Department of Health. Child Assessment Service

The Child Assessment Service (CAS) Portal is an official public health gateway managed by the Department of Health of the HKSAR Government. Operating across specialized clinical centers in Hong Kong, CAS provides comprehensive multidisciplinary developmental assessments, clinical diagnoses, and tailored rehabilitation planning for children under 12 years of age exhibiting physical, cognitive, or developmental variations. The digital portal serves as a key clinical and educational platform, offering standardized screening guidelines, diagnostic protocols, and informational frameworks on common childhood conditions including Autism Spectrum Disorder (ASD), Attention-Deficit/Hyperactivity Disorder (ADHD), Developmental Coordination Disorder (DCD), Dyslexia, and developmental delays. It hosts locally normalized clinical assessment tools (such as the Hong Kong Cantonese Oral Language Assessment Scale), parent empowerment resources, and specialized healthcare toolkits—notably the Hospital Communication Toolkit for children with complex communication needs. Serving as an essential open educational resource, this governmental platform delivers primary clinical guidance, screening frameworks, and public health statistics for undergraduate and postgraduate students, clinical psychologists, pediatricians, occupational therapists, speech language pathologists, and special education practitioners studying pediatric neurodevelopment, clinical assessment, public healthcare governance, and early childhood interventions.