Autism Assessment at Alethia
Neuroaffirming assessment and thorough diagnostics for adults.
Short wait time — typically 2–4 weeks
Private autism assessment for adults in Copenhagen at Alethia costs from 9,400 DKK (without ADOS-2) to 12,900 DKK (with ADOS-2) and typically takes 2–4 weeks. The assessment uses the internationally recognized ADOS-2 (Autism Diagnostic Observation Schedule), autism anamnestic interview (AAA), and RAADS-R self-report. The clinic works with a neuroaffirming approach focused on strengths-based support. Wait time is 2–4 weeks, and no referral is required. Our multidisciplinary team speaks Danish, English, Norwegian, and Swedish and has specialized experience with autism in women and late-diagnosed adults.
What is autism?
Autism is a natural neurological variation in how people experience and interact with the world. It is not a disease or something to be 'fixed'. Autism affects social interactions, communication, sensory processing, and behavioral patterns in ways unique to each individual.
Many adults, especially women and those with high intellectual capacity, receive their diagnosis later in life. They have often developed compensatory strategies ('masking') that hide their autistic traits from the world, but which cost enormous energy and can lead to burnout, anxiety and depression.
At Alethia, we offer professional diagnostic evaluation of autism in a safe, neuroaffirming environment. We see autism as part of natural human neurodiversity and work with a strengths-based approach focused on helping you understand yourself better.
How much does a private autism assessment cost?
An autism assessment at Alethia costs 9,400 DKK across three sessions (without ADOS-2). If ADOS-2 is indicated, the total price is 12,900 DKK. You pay per session and are not locked into a package.
How long does an autism assessment take?
From first session to diagnosis, the assessment typically takes 2–4 weeks. Wait time from booking to first appointment is 2–4 weeks. You can book directly online without a referral.
What tools are used for autism assessment?
We use the autism anamnestic interview (AAA) as our primary diagnostic tool, supplemented by RAADS-R, CAT-Q, or other relevant self-report questionnaires. ADOS-2 is used only when the diagnostic picture remains unclear after AAA. AAA is a structured diagnostic interview with an informant (typically a parent) that systematically evaluates social interaction, communication, behaviour, and interests across the full developmental history.
Do I need a referral?
No. You can book directly at Alethia without a referral from your GP. If you are a member of Sygeforsikring Danmark (group 1, 2, 5, 6), 25 or younger, and have a GP referral, you may be eligible for a refund on assessment and psychotherapy.
How we help
- Gold-standard assessments using ADOS-2, AAA and other validated tools
- Strengths-based support, building on your unique way of thinking
- Practical guidance for communication, relationships, and sensory needs
- Lifelong strategies tailored to your goals and daily life
- Specialized experience with autism in women and late-diagnosed adults
The assessment process step by step
Late diagnosis of autism is more common than many realize. Many adults, especially women and those with high intellectual capacity, have developed compensatory strategies that effectively hide autistic traits from the world. Burnout, anxiety, and depression can be consequences of years of masking. A neuroaffirming assessment sees autism as part of natural human variation and focuses on understanding your strengths and needs, not on finding deficits.
Initial consultation
A clinical interview where we get to know you, understand your experiences, and explore potential symptoms. Approx. 2 hours.
Autism Anamnestic Interview (AAA)
The primary diagnostic interview focusing on developmental history, social interactions, communication and sensory processing. Supplemented with RAADS-R self-report. Approx. 2 hours.
ADOS-2 observation (when indicated)
Structured observation using ADOS-2 (Autism Diagnostic Observation Schedule) is added when the diagnostic picture is unclear or when symptoms are effectively camouflaged. Approx. 1.5-2 hours.
Diagnostic feedback
We review all results with you, explain our findings, and prepare a detailed report with diagnostic description.
Support plan
Individual plan with concrete strategies, possible therapy, and guidance for communication, sensory needs, and daily life management.
Why Alethia
Why choose Alethia for your autism assessment?
Neuroaffirming approach
We see autism as a natural variation, not a disease. Our assessment is strengths-based and focuses on understanding you, not on finding deficits.
ADOS-2 and AAA
We use the internationally recognized tools ADOS-2 (observation) and AAA (Autism Anamnestic Interview), supplemented with RAADS-R and CAT-Q.
Concurrent ADHD assessment
50 to 70% of adults with autism also have ADHD. We screen for both conditions from the start, so you don't end up with only half the picture.
Wait time 2 to 4 weeks
A complete autism assessment can typically be completed within 2 to 4 weeks. In the public system, the wait is often over 1 to 2 years.
Everything under one roof
Clinical psychologists and psychiatrists collaborate closely. If medical treatment is needed for e.g. comorbid ADHD, it can be initiated immediately.
Experience with late-diagnosed adults
Many of our clients are adults who have lived with unidentified autism for decades. We understand masking, compensation, and the challenges that come with it.
Pricing
Autism Assessment Pricing
Without ADOS-2
Clinical interview and screening
Approx. 2 hours
2,900 DKK
Autism assessment with AAA
Approx. 2 hours
3,500 DKK
Feedback with report and treatment plan
Approx. 2 hours
3,000 DKK
Total price
9,400 DKK
With ADOS-2 (when indicated)
Clinical interview and screening
Approx. 2 hours
2,900 DKK
Autism assessment with AAA
Approx. 2 hours
3,500 DKK
ADOS-2 observation
Approx. 1.5–2 hours
3,500 DKK
Feedback with report and treatment plan
Approx. 2 hours
3,000 DKK
Total price
12,900 DKK
ADOS-2 is added when the diagnostic picture is unclear or when symptoms are effectively camouflaged.
Regardless of the outcome, you always receive a feedback session with a written report and a plan for next steps.
Who is the assessment for?
Our diagnostic process is for adults (18+) who:
- Experience persistent difficulties in social situations despite many attempts to adapt
- Have sensory over- or under-sensitivity (light, sound, touch, taste)
- Feel fundamentally different from others, 'like watching the world from outside'
- Tend toward intense special interests and need for predictability
- Experience burnout, anxiety or depression as possible consequences of 'masking'
- Have received ADHD or anxiety diagnosis, but feel it doesn't explain everything
- Want self-understanding and clarity regardless of whether they receive a diagnosis
Free Screening
Try our free autism tests
Scientifically validated screening tools, completely anonymous. No data stored. RAADS-R measures autistic traits, and CAT-Q measures camouflaging.
Frequently asked questions
Autism assessment focuses on social interaction patterns, communication, and sensory experiences, primarily through ADOS-2 observation. ADHD assessment focuses on attention, impulsivity, and hyperactivity via DIVA-5 interview. Many adults have both conditions, and we can assess both ADHD and autism in the same process.
Yes, many adults, especially women, discover their autism later in life. Autism in adults, particularly those with average or high intelligence, is often overlooked in childhood. Many develop 'masking' strategies that hide their autistic traits. A professional assessment can provide clarity and understanding.
The process costs from DKK 9,400 (clinical interview, AAA, and feedback). If ADOS-2 is indicated, the price is DKK 12,900. See our pricing page for details.
Yes, we offer assessment and diagnostics in Danish, English, Norwegian and Swedish. Our psychologists and psychiatrists are experienced working with international clients.
You receive a detailed report with diagnostic clarification and recommendations. We offer follow-up therapy focusing on strengths-based strategies, sensory needs, communication and relationships. Many clients experience great relief from better understanding themselves.
In the public system, the wait for adult autism assessment is often over 1–2 years. At Alethia in Copenhagen, the wait is 2–4 weeks for the first appointment, and a complete autism assessment can typically be completed within 2–4 weeks. No referral needed. Book directly online.
Related assessments
Many adults with autism also have ADHD or other co-occurring conditions. We can assess for both in the same process.
Ready to take the next step?
Book an appointment for an assessment or contact us for an informal conversation.