AA. Deficits in intellectual functions (reasoning, problem-solving, planning, abstract thinking, judgement, academic learning, experiential learning) confirmed by clinical assessment and standardised testing B. Deficits in adaptive functioning in ≥1 of: conceptual, social, or practical domains — resulting in failure to meet developmental/sociocultural standards for personal independence/social responsibility C. Onset of intellectual and adaptive deficits during the developmental period
BA. Persistent deficits in social communication/interaction across multiple contexts (≥3 components: social-emotional reciprocity; nonverbal communicative behaviours; developing/maintaining relationships) B. Restricted, repetitive patterns of behaviour/interests/activities (≥2 of: stereotyped/repetitive motor movements; insistence on sameness/inflexible routines; highly restricted interests; hyper/hyporeactivity to sensory input) C. Symptoms present in early developmental period (may not fully manifest until social demands exceed capacity)
Common specifiers
AMild; Moderate; Severe; Profound
BWith/without accompanying intellectual impairment; With/without accompanying language impairment; Associated with a known medical or genetic condition; Associated with another neurodevelopmental, mental, or behavioural disorder
Differential flags
AASD (social deficits; RRBs; may coexist - code both when criteria independently met); Specific learning disorder (domain-specific; overall intellectual function preserved); Communication disorder (language-specific; not global intellectual impairment)
BADHD (comorbid in ~50%; social deficits not as pervasive; no RRBs - code both when criteria independently met); Social anxiety disorder (fear of negative evaluation; social motivation and desire intact); Social (pragmatic) communication disorder (social deficits without RRBs - mutually exclusive with ASD)