AHCCCS — the Arizona Health Care Cost Containment System — covers Behavior Analysis Services under Medical Policy Manual chapter AMPM 320-S, and it is one of the friendliest coverage baselines in our directory: no autism diagnosis is strictly required, and the state policy itself imposes no prior-authorization rules. But Arizona is a two-front-door state, and routing the family correctly is the first intake job: most members get ABA through one of six AHCCCS Complete Care (ACC) managed care plans, while ALTCS-eligible members with developmental disabilities get it through DES/DDD, which runs two statewide DDD Health Plans — Mercy Care DD and UnitedHealthcare Community Plan DD. Ask "ACC plan or DDD?" before anything else, because the payer, portal, and authorization pathway all hang on the answer.
AMPM 320-S applies across every AHCCCS delivery system — ACC, ALTCS, DES/DDD, DCS/CMDP, the RBHA contracts, and fee-for-service tribal programs — but the operational path splits in two. Most children get ABA through their ACC plan: Arizona Complete Health-Complete Care Plan, Banner-University Family Care, Blue Cross Blue Shield of Arizona Health Choice, Mercy Care, Molina Healthcare, or UnitedHealthcare Community Plan (Care1st no longer exists — it merged into Arizona Complete Health, with northern-county members transferred in 2024). Children who are ALTCS-eligible through the Division of Developmental Disabilities — autism is a DDD qualifying-condition category — instead get physical and behavioral health including ABA through one of two statewide DDD Health Plans, Mercy Care DD or UHCCP DD. Over age 3, ALTCS approval is the gate to DDD-funded services. The intake question that routes everything: which card does the family hold, an ACC plan card or a DDD Health Plan card?[1][3][5]
AMPM 320-S states that Behavior Analysis Services are a covered benefit "for individuals with Autism Spectrum Disorder (ASD) and/or other diagnoses as justified by medical necessity" — Arizona is one of the states that does not strictly require an autism diagnosis for ABA. Services must be prescribed or recommended by a qualified Behavioral Health Professional based on assessment (the policy lists example instruments like the PDDBI, Brigance, and Vineland), and progress reports are required at minimum every 6 months with specified components. The state policy sets no prior-authorization rules of its own — PA is delegated to the contractors, and the two largest verified examples both skip PA on assessment: Mercy Care ("You don't need PA for adaptive behavior assessments: CPT codes 97151 and 97152") and UHC/Optum ("All ABA services require prior authorization except 97151 and 97152"). Treatment codes do require PA at those plans, on their own forms and cadences — see the per-plan guides. For the three plans with no published ABA policy (Banner, Health Choice, Molina), verify the current PA rules in the portal before quoting a start date.[1][14][15]
AHCCCS converted the ABA codes from by-report to fixed rates effective November 1, 2023, tiered by rendering credential via modifiers: HM = below bachelor's (BT/RBT level), HN = bachelor's (BCaBA), HO = master's (BCBA), HP = doctoral (BCBA-D). Per 15-minute unit: 97151 assessment pays $30.06 / $35.78 / $44.73 at the HN/HO/HP tiers; 97153 direct treatment pays $17.91 / $21.32 / $23.69 (HM/HN/HO-HP); 97155 protocol modification pays $25.05 / $29.82 / $37.28. Home delivery (POS 12) pays roughly a 10% premium on every code — 97153 at home runs $19.96–$26.43. Two traps: the 2023 rate notice did not set a rate for 97156 (family training) — check the AHCCCS physician fee schedule code lookup directly — and the 9715x codes are not on the Behavioral Health Outpatient fee schedule at all; they live on the physician fee schedule. Practices that look up "behavioral health rates" find nothing and assume ABA is unpriced — it isn't.[2][16][17]
Arizona ABA is mid-upheaval, and intake teams should track two live threads. First, AHCCCS is running a spending-driven ABA reform: proposed AMPM 320-S revisions previewed at April 15–16, 2026 webinars would make state licensure plus fingerprint clearance conditions of AHCCCS provider registration and change the PA process. As of this review (8/1/2026), the proposal has moved to AHCCCS's public comment portal (searchable as "AMPM Policy 320-S – Behavior Analysis Services"), but no adopted rule text, revised 320-S PDF, or finalized effective date has been published on azahcccs.gov — the two most recent 2026 AMPM revision transmittals (3/26/2026, 6/19/2026) still don't carry the licensure/fingerprint language, so today's rules still govern. Second, in March 2026 Mercy Care, Arizona Complete Health, and UnitedHealthcare each terminated network contracts with Action Behavior Centers and/or Centria — roughly 1,000 children lost in-network ABA at once, and 11 families sued AHCCCS to halt the terminations. For providers still in network, displaced families are actively seeking new placements: staff intake for that volume, and verify network status on every inbound rather than assuming last year's directory.[4][6]
AMPM 320-S never says "RBT." A Behavior Technician is "a paraprofessional credentialed by a nationally recognized Behavior Analyst certification board or as specified in A.A.C. R9-10-101(39)" — meaning either a nationally certified tech (the RBT pathway) or an unlicensed Behavioral Health Technician working at a licensed health care institution under Behavioral Health Professional oversight. There is no state RBT registry; the Arizona-licensed Behavior Analyst (A.R.S. § 32-2091, Board of Psychologist Examiners) is responsible for all clinical direction and supervision, for training technicians, and for their compliance with the policy — and because 320-S sets no numeric supervision percentage of its own, the BACB's floor is the binding number for RBT-credentialed staff: 5% of monthly service hours, including two face-to-face contacts. ADHS outpatient-treatment-center rules (R9-10-1011) add that personnel providing behavioral health services must be at least 18, and if you staff the RBT pathway, the BACB baseline travels with it: a criminal background check plus an abuse-registry check, both completed within 180 days before the certification application, and — from January 1, 2026 — the new 40-hour curriculum (delivered over 5–180 days by trained BCBAs/BCaBAs), an updated competency assessment, and a 2-year recertification cycle.[1][13][10][7][8][9][11][12]
Now the part Arizona owners most often get backwards: fingerprint clearance cards. AHCCCS enrollment screening itself barely touches your staff — per PEP-902, the fingerprint-based criminal background check (run exclusively through Arizona DPS; FBI checks and out-of-state cards are not accepted) applies to "high-risk" provider types like 77 Behavioral Health Outpatient Clinic and IC Integrated Clinic, and only to individual high-risk providers, 5%+ direct or indirect owners, and the Directors/Executive Directors/CEOs/Presidents on the Corporation Commission listing; employees below that line are expressly exempt. But front-line staff need DPS cards anyway — the trigger is just elsewhere. Under A.R.S. § 36-425.03, all personnel, volunteers included, of a children's behavioral health program (behavioral health services to patients under 18 at an ADHS-licensed facility) must hold a valid fingerprint clearance card or apply within 7 working days of starting, and must certify on notarized forms that they are not awaiting trial on or convicted of the offenses listed in A.R.S. § 41-1758.03. Licensed behavior analysts carry their own card requirement as a condition of licensure (A.R.S. § 32-2091.02, effective January 1, 2022) — and the proposed 2026 AMPM rewrite would push licensure-plus-fingerprint into AHCCCS registration itself.[1][13][10][7][8][9][11][12]
The DDD side of the dual path layers on the heaviest screening. Qualified Vendors must hold Level One fingerprint clearance cards (A.R.S. § 41-1758.07) for all employee types except immediate relatives, add staff to the roster within 30 days of hire, and the OLCR tracking system re-validates every card against DPS every 24 hours — an expired card surfaces the next day, not at revalidation. DDD also screens staff against the APS Registry automatically every 24 hours, requires DCS Central Registry (child abuse/neglect) checks under A.R.S. § 8-804 for anyone providing direct service to children — with a Direct Service Position Form (DDD-1727A) completed before service pending results — and mandates monthly LEIE and SAM exclusion searches for all employees, contractors, and subcontractor staff, with results retained 5 years. New direct-care workers get 90 days to complete CPR, First Aid, and Article 9 training and cannot work alone with members until they do. Two gaps to confirm directly: AMPM 320-S is silent on TB tests or health screening for ABA staff (any such duty flows from the R9-10 article your ADHS license class sits under), and the ACC plans publish no staff screening beyond the state baseline — Mercy Care defers clinical standards to AHCCCS policy — so confirm plan-specific credentialing paperwork at contracting.[1][13][10][7][8][9][11][12]
The questions that decide whether a family can start with AHCCCS (Arizona Medicaid), and what they have to bring. Each maps onto something intake should ask on the first call.
AMPM 320-S sets no age bound of its own. Behavior Analysis Services are covered "for individuals with Autism Spectrum Disorder (ASD) and/or other diagnoses as justified by medical necessity," and the policy applies across ACC, ALTCS E/PD, DCS/CMDP, DES/DDD, the RBHA contracts and fee-for-service programs without an age criterion. In practice children reach the benefit through EPSDT, and nothing in the policy text excludes adults — screen on medical necessity, not birthday.[1]
None at the state level. AMPM 320-S imposes no recency clock on the diagnostic evaluation — and no autism diagnosis at all is strictly required. What must be current is the assessment: services are "prescribed or recommended in specific dosages, frequency, intensity, and duration by a qualified BHP as the result of an assessment of the member." Plan-level overlays can be stricter, so check the per-plan guide before telling a family an old evaluation still counts.[1]
AMPM 320-S gates on who recommends ABA, not on who diagnoses: services must be "prescribed or recommended... by a qualified BHP." A Behavioral Health Professional is defined as an individual licensed under A.R.S. Title 32, Chapter 33 whose scope allows independent behavioral health practice (or practice under direct supervision, except a licensed substance abuse technician); a psychiatrist (A.R.S. § 36-501); a psychologist (A.R.S. § 32-2061); a physician; a Behavior Analyst (A.R.S. § 32-2091); a registered nurse practitioner licensed as an adult psychiatric and mental health nurse; or a registered nurse with psychiatric-mental health certification or one year of behavioral health experience.[1]
No single instrument is mandated. "Behavior Analysis Services shall be based upon assessment(s) that include Standardized and/or Non-standardized instruments through both direct and indirect methods." Standardized examples named in the policy: the Pervasive Developmental Disabilities Behavior Inventory, the Brigance Inventory of Early Development and the Vineland Adaptive Behavior Scales. Non-standardized examples: curriculum-referenced assessments and stimulus preference assessment procedures.[1]
A prescription or recommendation from a qualified Behavioral Health Professional, based on an assessment of the member, is the referral — AMPM 320-S requires nothing else and sets no prior-authorization rules of its own, leaving PA to the Contractors. The two largest plans both skip PA on the assessment codes: Mercy Care states no PA is needed for 97151 and 97152, and Optum's Arizona orientation states "All ABA services require prior authorization except 97151 and 97152."[1][15][14]
Fee-for-service (AIHP/tribal and other FFS members): since January 1, 2026, 42 CFR 440.230(e) requires state FFS decisions "in no case later than 7 calendar days after receiving the request" for standard and 72 hours for expedited (standard extendable up to 14 calendar days). Health plans: AHCCCS’s own CY2025 prior-authorization metrics report (March 2026) says that "Beginning January 1, 2026" the CMS rule requires Medicaid managed care plans to decide within "7 calendar days for standard requests (non-urgent)" and "72 hours for expedited requests (urgent)"; the federal regulation ties the 7-day ceiling to rating periods starting on or after January 1, 2026. AHCCCS’s contractor policy ACOM 414 (rev. March 2025) still reads "no later than 14 calendar days from receipt of the request for the service, regardless of whether the 14th day falls on a weekend", 72 hours expedited, each extendable up to 14 more calendar days. Expect 7 and confirm with the plan; individual plan manuals still vary (see each plan). No ABA-specific decision clock or reauthorization lead time is published; AMPM 320-S requires progress reports at least every six months, which is what the reauth is built from.[18][19][20][21][1]
"AHCCCS is the payer of last resort unless specifically prohibited by state or federal law." AHCCCS policy (ACOM 434) makes the plan payer of last resort — bill the commercial plan first — but separates its authorization from the other insurer’s: "A denial of the service request by a third-party is not to be used as a basis for the Contractor's determination of medical necessity" (the plan reviews on its own criteria), and "When a third-party has approved a service request as medically necessary, the Contractor shall not apply a secondary Prior Authorization (PA)." Plans pay first and recover later for preventive pediatric/EPSDT services (the ACOM 434 list for children under 21 includes "Therapies, and Behavioral Health Exams") and absent-parent support cases. In fee-for-service, PA is not required when "The member has Medicare, third party liability (TPL), or commercial insurance coverage and the services are covered by Medicare, TPL, or commercial insurance"; if the other insurer denies, "the provider must follow the payer's appeal process and exhaust all remedies before AHCCCS can consider the covered service", attaching the final appeal decision and the EOB/RA. AHCCCS pays up to the difference between its allowed amount and the primary payment and does not separately reimburse copays, deductibles or coinsurance. Under federal rules TRICARE pays before Medicaid, and CHAMPVA pays first when the child is also Medicaid-eligible.[22][23][24][25][26]
AMPM 320-S permits telehealth delivery but does not price it: the individualized treatment plan must "identify the modality by which the service will be delivered (whether in person or via telehealth, or in-group or individual setting, or combination thereof)." Which 9715x codes are actually payable remotely, and with which place-of-service code or modifier, lives in the AHCCCS telehealth code set and the Behavioral Health Services Billing Matrix, neither of which we could retrieve at this review — azahcccs.gov returns 403 to automated fetching.[1]
Blocked on: The AHCCCS Telehealth code set and the Behavioral Health Services Billing Matrix on azahcccs.gov (both blocked to automated retrieval at this review), or the member's Contractor.
Coverage decides whether AHCCCS (Arizona Medicaid) 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.
A duty with no number attached. "Behavior Analysis Services shall be directed and overseen by Behavior Analysts and supported, where applicable, by Behavior Analysis Trainees and/or Behavior Technicians." The Behavior Analyst "is responsible for all aspects of clinical direction, supervision, and provider-level case management," for training Trainees and Technicians, for ensuring that "the extent, kind, and quality" of what they deliver matches their training and experience, and for their compliance with the policy and A.R.S. § 32-2091. A Behavior Analysis Trainee needs "direct and ongoing supervision consistent with the standards set by a nationally recognized Behavior Analyst certification board." AMPM 320-S publishes no supervision percentage and no caseload cap, so for RBT-credentialed staff the BACB floor is the operative number.[1]
The claim line has to say who actually delivered the service. AHCCCS pays credential-tiered rates through modifiers — HM below bachelor's (technician level), HN bachelor's, HO master's, HP doctoral — and AMPM 320-S points to the Behavioral Health Services Billing Matrix for "modifiers for Behavior Analysis Trainee billing." Whose NPI goes in the rendering field is set per Contractor: UnitedHealthcare Community Plan, for instance, requires the rendering provider's 10-digit NPI in box 24J, "must be an active AHCCCS registered provider (The rendering provider is the BCBA/Licensed Clinician)."[1][2][14]
AMPM 320-S does not address whether 97153 and 97155 may be billed for the same clock time. The policy routes every coding question elsewhere: "Refer to the Behavioral Health Services Billing Matrix and Medical Coding Resources on the AHCCCS website for more information regarding required coding information, including covered settings, modifiers for Behavior Analysis Trainee billing, or other billing/coding information."[1]
Blocked on: The AHCCCS Behavioral Health Services Billing Matrix and Medical Coding Resources (azahcccs.gov blocked automated retrieval at this review), and the Contractor's own reimbursement policy.
No per-day unit ceiling appears in AMPM 320-S; the policy sets clinical content, not claim edits, and defers unit and coding questions to the Behavioral Health Services Billing Matrix. Dosage is set case by case — services are prescribed "in specific dosages, frequency, intensity, and duration" by the recommending BHP — so the binding ceiling in practice is the Contractor's authorization.[1]
Blocked on: The AHCCCS Behavioral Health Services Billing Matrix, and the member's Contractor for authorized units.
AMPM 320-S sets a reporting cadence, not a signature rule. Progress reports are required "at minimum, every six months" and must include member identification; background information (family dynamics, school placement, cultural considerations, prenatal and/or developmental history, medical history, sensory, dietary and adaptive needs, sleep patterns, medications); assessment findings; outcomes (measurable objectives, progress toward goals, clinical recommendations, treatment dosage, family role and outcomes); and care coordination (transition statement and individualized discharge criteria). Who signs a session note, and within what window, is not stated.[1]
Blocked on: The Contractor's provider manual and the AHCCCS AMPM documentation chapters; ADHS licensure rules (A.A.C. R9-10) for the health care institution's own record standards.
AMPM 320-S requires the treatment plan to "specify the setting(s) in which services will be delivered" but publishes no payable-setting list, pointing instead to the Behavioral Health Services Billing Matrix "regarding required coding information, including covered settings." What is documented at the rate level is that setting changes the money: the November 2023 fixed-rate notice pays home delivery (POS 12) roughly 10% above the clinic rate on every ABA code.[1][2]
Blocked on: The AHCCCS Behavioral Health Services Billing Matrix for covered settings, and the Contractor for school- and community-based delivery.
Yes — under AMPM 320-S, for members with autism spectrum disorder and/or other diagnoses as justified by medical necessity. Coverage runs through the member's ACC plan, or through a DDD Health Plan (Mercy Care DD or UHCCP DD) for ALTCS-DD members.
No — AMPM 320-S explicitly covers "other diagnoses as justified by medical necessity," and Optum's Arizona orientation states verbatim that an ASD diagnosis is not required for AHCCCS members. A qualified Behavioral Health Professional must still recommend the service based on assessment.
Fixed, credential-tiered rates since 11/1/2023: 97153 pays $17.91 (HM) / $21.32 (HN) / $23.69 (HO/HP) per 15-minute unit, with home delivery about 10% higher. The codes live on the physician fee schedule, not the behavioral-health outpatient one, and 97156 wasn't in the 2023 rate notice — look it up directly.
Six ACC plans — Arizona Complete Health, Banner-University Family Care, Blue Cross Blue Shield of Arizona Health Choice, Mercy Care, Molina, and UnitedHealthcare Community Plan — plus the two statewide DDD Health Plans (Mercy Care DD and UHCCP DD) for ALTCS-DD members. Prior-auth mechanics are plan-specific.
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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