Autism spectrum disorder with disorder of intellectual development and with absence of functional language4B4YOther specified diseases of the immune system4B4ZDiseases of the immune system, unspecified
Nearby in Neurodevelopmental disorders
6A00Disorders of intellectual development6A01Developmental speech or language disorders6A03Developmental learning disorder6A04Developmental motor coordination disorder6A05Attention deficit hyperactivity disorder6A06Stereotyped movement disorder4B4YOther specified diseases of the immune system4B4ZDiseases of the immune system, unspecified