Parents often hear a number before they hear anything else: "insurance covers up to 40 hours," or "they only approve 10." Neither is a rule. Most plans do not publish a fixed menu of ABA hours. They approve the hours a BCBA requests if the assessment and the plan's medical necessity criteria support them, for a set authorization period, and then they look again.
This guide compares what four kinds of coverage say about hours, explains how a request becomes an approval, and shows what you can do when the approved number is lower than the recommended one. For the clinical side of the question (how many hours actually suit your child), read focused vs comprehensive ABA and is 40 hours of ABA too much.
Is there a set number of ABA hours insurance will cover?
Usually not. Florida's autism mandate, for plans it covers, requires ABA coverage but does not set weekly hours. It lets plans use "utilization review of health care services, including the review of medical necessity" (s. 627.6686(4)(d)). So hours are decided case by case, through prior authorization.
What payers do publish are typical ranges in their medical policies. Those ranges guide reviewers; they are not caps written into your plan, and your plan document controls. Here is how several 2026 policies describe hours.
How do payer policies compare on hours?
| Payer or program | Focused ABA | Comprehensive ABA | Other notes |
|---|---|---|---|
| Aetna medical necessity guide (2026) | All ages, 1 to 20 hours a week, 1 to 4 years | Ages 0 to 7, 10 to 25 hours a week, 1 to 2 years | Progress "is to be evaluated every six months" |
| Lucet policy 20.5.005 (2026), used by several health plans | "Typically ... 10 to 25 total hours" | "25 to 40 total hours of direct services weekly," mainly ages 3 to 8 | Caregiver training is "an essential component" |
| Cigna / Evernorth EN0499 (eff. 5/15/2026) | No hour bands; hours must be justified by assessment data and goals | Requests to increase hours need a clinical rationale and data | |
| TRICARE Autism Care Demonstration | No yearly or lifetime caps on ABA; services "must be driven by clinical necessity" | Authorizations run six months | |
| Florida Medicaid (under 21) | "Up to 40 hours per week" in the prior-authorized behavior plan; more may be approved if medically necessary under EPSDT | Behavior plans cover up to six months | |
Two things stand out. First, the ranges differ a lot: the same 30-hour request sits inside Lucet's comprehensive band but above Aetna's. Second, every payer ties hours to evidence, not to a diagnosis label alone. For plan-specific detail, see Aetna ABA coverage, Cigna and Evernorth ABA coverage and Florida Blue ABA coverage.
Medical policy vs plan document
A medical policy is the insurer's guide for reviewers. Your plan document (the certificate of coverage or Summary Plan Description) is the contract. If the plan document is silent on hours, the reviewer leans on the medical policy. If it lists a visit limit or an exclusion, that language controls, subject to state and federal law. Cigna's policy says so directly: "In the absence of a controlling federal or state coverage mandate, benefits are ultimately determined by the terms of the applicable benefit plan document." Ask for both documents.
How does the BCBA's recommendation become an approved number?
- Assessment. The BCBA observes your child, interviews you and uses standardized tools. Aetna, for example, asks for impairment shown on a standardized scale (such as Vineland-3 or VB-MAPP) within the past 12 months. Cigna wants a current standardized instrument and caregiver involvement, completed within 60 days before treatment starts.
- Treatment plan. The plan lists measurable goals, baseline data, the hours for each service (direct therapy, supervision, parent training) and why that intensity is needed. In Florida mandate plans, the treatment plan must include "the frequency and duration of treatment" and the treating physician's signature (s. 627.6686(7)).
- Request. The provider submits the plan for prior authorization, usually as units per authorization period. UMR, for example, asks for units per six months.
- Review. A plan reviewer compares the request with the plan's criteria. They may approve it, approve fewer hours, ask for more information, or offer a peer-to-peer call with the BCBA.
- Authorization. You get a decision for a set period, often about six months. Then the cycle repeats with new data; see ABA reauthorization every six months.
Hours vs units
Approvals are usually written in 15-minute units, not hours. Four units equal one hour. An authorization for 1,560 units of direct therapy over 26 weeks, for example, works out to 15 hours a week. Ask the provider to translate any approval into weekly hours per service so you know what the plan actually covers.
What makes a plan approve more or fewer hours?
Across the policies we reviewed, the same factors come up again and again:
- Age and type of program. Comprehensive programs are described mainly for young children; older children and teens are more often approved for focused hours.
- Severity and safety. Aggression, self-injury or elopement can support a higher intensity, if the plan shows how the hours target those behaviors.
- Measurable goals. Every requested hour should tie to goals with baselines and mastery criteria. Vague goals invite cuts.
- Caregiver participation. Aetna requires parent "engagement and commitment ... to participate"; Cigna asks for data showing caregivers "continue to actively participate" at reauthorization.
- Your child's schedule. Reviewers look at whether the hours fit around school and other therapies. Cigna's policy excludes ABA delivered at the same time as another treatment, such as speech therapy.
- Progress. At reauthorization, steady progress supports continued hours; little change over successive periods can lead a plan to cut hours or end coverage.
What can I do if the plan approves fewer hours than recommended?
A partial approval is a decision you can challenge. Steps that often help:
- Ask the BCBA whether the approved hours can still meet your child's most important goals, and which goals would wait.
- Ask the plan, in writing, for the specific criteria it used. Under the federal claims rule for employer plans, you can get relevant documents free of charge.
- Ask the BCBA to request a peer-to-peer review with the plan's reviewer.
- If needed, file an internal appeal with data, a doctor's letter and a clear link between hours and goals. See how to appeal an ABA denial.
When hours drop at a reauthorization rather than at the first request, different protections may apply; see why ABA authorizations get cut.
A checklist for your hours conversation with the plan
- Does my plan list any visit or hour limit for ABA in the plan document (not just the medical policy)?
- Which medical policy or criteria will review my child's request?
- How long is each authorization period, and how many units were approved for each code?
- Are parent training and BCBA supervision counted separately from direct therapy?
- Can approved hours be used in home, school, daycare and center settings?
- If my child's needs change mid-period, how does the provider request more hours?
If the plan quotes a hard limit on ABA visits that it does not apply to comparable medical care, ask whether that limit complies with mental health parity rules; see mental health parity and ABA.
How Hope Center sets and requests hours
At Hope Center for Behavior Change, a BCBA recommends hours after the initial assessment, based on your child's goals, wellbeing and family life. Our clinical director reviews every treatment plan before it goes to insurance, and every plan includes weekly parent training. We explain the approved units in plain hours, and if the plan approves fewer than recommended, we talk through the options with you, including a peer-to-peer review or an appeal. Start with a free benefits check: visit insurance at Hope Center, contact us or call 561-337-8865.