UnitedHealthcare / Optum ABA coverage in Florida: the intake guide.

State-licensed and scope-qualified: “a valid diagnosis of ASD (or other applicable diagnosis as required by governing laws) must be issued by a state licensed physician, psychologist, or other state licensed clinician qualified to make such diagnosis according to the diagnostic criteria based on the DSM-5-TR.” The diagnosing clinician — not the ABA provider — confirms and documents both the diagnosis and the severity level. Note the parenthetical: “or other applicable diagnosis as required by governing laws” is what carries Florida’s Down syndrome path, since Optum’s Florida State Mandates entry covers ABA “for the treatment of Down Syndrome” on mid- and large-group fully-insured plans.^[1][2]

Optum publishes the fullest instrument taxonomy of the national carriers, in two stages. For the diagnosis, “the DSM-5 diagnosis and severity level are confirmed and documented by the diagnosing clinician using at least one clinically validated tool (not an all-inclusive list),” across first-level screening tools (ABC, CHAT/M-CHAT, CSBS-DP-IT-Checklist, ASQ, AQ, CAST), second-level screening tools (CARS/CARS-2, RITA-T, STAT) and formal diagnostic tools (ADI-R, ADOS/ADOS-2, DISCO). For treatment intensity, the plan must be set from baseline measurement “with the use of at least one of the following validated measurement tools”: ATEC, VB-MAPP, ABLLS/ABLLS-R, AFLS, PEAK, SSIS, RBS-R, SRS, Vineland (VABS) or CFQL-2 — with the caveat that “measurement tools should be individualized and will not be the same for all individuals or programs.” The ABA provider separately completes a standard or functional behavioral assessment, caregiver interviews, direct observation, record review, a baseline skills assessment and norm-referenced instruments against age-matched peers.^[1]

Three codes, after an attestation. Optum’s Telehealth Billing guide (updated September 2025) is explicit for commercial plans: “For ABA services, telehealth is only allowed for these 3 CPT codes: 97155, 97156 or 97157” — virtual supervision of technicians and family training — so technician-delivered 97153 is not payable by telehealth. The provider must first be “an approved Optum virtual visits provider who has attested” (the virtual-visits attestation on Provider Express) and must tell the ABA Care Advocate at authorization. Bill the in-person code with the member’s location as the place of service: POS 10 when the member is at home, POS 02 anywhere else (the older ABA CPT FAQ says POS 02; the 2025 guide requires one of the two on every behavioral-health telehealth claim, and POS 11 or a telehealth modifier alone is not paid). Optum’s criteria add that telehealth is “not intended to supplant in-person service.” Because only 97155, 97156 and 97157 are allowed by telehealth on commercial plans, the 97151 assessment and 97152 supporting assessment must be done in person, while remote BCBA direction of the technician (97155) is allowed.^[9][8][1]

Optum’s ABA Supplemental Clinical Criteria publish no age limit — coverage turns on a valid ASD diagnosis and medical necessity. Two age-bearing layers sit above it in Florida. The Geller Act: under 18, or 18 and older and still in high school, with the developmental-disability diagnosis made at 8 years of age or younger, for fully-insured large-group and state-employee plans only. And Optum’s own Florida entry in its ABA State Mandates criteria, which reaches “mid and large group fully insured (does not include individual and small)” plans. Federal parity limits how hard age terms can be enforced against covered group plans.^[1][2][3]

Ask the plan: Plan funding type and group size before anything else — they decide whether the mandate layer applies at all.

No referral requirement is published; the gate is authorization. “Prior authorization is required for ABA (unless otherwise specified or mandated by contract or law),” run as Optum’s two-step structure on Provider Express — assessment authorized first, then treatment — with continued-service reviews every 4–6 months. Whether a specific plan also requires a PCP referral is a benefit-design question. Florida's mandate adds a physician order on the plans it reaches (fully insured large-group and state-employee plans, with § 641.31098 for HMOs). Coverage "shall be limited to treatment that is prescribed by the insured's treating physician in accordance with a treatment plan." That plan "shall include ... a diagnosis, the proposed treatment by type, the frequency and duration of treatment, the anticipated outcomes stated as goals, the frequency with which the treatment plan will be updated, and the signature of the treating physician" (§ 627.6686(4)(a), (7)). The statute names a physician, not a psychologist, and sets no validity period beyond the update frequency written into the plan itself. In practice the order is the treating physician's signature on the treatment plan itself. Individual, small-group and self-funded plans are outside the mandate, so for them the order is a plan-document question.^[1][14]

Ask the plan: A live benefits verification plus Provider Express — confirm whether the plan layers a referral requirement on top of the two-step authorization.

No Florida statute sets the decision deadline: § 627.42392, Fla. Stat. governs the prior authorization form, not the clock. The federal claims rule sets the floor for employer plans, whether insured or self-funded, and for non-grandfathered individual and marketplace plans: a pre-service decision “not later than 15 days after receipt of the claim,” with one 15-day extension, and urgent care “not later than 72 hours after receipt” (29 CFR 2560.503-1(f)(2); 45 CFR 147.136). A plan may be faster.^[15][16][17]

Ask the plan: Optum Behavioral Health (number on the member ID card): the plan’s standard and urgent turnaround for ABA requests, whether the clock starts at receipt or at a complete request, and how far ahead of expiry a reauthorization must be filed. Also ask whether the plan is grandfathered, since grandfathered plans are outside 45 CFR 147.136.

For a child covered on both parents’ group plans, Florida’s COB statute sets the order: “The benefits of the policy or plan of the parent whose birthday, excluding year of birth, falls earlier in a year are determined before” the other parent’s. For divorced or separated parents, the order is the custodial parent’s plan, then the custodial parent’s spouse’s plan, then the non-custodial parent’s, unless a court decree assigns health costs to one parent. The statute reaches group policies and group plans issued in Florida; whether a self-funded employer plan follows it or its own plan document’s COB clause is a question for that plan. Public coverage pays after this plan. Medicaid is the payer of last resort (Rule 59G-1.052). TRICARE “pays after all other health insurance, except for” Medicaid. CHAMPVA “is always the secondary payer, except to Medicaid.” If the other plan denies because its rules were not followed, including its prior authorization, TRICARE “may also deny the claim.” So get this plan’s authorization even when a public program is secondary.^{[18][19][20][21]}

Ask the plan: Ask the family for both parents’ cards and birth dates, and ask the employer or HR whether each plan is fully insured (Florida statute order applies) or self-funded (the plan document’s COB clause applies).

Not published. The Supplemental Clinical Criteria require a valid DSM-5-TR ASD diagnosis confirmed with at least one clinically validated tool, but set no maximum age on that diagnosis and no re-diagnosis interval. What Optum does clock is the review cycle — continued-service reviews every 4–6 months — and the documentation standard that assessment instruments be norm-referenced against age-matched peers and used to “assess developmental gains as a result of interventions,” which implies current rather than historical scores without naming a window.^[1]

Ask the plan: Optum Behavioral Health provider services and Provider Express — ask whether an evaluation older than a given date triggers re-evaluation before an ABA authorization.

No percentage or caseload cap — the commercial reimbursement policy refers providers to the ABA Coding Coalition for supervision requirements. What Optum polices is the boundary: “CPT codes 97153 and 97155 may not be billed for technician training,” including training a technician new to the organisation on a client’s programming or on reassessment-driven goal changes; and 97155 “should be reported only for services where the QHP is either engaged directly with the patient or is directing a technician in implementing a modified protocol with the patient” — treatment planning is an indirect service and is not separately reimbursable. The clinical criteria add the credential chain: technicians work “under the applicable supervision of a BCBA or licensed behavioral health clinician” and “should be registered behavior technicians (RBT) or another appropriately certified behavior technician as allowable by state mandate,” with an explicit warning that a parent serving as their own child’s RBT creates an ethics conflict for the supervising BCBA.^[6][1]

Yes, with a single-provider exclusion. “Can I report 97153 or 97154 with 97155 concurrently? A. Yes, as long as the criteria in the descriptors of both codes are met. A single QHP may not report 97153 or 97154 with 97155 concurrently.” So the concurrency has to be two people — a technician on 97153 and an analyst on 97155 directing them with the patient present. Separately, 97155 and 97156 may both pay on the same date of service only if the services are separate, distinct and clearly documented; “a single provider can’t bill for both simultaneously (e.g., in the same 15-minute block).”^[6]

Optum publishes its own per-day table on top of CMS MUEs — maximum frequency per day: 97151 32 units (8 hrs), 97152 16 (4 hrs), 97153 32 (8 hrs), 97154 18 (4.5 hrs), 97155 24 (6 hrs), 97156 16 (4 hrs), 97157 16 (4 hrs), 97158 16 (4 hrs), 0362T 16 (4 hrs), 0373T 32 (8 hrs). MUEs otherwise apply per CMS guidance, and billing above 32 units a day of 97153 “may be subject to non-reimbursement or recovery.” Time is counted on the CMS 15-minute rule (1 unit at 8 minutes or more, 2 at 23 or more, and so on). The Geller Act’s $36,000-a-year and $200,000-lifetime ABA caps are dollar limits rather than unit limits, and are arguably unenforceable against parity-subject group plans.^[6][3]

“Provider signature is required on progress notes. Parent/guardian signatures are not required on progress notes” (Optum ABA CPT FAQ). Each daily session note records place of service, start and stop time, who rendered the service, the specific service, who attended and the interventions. Optum’s ABA documentation protocol (June 1, 2026) requires the “signature of the rendering provider” and “Legible identity of the rendering provider with credentials,” and “The date of signature must reflect the date the note is finalized” — a note signed after the date of service must follow late-entry rules and show the date it was signed. Same-date services must be “separate, distinct, and clearly documented in the progress notes,” or the claim may be denied.^[8][10][6]

One provider-level modifier per line, matching whoever actually rendered the service: HM = Registered Behavior Technician (less than bachelor’s level), HN = BCaBA (bachelor’s level), HO = BCBA or master’s-level licensed clinician, HP = BCBA-D or doctoral-level licensed clinician. A billable ABA-supervisor service is billed with the applicable CPT code plus HO. Stacking level modifiers is a denial risk: “billing multiple provider-level modifiers (HN, HM, HO, HP) on the same service line same service and same DOS is not appropriate and may result in claim denial.” Indirect work has no code of its own — it is bundled into the direct-service code. Florida adds no licensure layer, so BACB certification (or the legacy FL-CBA, or Chapter 490/491 licensure) is the operative credential.^[6][3]

The commercial ABA reimbursement policy sets codes, modifiers, units and concurrency but no place-of-service rule; the clinical criteria only require the place of service to appear on every daily progress note, and the treatment plan to be coordinated with the school and any IFSP/IEP. Florida is one of the states where Optum publishes a genuine state supplement, but it is a covered-condition rule rather than a setting rule: for Florida members on mid- and large-group fully-insured plans, “Applied Behavior Analysis (ABA) is covered for the treatment of Down Syndrome. Speech therapy, physical therapy, occupational therapy, and ABA must be covered to the same extent as the existing Florida autism mandate.” School: Optum’s clinical criteria exclude “services that are not ABA therapy, such as 1:1 aid delivered simultaneously during classroom instruction, or services covered under the Individuals with Disabilities Education Act (IDEA),” but “school ABA services do allow for coordination of services and would cover services such as teacher training, meetings with school personnel, and observations in the school setting.”^[1][2][6]

Ask the plan: UnitedHealthcare/Optum provider services and the member’s benefit document for whether school, community or group-home ABA is payable on that plan.