Screening is not diagnosis, and that's fine
Screening tools flag risk; a diagnostic evaluation answers the question. The M-CHAT-R questionnaire is the standard screen at the 18-month and 24-month well visits, and you can complete it yourself in ten minutes. Our M-CHAT hub walks through scoring and what to do with the result, and the CDC explains the clinical picture on its autism screening and diagnosis pages. A concerning screen does two useful things: it justifies referrals, and it starts the paper trail that insurance and school systems respond to.
Door 1: The free public evaluations
Under 3: your state's early intervention program evaluates development for free and can start services (like speech therapy) without any diagnosis. It does not diagnose autism, but it treats the delays that matter right now, and its records strengthen the later diagnostic case. Start with our state-by-state early intervention guide.
3 and older: your public school district must evaluate children suspected of a disability, free, under IDEA, even if your child is not enrolled yet. Put the request in writing to the district's special education office and keep a copy. Once you consent, federal rules give districts a deadline to complete the evaluation (60 days unless your state sets its own). A school evaluation determines educational eligibility, which can unlock an IEP with speech and other services. It is not a medical diagnosis, and it does not need to be one to get school help started.
Door 2: The medical diagnostic evaluation
A medical diagnosis usually comes from a developmental-behavioral pediatrician, child psychologist, child psychiatrist, or neuropsychologist. This is the report that insurance plans want for autism-specific treatment benefits, and the wait for these specialists is the bottleneck families feel most. Costs with insurance are usually your plan's specialist and testing cost-sharing; for children on Medicaid, diagnostic evaluations fall under the EPSDT benefit when medically necessary. If you are quoted a self-pay price, ask for the exact CPT codes and a written estimate, and compare a second provider; self-pay pricing varies widely by region and provider type.
Honest ways to shorten the wait
- Get on multiple lists and say yes to cancellations. Ask each office to note that you can come on short notice.
- Ask about university training clinics. Psychology and speech programs run supervised evaluation clinics with shorter queues and lower self-pay rates.
- Ask your pediatrician about telehealth diagnostic programs. Several health systems now run them for clear-cut presentations; validity depends on the child and the model, so let the clinician judge fit.
- Start therapy before the label. Speech therapy referrals do not require an autism diagnosis. Neither does early intervention, a school IEP evaluation, or parent coaching. Waiting for the diagnosis to do anything is the most common and most costly mistake.
- Keep working the free doors. The school and EI records often make the eventual medical evaluation faster and sharper.
What to bring so the evaluation lands
- Short phone videos of the behaviors you want assessed, in natural settings.
- A one-page timeline: milestones, regressions, what changed when.
- Any screens and reports you already have: M-CHAT results, EI evaluations, school records, hearing test.
- Your questions, written down. Appointments are short; paper survives them.
Hearing deserves a special mention: an audiology check is a standard early step whenever speech is delayed, because childhood hearing loss can look like inattention or language delay.
After the evaluation
If the answer is autism, ask the evaluator to be specific in the report about recommended services and intensity; that language drives insurance approvals. Then read our autism insurance mandate guide to use the benefits your plan must offer. If the answer is not autism, you leave with a documented developmental picture and usually with therapy recommendations anyway. Either way, home practice keeps moving: the autism language development hub has scripts you can start tonight.
Frequently asked questions
Do I need a medical diagnosis to get help at school?
No. Schools run their own free evaluations and use educational eligibility criteria. A child can qualify for an IEP with speech and support services without a medical autism diagnosis, and a medical diagnosis alone does not guarantee school services.
Our pediatrician said to wait and see. What should we do?
You can ask for the screen and referrals anyway. Screening at 18 and 24 months is standard practice, parents can self-refer to early intervention without any doctor involvement, and school evaluations start with a written parent request. Acting early does not commit you to anything.
Are telehealth autism evaluations legitimate?
Some are. Established health systems run structured telehealth diagnostic programs, and they work best for younger children with clearer presentations. Ask who conducts it, what tools they use, and whether local providers and insurers accept the resulting report.
How long are waitlists for a specialist evaluation?
Commonly months, and it varies a lot by region and provider type. That is why families get on several lists, use cancellation slots, consider university clinics, and start therapy and school processes while they wait.
What does an evaluation cost without insurance?
Self-pay prices vary too much by region and provider to quote responsibly. Ask each provider for the CPT codes they will bill and a written estimate, compare at least two, and ask university clinics about reduced-fee evaluations. For children with Medicaid, medically necessary evaluations are covered under EPSDT.
Sources
- CDC: Autism screening and diagnosis
- CDC: Learn the Signs. Act Early.
- Medicaid.gov: EPSDT benefit
- ECTA Center: State Part C contacts
- CDC: Hearing loss in children, data
Keep reading
- M-CHAT autism screening hub
- Autism insurance mandates: using your benefits
- Autism language development hub