For an Idaho intake team, an Aetna card means Aetna’s national ABA rules on top of Idaho’s unusual legal floor. Idaho has no autism statute, only Department of Insurance Bulletin 18-02, and the plan’s funding type decides whether even that applies. Aetna publishes no Idaho-specific ABA document, so the national guide plus the bulletin is the whole picture.
Aetna’s precertification list for participating behavioral health providers (effective August 1, 2024) names every ABA code: 97151, 97152, 97153, 97154, 97155, 97156, 97157, 97158, 0362T and 0373T. Requests go through Availity. The ABA medical necessity guide requires a DSM-5 ASD diagnosis (F84.0; F84.3–F84.9) "obtained by an appropriate provider," services "provided directly or billed by the appropriately licensed provider," and "functional impairment on a standardized scale of functioning in the past 12 months," at least one standard deviation below the mean or a significant risk of harm. Progress is evaluated every six months. The guide describes comprehensive ABA as typically 10–25 hours a week for ages 0–7 and focused ABA as 1–20 hours a week at all ages. These are typical figures, not caps. Neither document carries an Idaho exhibit (the guide’s only state exhibit is for Maryland).[2][1][3]
Idaho is one of the few states with no autism insurance statute, and intake should say so plainly. What Idaho has instead is Department of Insurance Bulletin No. 18-02 (April 2, 2018). Reading the federal Mental Health Parity and Addiction Equity Act, ACA § 1557 and the state’s Essential Health Benefits together, the Department declared that it "will consider an exclusion of treatments for autism spectrum disorder as discriminatory and prohibited when a plan includes coverage of rehabilitative or habilitative services, such as coverage of occupational therapy or speech therapy." It applies to the individual, small-group and large-group insured markets, and to self-funded plans subject to Idaho Code title 41, chapters 40 or 41, for plan years starting on or after January 1, 2019. Covered treatment must be "consistent with other mental health services (including applicable deductibles, copayments, or coinsurance), not subject to any separate dollar limits or visit limits, and in parity with medical and surgical benefits." The bulletin defines treatment as "evidence-based care and related equipment prescribed or ordered for an individual diagnosed with an autism spectrum disorder by a licensed physician or a licensed psychologist who determines the care to be medically necessary, including but not limited to behavioral health treatment" — it does not name ABA by name, and it sets no age limit. Carriers may still review medical necessity and "periodically review the medical necessity of continuing" treatment. Two practical limits: a bulletin is weaker than a statute, and a self-funded employer plan the Department does not regulate (most ERISA plans) sits outside it entirely — plan funding type is the first fact to establish.[4]
Aetna’s guide requires services to be provided or billed by "licensed behavior analysts (in states with behavior analyst licensure laws), board-certified behavior analysts, or licensed psychologists." Idaho has no licensure law and is not on the BACB’s list, so in Idaho the BCBA credential is what qualifies. Aetna publishes no commercial ABA rates, and they are negotiated in your agreement.[1][5]
The questions that decide whether a family can start with Aetna in Idaho, and what they have to bring. Each maps onto something intake should ask on the first call.
No expiry on the diagnosis itself, but the functional evidence must be recent: "demonstration of functional impairment on a standardized scale of functioning in the past 12 months." Progress is re-evaluated every six months.[1]
An "appropriate provider (i.e. licensed psychologist/psychiatrist, physician or other health care professional qualified to diagnose mental health conditions within their scope of practice)."[1]
CPB 0648 names the diagnostic instruments used alongside clinical assessment: ADI-R, ADOS-2, CARS-2 and the Asperger Syndrome Diagnostic Scale. The ABA guide then requires a standardized functioning measure within 12 months, such as VABS-3, ABAS, VB-MAPP or ABLLS, showing impairment at least one standard deviation below the mean or significant risk of harm.[3][1]
Aetna’s national ABA documents require precertification, not a physician referral (the guide’s prescription requirement sits in its Maryland exhibit only). For Idaho state-regulated plans, Bulletin 18-02 frames covered treatment as care "prescribed or ordered" by a licensed physician or licensed psychologist, so get a written prescription.[2][1][4]
Aetna’s guide sets no age cap. Its intensity table describes comprehensive ABA as typical for ages 0–7 and focused ABA for all ages. Bulletin 18-02 sets no age limit for state-regulated plans, and self-funded plans may carry their own age terms.[1][4]
Ask the plan: Benefits verification on the member ID — establish fully insured vs. self-funded, then the plan’s age terms.
Turns on how the plan is funded. Idaho’s Managed Care Reform Act requires a managed care organization to answer a nonemergency prior-authorization request "within two (2) business days after complete member medical information is provided," "unless exceptional circumstances warrant a longer period," and makes an obtained approval final after the service is delivered except for fraud, nonpayment or loss of eligibility (Idaho Code § 41-3930). Self-funded ERISA plans follow 29 CFR 2560.503-1: 15 days, one 15-day extension, and 72 hours for urgent claims.[6][7]
Ask the plan: At benefits verification ask whether the plan is fully insured or self-funded, then confirm Aetna’s precertification turnaround and continuation lead time via Availity.
For a child on two parents’ plans, Idaho’s rule (IDAPA 18.04.14.022) makes "the plan of the parent whose birthday falls earlier in the calendar year" primary, with separate rules for divorced or separated parents. Self-funded plans follow their own documents. If the child also has Idaho Medicaid, this plan pays first because Medicaid is the payer of last resort. Get Aetna’s precertification anyway, and note that Medicaid pays CHIS on H-codes. TRICARE pays after this plan (10 U.S.C. 1079(i)(1)), and CHAMPVA is the last payer (38 CFR 17.270).[8][9][10][11]
Ask the plan: Ask Aetna at benefits verification for the coordination-of-benefits order on file, and record every other coverage the child has.
Not addressed. Aetna’s ABA guide, precertification list and CPB 0648 set no telehealth rules or POS codes for ABA.[1]
Ask the plan: Availity or the precertification line on the member card — ask which ABA codes Aetna pays via telehealth on this plan and with which POS and modifier.
Coverage decides whether Aetna in Idaho pays. These decide whether the claim survives: how sessions must be staffed and supervised, what may be billed concurrently, the per-day ceilings, who signs the note, where the service is payable, and whose NPI the claim goes out under.
Services must be provided directly or billed by licensed behavior analysts (in licensure states), board-certified behavior analysts, or licensed psychologists with behavior analysis in scope, unless state mandates, plan documents or contracts require otherwise. Where they allow services by unlicensed or non-certified staff, "there must be supervision and direction of the unlicensed or non-certified providers in line with practice standards." Aetna publishes no numeric supervision ratio.[1]
No per-day or per-week cap. The guide gives typical intensities (comprehensive 10–25 hours a week for ages 0–7 over 1–2 years; focused 1–20 hours a week at all ages over 1–4 years), evaluates progress every six months, and ends coverage on its improvement thresholds. Bulletin 18-02 bars separate dollar or visit limits on state-regulated plans.[1][4]
Outpatient ABA is setting-agnostic in the guide. In inpatient, residential or partial hospitalization settings the level-of-care criteria apply and "specific authorization for ABA is not needed in addition." The guide expects coordination with the school district and a plan that tapers toward "supports from other sources (school, as an example)." The school-setting protection in the guide is in its Maryland exhibit only. CPB 0648 notes "many Aetna plans exclude coverage of educational services."[1][3]
Services "must be provided directly or billed by licensed behavior analysts (in states with behavior analyst licensure laws), board-certified behavior analysts, or licensed psychologists where behavior analysis is within their scope," unless state mandates, plan documents or contracts require otherwise. Idaho has no licensure law, so the BCBA is the billing credential in Idaho.[1][5]
Not addressed in Aetna’s ABA medical necessity guide, precertification list or CPB 0648.[1]
Ask the plan: Aetna provider services or the participating-provider agreement — ask for a written coding determination on 97153 and 97155 billed for the same clock time.
Not addressed. The guide sets treatment-plan content (defined target behaviors, baselines, quantifiable progress criteria, generalization, transition and titration planning) but not who signs session notes or by when.[1]
Ask the plan: The Aetna participating-provider agreement and the Aetna Behavioral Health Provider Manual documentation section.
Yes, for ASD under Aetna’s national ABA guide. On state-regulated plans Idaho’s Bulletin 18-02 also bars excluding autism treatment when the plan covers rehabilitative or habilitative services. Self-funded employer plans set their own terms.
Yes. Aetna’s behavioral health precertification list includes 97151 and 97152 along with all treatment codes.
No statute. Idaho relies on DOI Bulletin 18-02 (2018): no autism exclusion where rehab or habilitative services are covered, and no separate dollar or visit limits. It sets no age limit and does not reach self-funded ERISA plans.
Payer policies change frequently and vary by plan, state, and funding type. This guide was compiled from the sources above and last reviewed September 2026; it is general information, not billing, legal, or clinical advice. Always verify current requirements against the payer's live policy and a benefits check for the specific member.
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