For a Mississippi intake team an Aetna card means three layers: Aetna’s national ABA medical necessity guide and precertification list, Mississippi’s autism mandate in § 83-9-26, and the plan’s funding and market, which decide whether the mandate applies. Aetna runs no MississippiCAN plan.
Aetna covers ABA for autism spectrum disorder (ICD-10 F84.0, F84.3–F84.9) under its ABA medical necessity guide, with CPB 0554 treating ABA for other indications as experimental and CPB 0648 covering ASD evaluation. The behavioral health precertification list (effective August 1, 2024) names 97151 through 97158, 0362T and 0373T. Medical necessity needs functional impairment "on a standardized scale of functioning in the past 12 months" at least one standard deviation below the mean, or significant risk of harm, with hours set by a severity grid and protocol modification authorized at 1 to 2 hours per 10 hours of treatment. Progress is evaluated every six months. The guide’s only state exhibit is Maryland; "Other state laws and regulations may apply in other states," which in Mississippi means § 83-9-26.[1][2][3][4]
Mississippi’s autism mandate is Miss. Code Ann. § 83-9-26, enacted as HB 885 in 2015. A health insurance policy "shall provide coverage for the screening, diagnosis, and treatment of autism spectrum disorder" for policies delivered, issued or renewed in the state (or outside it if insuring Mississippi residents) on or after January 1, 2016. Treatment means evidence-based care "prescribed or ordered" by a licensed physician or licensed psychologist who finds it medically necessary, and it includes "behavioral health treatment" (behavior modification and counseling programs "including applied behavior analysis"), pharmacy, psychiatric, psychological and therapeutic care. Behavioral health treatment must be "provided or supervised by a licensed behavior mental health professional," and a diagnosis of ASD means assessments "performed by a licensed psychologist or licensed physician." The limits sit in subsection (5): ABA coverage "shall be limited to twenty-five (25) hours per week, and shall not be required beyond the age of eight (8) years," and "no more than ten (10) hours per week shall be for the services of a licensed behavior analyst," with all services "under the supervision or direction of a licensed behavior analyst or licensed psychologist." Those limits can be exceeded under an ongoing treatment plan "if medical necessity for the extension is determined to exist," and otherwise the policy’s appeal rights govern. Dollar limits, deductibles and coinsurance may not be less favorable than for medical and surgical benefits. Except for inpatient care, the insurer may review the treatment plan every six months, at its own cost. Schools’ IEP, IFSP and IDEA obligations are not shifted to insurers. Subsection (8) exempts non-grandfathered individual and small-group plans that carry ACA essential health benefits, and subsection (9) requires small employers with 100 or fewer eligible employees only to offer the coverage (they may charge for it). Self-funded ERISA plans are outside state law. The Insurance Department’s autism page lists Blue Cross & Blue Shield of Mississippi, UnitedHealthcare and Ambetter of Magnolia as having "voluntarily removed all age restrictions" for ABA, and tells families to confirm with their plan.[7][8]
Mississippi licenses behavior analysts. The BACB’s licensure table lists Mississippi (2015) with the Mississippi Autism Board, which licenses Licensed Behavior Analysts and Licensed Assistant Behavior Analysts under Miss. Code Ann. § 73-75. To be licensed as a behavior analyst a person needs at least a master’s degree, "current and active certification" as a BCBA or BCBA-D, a fingerprint-based state and FBI background check, and the Board’s other requirements, which include an oral examination the Board gives at least quarterly (Rule 3.2); licenses run three years but never past the BACB certification. Assistant behavior analysts need a bachelor’s degree, BCaBA certification and proof of supervision by a licensed behavior analyst. Technicians are not licensed: the supervising licensee registers each Registered Behavior Technician with the Board, the technician "works solely under the license of the behavior analyst," and supervision follows the BACB’s policy (Rule 9). For a BCBA licensed in another state, the statute’s exemption list (§ 73-75-5: licensed psychologists, other licensed professionals within scope, supervised technicians, family members, trainees, school employees) does not include behavior analysts licensed elsewhere, and the Board’s rules contain no telehealth provision, so plan on a Mississippi license before treating a Mississippi patient in person or by telehealth. The route is licensure by reciprocity (Rule 3.4), which still requires meeting the Rule 3.1 and 3.2 requirements; a temporary license exists only for applicants awaiting exam scores or the next oral exam, restricts practice to Mississippi and requires supervision. The autism mandate ties into this: a "licensed behavior analyst" in § 83-9-26 is one licensed under § 73-75-13.[9][10][11][12][13][14]
For state-regulated plans, Miss. Code Ann. § 83-9-351 says "All health insurance and employee benefit plans in this state must provide coverage for telemedicine services to the same extent that the services would be covered if they were provided through in-person consultation," with cost sharing no higher than in person. Telemedicine other than remote monitoring and store-and-forward "must be 'real-time' audio visual capable," and the claim carries the procedure code "with the appropriate modifier indicating interactive communication was used." The section was set to lapse on July 1, 2025; SB 2415 (2025), as sent to the Governor, moves the repeal date to July 1, 2028. Self-funded employer plans are covered only to the extent federal law permits.[9][10][11][12][13][14]
Aetna publishes no ABA rate table; its office manual (6/26) treats rates as a contract term ("your direct Aetna rates will apply unless we specifically notify you otherwise") and says members cannot be charged more than the contracted rate. Mississippi’s prompt-pay law, Miss. Code Ann. § 83-9-5(1)(h), requires clean claims to be paid within 25 days of receipt of due written proof for electronic claims and 35 days for paper, with interest of 3% a month after that; a clean claim "requires no further information, adjustment or alteration by the provider." The public benchmark is Mississippi Medicaid’s fee schedule (July 2026 Mississippi Medicaid ASD fee schedule, per 15-minute unit: 97151 $34.18 (no PA), 97152 $41.74, 97153 $15.08, 97154 $9.42, 97155 and 97156 $24.35, 97157 and 97158 $12.17, 0362T $56.64, 0373T $41.49, ages 0–20).[6][16][22]
Aetna’s Health Care Professional Toolkit (6/26) publishes no claim filing deadline: the limit for initial, corrected and secondary claims is the one in your Aetna participation agreement, and claim disputes "Must be submitted within contractual timeframes." The toolkit defines a clean claim as one "received in a timely manner" with all required data, and says a clean claim "Doesn’t involve coordination of benefits," so secondary claims sit outside the clean-claim clock. It publishes no check-run or weekly cut-off schedule.[6][16][22]
Aetna’s ABA medical necessity guide (©2026) sets what a renewal must show: the plan records baseline levels of each target behavior by "frequency, rate, symptom intensity or duration, or other objective measures," with "quantifiable criteria for progress"; where target behaviors have improved, documentation of that improvement is included, and where they have not, documentation of "modification of the treatment, additional assessments that have been conducted, and/or there has been appropriate consultations from other staff or experts." "A member’s progress is to be evaluated every six months," and the guide relies on "Repeated measurement with standardized measures to assess progress." It does not require graphs and sets no data-recency window.[1]
The questions that decide whether a family can start with Aetna in Mississippi, and what they have to bring. Each maps onto something intake should ask on the first call.
No expiry on the diagnosis, but functional impairment must be shown on a standardized scale administered in the past 12 months.[1]
An appropriate provider: "licensed psychologist/psychiatrist, physician or other health care professional qualified to diagnose mental health conditions within their scope of practice." For fully insured Mississippi plans, § 83-9-26 defines diagnosis as performed "by a licensed psychologist or licensed physician."[1][7]
CPB 0648 names ADI-R, ADOS-2, CARS-2 and the Asperger Syndrome Diagnostic Scale; the ABA guide requires a standardized functional measure from the past 12 months (VABS-3, ABAS, VB-MAPP or ABLLS).[3][1]
Aetna’s ABA policies require precertification, not a physician referral. Aetna publishes no ABA order form or validity period, and its provider manual (6/26) says members "may access behavioral health care … through direct access to the behavioral health provider." A PCP referral matters only on plans that require referrals for specialist care; a clean claim then includes "a corresponding referral (whether in paper or electronic format), if required for the applicable claim." The manual names no ABA-specific referring-provider (box 17) requirement. Under § 83-9-26 the mandated treatment is care "prescribed or ordered" by a licensed physician or licensed psychologist, so keep that order on file for a fully insured Mississippi plan; the insurer may review the treatment plan every six months.[4][7][6]
Aetna’s ABA policies set no age cap; the guide’s age ranges are typical, not limiting. For fully insured Mississippi plans, § 83-9-26(5) lets ABA coverage stop at age 8 and 25 hours a week unless medical necessity for an extension is shown under an ongoing treatment plan; non-grandfathered individual and small-group plans and self-funded ERISA plans are outside the mandate.[1][7]
Ask the plan: Live benefits verification: establish fully insured vs. self-funded and the market segment, then the plan’s ABA age terms.
Aetna’s office manual (6/26) says Aetna Behavioral Health "offers telehealth services to all commercial fully insured members and to all commercial self-insured plan sponsors, unless those self-insured plan sponsors opt out," and providers must hold "the proper licensure based on state requirements." For state-regulated plans, Miss. Code Ann. § 83-9-351 says "All health insurance and employee benefit plans in this state must provide coverage for telemedicine services to the same extent that the services would be covered if they were provided through in-person consultation," with cost sharing no higher than in person. Telemedicine other than remote monitoring and store-and-forward "must be 'real-time' audio visual capable," and the claim carries the procedure code "with the appropriate modifier indicating interactive communication was used." The section was set to lapse on July 1, 2025; SB 2415 (2025), as sent to the Governor, moves the repeal date to July 1, 2028. Self-funded employer plans are covered only to the extent federal law permits. Aetna’s ABA telehealth code list was not available in a current document.[6][13][14]
Ask the plan: Availity or the precertification line on the card: ask which ABA codes, POS and modifier Aetna pays by telehealth on this plan.
Fully insured plans fall under the Mississippi Prior Authorization Reform Act (SB 2140, effective July 1, 2024). It applies to health insurance issuers, health benefit plans and private review agents, "with the exception of employee or employer self-insured health benefit plans" under ERISA. A non-urgent decision is due "no later than seven (7) calendar days after obtaining all necessary information," an urgent one "no later than forty-eight (48) hours after receiving all information needed." A missed deadline means the services are "automatically deemed authorized." An approval stays valid for the lesser of six months, the length of treatment set by the clinician, or the plan’s renewal (12 months for chronic-condition treatment). Self-funded employer (ERISA) plans follow 29 CFR 2560.503-1 instead: pre-service decisions "not later than 15 days after receipt of the claim," one 15-day extension, urgent care within 72 hours, and at least 180 days to appeal a denial. Aetna publishes no Mississippi-specific ABA turnaround.[15][18]
Ask the plan: At verification ask whether the plan is fully insured (Mississippi-regulated) or self-funded (ERISA).
Mississippi’s coordination-of-benefits regulation (19 Miss. Admin. Code Pt. 3, R. 7.01) lets insurers file coordination provisions but sets no order-of-benefits rule of its own, so the order for a child on two parents’ plans comes from the plan documents (ask about the birthday rule at verification). The same regulation says "other health plans" for coordination "shall not include … Medicaid," and Medicaid is payer of last resort (42 CFR 433.139), so this plan pays before Mississippi Medicaid or a MississippiCAN plan. TRICARE pays after this plan (10 U.S.C. 1079(i)(1)); CHAMPVA is the last payer (38 CFR 17.270).[17][19][20][21]
Ask the plan: Ask Aetna at verification for the member’s coordination-of-benefits order and record every other coverage the child has.
Coverage decides whether Aetna in Mississippi 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.
Aetna’s Network Participation Criteria (5/26) require "A minimum of one hour of face-to-face supervision" of an unlicensed or noncertified paraprofessional by a BCBA or licensed psychologist "for each 10 hours of applied behavior analysis," plus the supervisor "onsite with the child at least one hour a month," and "All BCBAs, BCaBAs and paraprofessionals must meet state requirements." In Mississippi that means a licensed behavior analyst and Board-registered RBTs; § 83-9-26 requires services "under the supervision or direction of a licensed behavior analyst or licensed psychologist."[5][12][7]
Aetna publishes no daily cap; typical intensities are 10–25 hours a week (comprehensive) and 1–20 (focused), not limits. For fully insured Mississippi plans the mandate allows a 25-hour weekly ABA limit and 10 hours of licensed behavior analyst time, extendable on medical necessity.[1][7]
Aetna’s guide is setting-neutral for outpatient ABA and expects coordination with the school; § 83-9-26(7) does not require insurers to cover services schools must provide under an IEP, IFSP or IDEA.[1][7]
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 in scope. Mississippi licenses behavior analysts, so the billing clinician is a Mississippi LBA (or licensed psychologist).[1][10]
Not addressed in Aetna’s ABA medical necessity guide, CPB 0554 or the precertification list. The medical necessity guide and the provider manual also say nothing about ABA at the same time as speech or occupational therapy.[1][2][6]
Ask the plan: Aetna provider services or your participation agreement: ask whether 97153 and 97155 may be billed for the same time.
Aetna’s guide sets treatment-plan content, not who signs session notes or when.[1]
Ask the plan: Your Aetna participation agreement and the Aetna Behavioral Health documentation standards.
No. Aetna’s ABA medical necessity guide asks for objective baseline measures, quantifiable progress criteria, standardized re-measurement and a six-monthly progress evaluation, with treatment changes documented where there is no improvement, but it does not require graphs or set a data-recency window.
Aetna’s provider toolkit publishes no filing limit; the participation agreement sets it for initial, corrected and secondary claims, and a claim involving coordination of benefits is not a "clean claim." No check-run schedule is published.
Yes, for ASD under its national medical necessity guide, with Mississippi’s § 83-9-26 mandate layered on fully insured large-group and grandfathered plans.
Yes: § 83-9-26 lets fully insured plans stop ABA after age 8 and limit it to 25 hours a week, but coverage may be extended when medical necessity is shown under an ongoing treatment plan.
Yes. 97151 is on Aetna’s behavioral health precertification list with the other ABA codes.
Yes in practice: Mississippi licenses behavior analysts, and Aetna requires state requirements to be met and ABA billed by a licensed behavior analyst where the state licenses them.
For fully insured plans, the Prior Authorization Reform Act sets 7 calendar days after all necessary information (48 hours if urgent), or the request is deemed authorized. Self-funded plans follow ERISA’s 15-day rule.
Payer policies change frequently and vary by plan, state, and funding type. This guide was compiled from the sources above and last reviewed October 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.
Carelu collects all of this automatically.
Every ID, document, and detail this payer requires — gathered conversationally the moment a family reaches out, with insurance verified before your team touches the file.
Get a Demo