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Private Assessment
Explore private assessment options by province, including information to help you research providers and understand what to ask before booking.
Explore private assessment →PDA Pathways
Assessment & Diagnosis in Canada
Understanding autism assessment and diagnosis can feel overwhelming. The process, access to services and assessment pathways can vary across Canada, so knowing what to expect can help families decide where to begin.
A place to start.
Learn about assessment, diagnosis, provincial differences and where PDA fits within current diagnostic systems.
Across Canada
Diagnosis varies by province and territory
There is no single autism assessment pathway used across Canada. Provinces and territories are responsible for the delivery of health care, education and many disability services, and each jurisdiction has developed its own approach to autism assessment and services. This means families may encounter different referral processes, assessment teams, wait times, eligibility requirements and public or private options depending on where they live.
The Government of Canada notes that this variation can contribute to differences in access to diagnosis and services. Families may be able to access assessment through a publicly funded pathway, a private assessment, or both, depending on their province or territory and individual circumstances.
What an assessment may involve
Looking at the whole child
Autism diagnosis is based on developmental history, observation and clinical judgment rather than a single medical test. An assessment may consider communication, social interaction, behaviour, development, regulation, interests and other areas of functioning.
A comprehensive assessment may also consider co-occurring conditions and other factors that can affect how a child presents. Depending on the child and the service, professionals may include pediatricians, developmental pediatricians, psychologists, psychiatrists, nurse practitioners, occupational therapists and speech-language pathologists.
What families can bring
- Examples of how your child functions at home and in other settings
- Developmental and medical history
- School reports or observations
- Information about strengths, interests and challenges
- Examples of masking, shutdowns, meltdowns or changes in capacity
- Questions about co-occurring conditions or support needs
Where PDA fits
PDA is not a separate DSM-5-TR diagnosis
Pathological Demand Avoidance (PDA) is not currently recognized as a standalone diagnosis in the DSM-5-TR or in the ICD-11. It is commonly described by PDA-informed organizations and some clinicians as a profile within the autism spectrum rather than a separate diagnostic disorder.
This distinction matters when families are seeking an assessment. A clinician may diagnose autism spectrum disorder and also describe a PDA profile, demand-avoidant profile or similar presentation in the clinical formulation. Another clinician may not use PDA terminology at all, even when they recognize the child's pattern of anxiety, demand avoidance and need for control.
The terminology may vary — the child's needs still matter.
Because PDA is not a standalone DSM-5-TR diagnosis, families may hear different terminology from different professionals. A useful assessment should still help describe the child's strengths, needs, presentation and the supports that are likely to help.
PDA-informed assessment
Why the wider picture matters
PDA can be particularly important to discuss when a child shows a strong pattern of demand avoidance, high anxiety around everyday expectations, a need for control or autonomy, and significant differences in how they function across settings.
PDA-informed assessment guidance emphasizes gathering detailed information from different settings and considering the child's overall presentation rather than relying on a single observation. For families, it can be helpful to explain what happens at home as well as what professionals see during an appointment or at school.
Explore your options
Public and private assessment
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Public Assessment
Explore provincial and territorial information about publicly funded autism assessment pathways and where to find current government resources.
Explore public assessment →A note for families
Use this page as a starting point
Assessment pathways, eligibility requirements, wait times and provider availability can change. Always confirm current information with the relevant provincial or territorial service, assessment provider or health professional.
This page is intended to provide general information and is not a diagnosis or a substitute for professional medical or psychological advice.