Prior Authorization for ABA: Getting the First Yes

What prior authorization is

Most health plans require prior authorization (pre-approval) before they will pay for ABA. The plan reviews a diagnosis and a treatment plan and decides whether the service is medically necessary before it starts. ABA is on nearly every plan's prior-auth list, alongside residential treatment, partial hospitalization, intensive outpatient programs, and neuropsychological testing.

Authorizations are almost always time-limited. Plans commonly approve ABA in six-month blocks and require reauthorization each period, with updated progress data. This is why families relive the approval fight two or three times a year. Expect it and build a system for it rather than being surprised each time.

The documentation a prior auth needs

A strong ABA authorization request generally includes:

1. A diagnosis of autism spectrum disorder from a qualified provider. The

ICD-10 / DSM-5 code for autistic spectrum disorder is F84.0. The diagnosis should come from a provider the plan recognizes for ASD diagnosis (developmental pediatrician, child psychiatrist, licensed psychologist, pediatric neurologist, or in some plans a pediatrician or nurse practitioner).

1. A comprehensive ABA assessment by a Board Certified Behavior Analyst

(BCBA), used to build the treatment plan. Plans usually authorize the assessment first, then the treatment.

1. An individualized treatment plan that states: specific measurable goals,

the type and frequency of treatment (hours per week), where it is delivered, who delivers it (BCBA supervision plus technician hours), and caregiver involvement goals.

1. Baseline and progress data / outcome measures. Reauthorization turns on

showing progress. TRICARE, for example, requires four standardized baseline measures (PDD Behavior Inventory, Vineland Adaptive Behavior Scales, Social Responsiveness Scale, and a parenting stress index) and repeats them on a set schedule. Commercial plans want progress data too. Keep your own copies.

Who is responsible for getting the authorization

• In-network provider: the provider or agency usually handles prior auth,

reauthorization, and claims for you. This is the easiest path and the cheapest (in-network cost sharing). Stay in-network if you can.

• Out-of-network provider (often a PPO): the member is frequently on the

hook to obtain the authorization. Do not assume the provider will. If your provider does not bill insurance, you may be able to give them permission to call on your behalf, or you call the plan yourself. See also single-case-agreements-out-of-network.

Practical rules that prevent denials

From the Mental Health and Autism Insurance Project's guidance:

• Always seek authorization first, even in a PPO where it may not be strictly

required. It creates a record that you went through the proper channels, which protects your right to appeal later. Some plans charge a penalty or refuse to pay at all if you skip it.

• Document every call. Write down the date, the name of the representative,

and a tracking / reference number for each call. Plans frequently claim they never received documents.

• Send documents so you can prove receipt. Certified mail (keep the receipt)

or fax with a confirmation. Follow up by phone about a week later to confirm receipt.

• Save written records. If you use the plan's online chat, print or save it.

Keep copies of every treatment plan, assessment, and authorization letter.

• Watch the clock on reauthorization. Start the next request before the

current authorization expires so there is no gap in services. If previously approved care is being cut, you are entitled to advance notice and an expedited appeal (see appeals-denials-external-review).

A note for Kaiser members

If you are with Kaiser and a Kaiser clinician will not approve more intensive treatment, you must make a formal request to the member services department before starting services. Families have lost the right to appeal by starting care without that formal request on record. (Source: Mental Health and Autism Insurance Project.)

If prior auth is denied

A prior-auth denial is not the end. It is usually a medical-necessity denial, which you can appeal, and if the internal appeal fails, take to independent external review. See appeals-denials-external-review.