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Combined autism and ADHD assessments in Adelaide

Our combined autism and ADHD assessment in Adelaide looks at both in one process, with one report, for children, teens and adults aged 5 to 60. It happens at our clinics, or at school for under-18s, privately with no referral needed, and costs less than booking the two separately.

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  • Ages5 to 60
  • One processOne psychologist and one report
  • FundingPrivate, no referral needed
  • FeeLess than booking the two separately

What is a combined autism and ADHD assessment?

Autism and ADHD often occur together, and some signs can overlap.12 A combined assessment looks at both in one process, with one psychologist, so you don’t have to go through two separate assessments. ADHD can still be diagnosed when autism is also present.1 You get one written report and a feedback session that explain the findings and practical next steps.

For children and teens

You might say: My child seems to fit both

Some children are always on the go and also find friendships, change or noise hard. A combined assessment for ages 5 to 17 gathers information from home and school, looks at both questions together, and can happen at school.

For adults

You might say: I’m an adult wondering about both

Many adults wonder about autism and ADHD after years of finding focus, organisation, social situations or sensory overload hard. A combined assessment for ages 18 to 60 includes your history from childhood and, with permission, input from someone who knows you well.

When one answer doesn’t fit the whole picture

You might say: One diagnosis doesn’t explain everything

If you or your child already has an autism or an ADHD diagnosis but some difficulties still don’t make sense, talk to our team. They can help you decide between a combined assessment and a single one.

All our assessments

Not sure what to ask for

You might say: We’re not sure it’s either

Difficulties with learning, anxiety or sleep can look like autism or ADHD. Our free first call helps work out which assessment, if any, fits best.

All our assessments

Diagnosis and medication

You might say: We want to know about medication

Our psychologists can diagnose ADHD but can’t prescribe. To start medication you need a psychiatrist, a paediatrician or, in South Australia, a specially trained GP (for children 8 and over, and adults), who will do their own assessment.4

Can a GP in Adelaide diagnose ADHD?

Support after an assessment

You might say: We’d like support afterwards

After a diagnosis, a psychologist can help with routines, emotions, sensory needs, school, work and relationships, in a neuro-affirming way.

Autism support and therapy

How does a combined assessment at CHSA work?

  1. A free first call

    Call 08 8166 4700 or send an enquiry. Our team talks through whether a combined assessment fits, the cost and where it will happen.

  2. A first conversation

    Your psychologist starts with a detailed interview, with you or with the parent or carer, about current difficulties, development, childhood, health and family history.

  3. Questionnaires and sessions

    Questionnaires are completed by you and by others who know you or your child well, such as teachers or a partner.3 Structured sessions at our clinic, or at school for children and teens, look at communication, social understanding, sensory needs, attention and daily life.

  4. Report and feedback

    You receive one written report covering both autism and ADHD, usually within 2–3 weeks, and a feedback session (in person, or by phone or video) explaining the findings and practical recommendations.

How much does a combined autism and ADHD assessment cost?

Autism and ADHD assessment fees (private)
ServiceLengthFee
Combined autism and ADHD assessment (ages 5 to 60)Full assessment, one report and feedback$2,500
Autism assessment on its ownFull assessment, report and feedback$2,000
ADHD assessment on its ownFull assessment, report and feedback$1,800

Fees as listed on our fees and funding page. Booked separately, the two assessments cost $3,800. Each fee covers the interviews, questionnaires and testing, the written report and a feedback session. Our team confirms the fee before the assessment is booked.

Ways to pay

  • Private

    Our assessments are privately funded. You don’t need a referral from a GP or anyone else to book.

  • Medicare and NDIS

    Medicare rebates and NDIS funding can’t be claimed for our assessment fees, so a GP referral or mental health care plan won’t lower the cost. The report can still support an NDIS access request, or support at school, study or work.

Who does combined autism and ADHD assessments?

Our combined assessments are done by our assessment psychologists, who are registered with the Psychology Board of Australia and assess children, teens and adults. If therapy would help afterwards, our psychology team can support you.

All our psychologists are registered with Ahpra.

Where do combined assessments happen?

North Clinic, Salisbury

40 Ann St, Salisbury SA 5108Mon–Fri 9:00 AM–5:00 PMAbout the Salisbury clinic

South Clinic, Seacliff

18-20 Scholefield Rd, Seacliff SA 5049Mon–Fri 9:00 AM–5:00 PMAbout the Seacliff clinic

At school

Children and teens (17 and under) can also be assessed at their school in Adelaide’s northern and southern suburbs and the city. Adults are usually seen in clinic.

By phone or video For the first conversation and feedback

Common questions about combined autism and ADHD assessments

Can you be assessed for autism and ADHD at the same time?

Yes. ADHD can be diagnosed when autism is also present,1 and a combined assessment looks at both in one process, with one report.

How are autism and ADHD different?

Autism mainly affects social communication, and often brings strong interests, a need for routine and sensory differences.2 ADHD mainly affects attention, activity and impulsivity.4 Some signs overlap, which is why a combined assessment considers both together.

What does AuDHD mean?

AuDHD is a word some people use when they have both autism and ADHD. It isn’t a separate diagnosis: the report says whether autism, ADHD, both or neither fits.

Do I need a referral for a combined assessment?

No. Our assessments are private, so you can contact us directly. A GP referral doesn’t lower the cost, and Medicare rebates and NDIS funding can’t be claimed for our assessment fees.

Will a doctor use the report to prescribe ADHD medication?

A psychiatrist, paediatrician or trained GP does their own assessment before prescribing,4 so our report doesn’t replace it. The report is still useful for understanding the diagnosis and for support at home, school, study or work.

What if only one of them fits?

The report explains whatever fits: autism, ADHD, both or neither, along with strengths and practical recommendations.

References

Show all 4 sources
  1. Australian ADHD Professionals Association. (2022). Australian evidence-based clinical practice guideline for attention deficit hyperactivity disorder: co-occurring conditions and differential diagnosis. adhdguideline.aadpa.com.au (accessed 11 November 2026). Back to text for reference 1
  2. Autism CRC. (2023). National guideline for the assessment and diagnosis of autism: glossary. autismcrc.com.au (accessed 11 November 2026). Back to text for reference 2
  3. Australian ADHD Professionals Association. (2022). Australian evidence-based clinical practice guideline for attention deficit hyperactivity disorder: ADHD diagnosis. adhdguideline.aadpa.com.au (accessed 11 November 2026). Back to text for reference 3
  4. SA Health. (2026). ADHD care through a GP. sahealth.sa.gov.au (accessed 11 November 2026). Back to text for reference 4

Talk to our team

Book online or call us. The first call is free.

We usually reply within 1–2 business days, Monday to Friday, 9am to 5pm.

Other ways to reach us

Ask anything before you book. The first call is free.

Phone
08 8166 4700
Email
enquiries@chcsa.com.au
Hours
Mon–Fri 9:00 AM–5:00 PM
North Clinic
40 Ann St, Salisbury
South Clinic
18-20 Scholefield Rd, Seacliff