In our previous blog, we discussed the early signs of Autism Spectrum Disorder (ASD), including delayed speech, social challenges, and repetitive behaviors. Recognizing these signs early is crucial, but understanding how to proceed with a diagnosis is just as important. A formal diagnosis is key to accessing the support, interventions, and resources your child needs to thrive. Here’s a step-by-step guide on how to get your child diagnosed with autism.
1. Start with Your Pediatrician
Your child’s pediatrician is often the first step in the diagnostic journey. Share your observations and concerns, such as developmental delays or behavioral challenges. Pediatricians may use developmental screening tools and refer you to specialists for further evaluation.
What to expect:
- Tools like the Modified Checklist for Autism in Toddlers (M-CHAT).
- Questions about your child’s behaviors, social interactions, and milestones.
- Referrals to specialists, such as developmental pediatricians or child psychologists.
2. Get a Referral for a Specialist
If your pediatrician identifies potential concerns, they will likely refer you to specialists. These experts play a vital role in diagnosing autism and tailoring support for your child.
Common referrals include:
- Developmental Pediatricians: Specialize in diagnosing and managing developmental conditions.
- Child Psychologists: Conduct comprehensive autism assessments using standardized diagnostic tools.
- Speech and Language Pathologists (SLPs): Evaluate communication delays or challenges.
How RCM Behavioral Health Can Help
RCM’s Board-Certified Behavior Analyst (BCBA) professionals are here to assist you in navigating this process and connecting with the right specialist. These experienced professionals can guide you through finding the appropriate resources and specialists to help your child:
Theresa Howell,
National Director of Behavioral Health
Email: theresa.howell@rcmt.com
Mobile: (661) 753-7752
Dr. Alison Duncan,
National Manager of Behavioral Health
Email: alison.duncan@rcmt.com
Mobile: (203) 494-1328
3. Understand the Diagnostic Evaluation
A diagnosis involves comprehensive assessments and observations. Specialists evaluate your child’s developmental history, behaviors, and responses to structured tasks.
Standardized tools may include:
- Autism Diagnostic Observation Schedule (ADOS): Observational assessment of communication and behaviors.
- Autism Diagnostic Interview-Revised (ADI-R): Detailed caregiver interviews about development and behaviors.
Tip: Keep a journal of your child’s milestones, behaviors, and any red flags. This information helps specialists gain a clearer picture.
4. Consider a Multidisciplinary Approach
For a thorough evaluation, some families consult a multidisciplinary team. This team may include developmental pediatricians, psychologists, speech therapists, and occupational therapists, all working together to assess your child’s needs.
5. Understand Diagnostic Criteria
Autism diagnoses are guided by the DSM-5 Criteria, the diagnostic guidelines outlined in the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition. These criteria focus on:
- Persistent difficulties in social communication and interaction.
- Repetitive behaviors, restricted interests, or sensory sensitivities.
- Early onset of symptoms that impact daily functioning.
6. Seek Support While Waiting for a Diagnosis
The diagnostic process can take time. While waiting, you can:
- Explore early intervention services available in your area.
- Join local or online autism support groups.
- Begin therapies such as speech or occupational therapy.
7. Post-Diagnosis Steps
Once your child has been diagnosed, you’ll work with specialists to create an individualized intervention plan. This may include:
- Speech and Occupational Therapy: Addresses communication and sensory needs.
- Applied Behavior Analysis (ABA): Focuses on behavioral interventions.
- Educational Accommodations: Access Individualized Education Programs (IEPs) through your child’s school.
8. Be Your Child’s Advocate
Understanding the diagnostic process empowers you to advocate effectively. Stay informed about available resources, interventions, and your child’s rights in educational and healthcare systems.

Final Thoughts
Getting a diagnosis for your child is a critical step toward accessing the right support. With early intervention and tailored strategies, children with autism can achieve significant growth and lead fulfilling lives. Remember, you’re not alone—there are resources and communities ready to help you every step of the way.
Sources for Reference
- Centers for Disease Control and Prevention (CDC): Screening and Diagnosis of Autism Spectrum Disorder
- Autism Speaks: The Diagnostic Process
https://www.autismspeaks.org/autism-diagnosis
- National Institute of Mental Health (NIMH): Autism Spectrum Disorder
https://www.nimh.nih.gov/health/topics/autism-spectrum-disorders-asd
- American Academy of Pediatrics: Developmental Screening
- Autistic Self Advocacy Network (ASAN): Getting Diagnosed