diagnosing children

Getting a diagnosis

Who can diagnose autism?

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For a more detailed pathway through the diagnostic process click here to visit our dedicated resource Autism: What Next?

An Australian guideline for the diagnosis and assessment of autism spectrum disorders (ASD) was published in 2018.

This aims to make autism assessment and diagnosis more consistent across the country.

The diagnostic evaluation may be conducted by:

infographic depicting a team of health professionals or one health professionals

Commonly a multidisciplinary team will include a paediatrician (or child and adolescent psychiatrist), a psychologist and a speech pathologist, but other health professionals may provide input if required.

A single health professional may be able to diagnose a child with obvious signs of autism. A team approach is necessary for children with less clear symptoms or who have other conditions that make the diagnosis more complicated.

The guideline recommends the following steps to diagnosis:

  1. Assessment of function: a health professional will ask you and/or your child questions about their thinking and learning, speech and language, daily living skills, friendships and school. This will assess their abilities and any support needs they have and identify if they have any developmental delays.
  2. Medical assessment: a doctor will examine your child and conduct tests to see if there could be a medical cause for their developmental delays.
  3. Diagnostic assessment: this step is necessary only if doctors can’t find another cause for your child’s behaviour. You and your child will be interviewed and your child will be observed for signs of autism. You can read more about what’s involved here.

Where can we get a diagnosis?

Services vary from state to state and from city to rural locations. In the first instance it’s best to talk to your primary health care provider, usually your GP, who will be familiar with what’s available in your local area.

There are several state government-funded services that specialise in the assessment and diagnosis of autism.

These have the advantage of being free but are often in high demand, with waiting lists stretching to several months. Many services now need a referral letter from a paediatrician, although some may accept referrals directly from your GP.

In VIC, public diagnostic services are provided through The Royal Children’s Hospital Network and VIC Health Child and Adolescent Health services.  

Your GP or Paediatrician will be able to provide more information and refer you to your nearest service.

In QLD, public diagnostic services are provided through Children’s Health Queensland Hospital and Health Service.  Your GP or Paediatrician will be able to provide more information and refer you to your nearest service.

In WA, public diagnostic services are provided through Western Australia Child and Adolescent Health Service, and for regional areas here. A referral can be made by parents, legal guardians or professionals.

The Autism Association of Western Australia provides autism assessments at no cost for eligible individuals aged 2-12 and 13-30 years.  A GP, Consultant Psychiatrist, or Consultant Paediatrician referral is required.

In SA, The WCH Child Development Unit (CDU) provides developmental assessment service for children at these assessment units:

Women’s and Children’s Hospital – Child Development Unit: Phone 08 8161 7287

Flinders Medical Centre – Child Assessment Team: Phone 08 8204 4433

Lyell McEwin – Gordon McKay Child Development Unit: Phone 08 7485 4109

In NT, the Children’s Development Team provide developmental assessment and support for children and their families with screening services here.

Alice Springs: (08) 8951 6720

Darwin (Casuarina): (08) 8922 7283

See your GP or child nurse for an assessment referral.

The Child Development Service is a Canberra based service that provides residents in the ACT with free Autism assessments for children aged 0-12. A referral from a Paediatrician or Psychiatrist is required.

Tasmanian Autism Diagnostic Service (TADS) provides fee free diagnostic services. The assessment service is provided for people across Tasmania under 18 years of age. Referrals are accepted from a paediatrician, child/adolescent psychiatrist or psychologist.

St Giles Developmental Assessment Team (DAT) – fully funded multidisciplinary assessment services for preschool-aged children only.

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There are also private health professionals and teams who conduct assessments on a fee-paying basis. If you can afford this option, this is usually the fastest way to get a diagnosis.

For children aged 13 years or under, Medicare rebates are available to help cover at least some of the cost. These Medicare items cover:

  • assessment and diagnosis by a paediatrician or child and adolescent psychiatrist
  • up to 4 allied health professional assessments to assist with the diagnosis. (Eligible allied include psychologists, speech pathologists, occupational therapists, audiologists, optometrists, orthoptists or physiotherapists)

If you have private health insurance ‘extras’ cover it’s worth checking if this can help cover the cost of autism assessments too.

Some state autism associations offer multidisciplinary assessments (at a cost). You will need a doctor’s referral for these. Other state associations will be able to direct you to assessment services in your local region.

For children who live in rural and remote locations options are more limited, but thanks to modern technology things are improving. Some government services, state autism associations and organisations like Royal Far West offer telehealth services where families can consult with health experts over a secure video link.

Royal Far West also offers a residential multidisciplinary assessment program for children who live in regional and remote NSW. For localised services like these please check in with Autism Connect.

*but could also be a nurse, allied health professional or an Aboriginal health worker.

Health professionals your child may see during the assessment process

  • Paediatrician — a medical doctor with special training and skills in children and their diseases. A developmental paediatrician specialises in child development and behaviour.
  • Child and adolescent psychiatrist — a medical doctor with special training in treating children and teenagers with mental illness.
  • Psychologists — an allied health professional trained to assess and treat mental health and behavioural problems.
  • Speech pathologist — an allied health professional who assesses and treats speech, language and communication disorders.
  • Occupational therapist (OT) — an allied health professional trained to assess and support people with physical, sensory, or cognitive (thinking) problems and help them regain their independence.
  • Social worker — An allied health professional trained to assist people and families manage difficulties. This could be through a combination of counselling and practical support.

What to do while you’re waiting for an assessment

It can be a stressful time waiting for your child’s autism assessment. The good news is your child doesn’t need a formal autism diagnosis to access support.

The NDIS’s Early Childhood Early Intervention (ECEI) approach is available to all children aged under 7 who have been identified with a developmental delay or disability.

The first step is to meet with an NDIS Early Childhood Partner to discuss your child’s needs. They can give you information about the supports and services available in your local community, provide some short-term early intervention support where appropriate, and request access into the NDIS if this is required.

You could also attend an Early Days workshop. These are free workshops for parents and carers of young children with autism but are also suitable for parents whose children have not yet received a diagnosis.

autism what next logo
For a more detailed pathway through the diagnostic process click here to visit our dedicated resource Autism: What Next?

“As parents, we did not suspect anything until he started kindergarten”