Payer Guide · UnitedHealthcare · Illinois

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

Last updated October 202622 primary sources

For an intake team in Illinois, a UnitedHealthcare card means three layers: Optum Behavioral Health’s national ABA criteria, Illinois’s autism mandate, and the plan’s funding type. UnitedHealthcare is not one of the HealthChoice Illinois Medicaid plans on HFS’s 2026 map, so a UHC card here is commercial (or Medicare).

Prior auth for the assessmentPlan-dependent
Optum’s national rule: the ABA Supplemental Clinical Criteria require prior authorization for ABA “unless otherwise specified or mandated by contract or law.” Illinois law since January 1, 2026: for fully insured policies, 215 ILCS 5/370c(w)(1) says “No policy shall require prior authorization for outpatient or partial hospitalization services for treatment of mental, emotional, or nervous disorders or conditions,” allowing concurrent review after a notification deadline of up to 2 business days, and 356z.14(f) says its treatment-plan rule does not supersede that prohibition. The statute does not name ABA; self-funded plans are outside it.[2][10][8]
Ask the plan: Optum Provider Express support: ask whether this Illinois plan is fully insured and, if so, whether Optum requires prior authorization or only notification for ABA since January 1, 2026.
Prior auth for treatmentPlan-dependent
Optum’s national rule: required, with continued-service review; the review interval is set per authorization. Illinois law since January 1, 2026: for fully insured policies, 215 ILCS 5/370c(w)(1) says “No policy shall require prior authorization for outpatient or partial hospitalization services for treatment of mental, emotional, or nervous disorders or conditions,” allowing concurrent review after a notification deadline of up to 2 business days, and 356z.14(f) says its treatment-plan rule does not supersede that prohibition. The statute does not name ABA; self-funded plans are outside it.[2][10]
Ask the plan: Optum Provider Express support: ask whether a fully insured Illinois plan needs prior authorization or notification plus concurrent review, and what review interval will be set.
Autism diagnosis required?
Yes: DSM-5-TR ASD confirmed by the diagnosing clinician with at least one clinically validated tool[2]
Covers ABA?Yes, for ASD, per Optum’s ABA Supplemental Clinical Criteria
State mandate215 ILCS 5/356z.14 (Illinois Insurance Code; P.A. 95-1005, plans issued or renewed after Dec. 12, 2008)
Mandate ageUnder 21 (“individuals under 21 years of age”)
Mandate caps$36,000 a year, adjusted annually for medical inflation by the Director of Insurance (current figure: ask the plan); no visit limits
Exempt from mandateSelf-funded ERISA employer plans (outside state insurance law)
LicensureYes: IDFPR licenses Behavior Analysts and Assistant Behavior Analysts (licensing began Jan. 15, 2025)
Fee scheduleNot public — Optum pays up to the “Fee Maximum” in your agreement, by credential level (HM/HN/HO/HP modifiers)

The national policy, applied in Illinois

UnitedHealthcare administers ABA through Optum Behavioral Health under the ABA Supplemental Clinical Criteria (BH803ABASCC; annual review August 2025, interim review April 2026): prior authorization for ABA, direct case supervision of 1–2 hours per 10 hours of direct treatment, and continued-service review that looks hard at use below 80% of authorized hours over two weeks. Optum’s ABA State Mandates supplement (July 2026) has entries for Arizona, California, Connecticut, Florida, Indiana, Kansas (Medicaid), Kentucky, Maryland, Massachusetts, New Jersey (Medicaid), New York (Medicaid), Ohio, Pennsylvania and Virginia; Illinois is not among them, so no Illinois-specific criteria modify the commercial policy. HFS’s 2026 managed care map lists no UnitedHealthcare plan in HealthChoice Illinois.[2][3][7]

Reauthorization, claim filing and payment

Reauthorization: with each continued-treatment review Optum wants updated documentation showing progress “for each targeted symptom and behavior … including the same modes of measurement that were utilized for baseline measurement,” including “rate and percentage of mastered programs, rates of mastered targets, change scores for any outcome measures, updated standardized adaptive measures, and change scores for skills-based assessments,” movement from baseline on validated, norm-referenced measures, caregiver involvement, and an explanation of any use below 80% of authorized hours over two weeks. The criteria do not require graphs as such. Claim filing: Optum’s National Network Manual (effective Sept. 1, 2026) requires all claim information “no more than 90 calendar days from the date of service, or as allowed by state or federal law or the member’s specific benefit plan,” with corrections “within 90 days of initial claim receipt”; claims with all required information and any required authorization are generally paid “within 45 calendar days” after Optum receives them, “or as required by state and federal laws.” For fully insured Illinois policies the Insurance Code sets the payment clock: “All claims and indemnities payable under the terms of a policy of accident and health insurance shall be paid within 30 days following receipt by the insurer of due proof of loss,” with 9% annual interest after the 30th day, and the insurer must tell the insured or assignee within 30 days if documentation is missing (215 ILCS 5/357.9). Self-funded ERISA plans are outside it. No weekly submission cutoff or check-run day is published.[2][6][1]

The Illinois mandate: what we could verify

Illinois’s autism mandate is Section 356z.14 of the Illinois Insurance Code (215 ILCS 5/356z.14). Group and individual policies and managed care plans issued or renewed after December 12, 2008 “must provide individuals under 21 years of age coverage for the diagnosis of autism spectrum disorders and for the treatment of autism spectrum disorders.” Coverage “shall be subject to a maximum benefit of $36,000 per year but shall not be subject to any limits on the number of visits to a service provider,” and “The Director of Insurance shall, on an annual basis, adjust the maximum benefit for inflation” using the medical care CPI; we did not find the Department’s current adjusted figure, so get it from the plan. Cost sharing may apply only as it does to other medical services, and benefits “may not be subject to dollar limits, deductibles, copayments, or coinsurance provisions that are less favorable to the insured” than for physical illness. Treatment explicitly includes “applied behavior analysis,” prescribed, provided or ordered by a physician “or (B) a certified, registered, or licensed health care professional with expertise in treating effects of autism spectrum disorders when the care is determined to be medically necessary and ordered by a physician licensed to practice medicine in all its branches.” The diagnosis must be prescribed, performed or ordered by a physician licensed in all branches or “a licensed clinical psychologist with expertise in diagnosing autism spectrum disorders”; P.A. 104-561 adds a licensed speech-language pathologist with that expertise for children under 3, effective January 1, 2028. The insurer may ask for records showing medical necessity and progress, and a treatment plan (diagnosis, treatment by type, frequency, duration, goals, update schedule), but subsection (f) adds: “Nothing in this subsection supersedes the prohibition on prior authorization for mental health treatment under subsection (w) of Section 370c.” Medical-necessity decisions must be made the same way as for other illnesses, and an appeal challenge is reasonable only if the review includes a physician with current ASD treatment expertise. Subsection (e-5) bars denial “solely because of the location wherein the clinically appropriate services are provided.” The Department of Insurance has enforced that last point: Company Bulletin 2024-17 (December 4, 2024) reminds every company writing accident and health insurance and managed care plans that Public Act 102-0322, in effect since January 1, 2022, bars an insurer from denying “otherwise covered services … solely because of the location wherein the clinically appropriate services are provided,” and that for autism services “such as applied behavior analysis” sites “include non-school, non-home, or non-provider locations,” private or public. It adds that “An issuer cannot apply medical necessity criteria that contradict a statutory requirement,” that criteria for mental health conditions “including autism spectrum disorder, must be consistent with generally accepted standards of care, including with respect to setting or site of care” (215 ILCS 5/370c(h)-(i), (k)), and that members denied for medical necessity keep appeal rights under the Managed Care Reform and Patient Rights Act and the Health Carrier External Review Act. Separately, 370c(w), added by Public Act 104-0028 from January 1, 2026, says “No policy shall require prior authorization for outpatient or partial hospitalization services for treatment of mental, emotional, or nervous disorders or conditions” by licensed, certified or legally authorized providers; concurrent and retrospective review remain allowed, and a commercial insurer may require notice within “2 business days after the initiation of the covered person’s treatment,” with no concurrent review of services before that deadline. 370c(w) does not name ABA, and carriers still list ABA codes for authorization, so whether a fully insured plan may prior-authorize ABA in 2026 is a question to put to the plan and, if needed, the Department of Insurance. Like every state mandate, it reaches fully insured plans; self-funded employer plans answer to ERISA, and Evernorth’s Illinois addendum, for example, says it does “not apply with regard to Covered Services rendered to Participants covered under self-funded plans.”[8][9][10][11][12][23]

Licensure: does the BCBA need an Illinois license?

Illinois licenses behavior analysts. IDFPR lists two professions under the Behavior Analyst Licensing Act (225 ILCS 6), the Licensed Behavior Analyst and the Licensed Assistant Behavior Analyst, and says the Department “commenced licensing behavior analysts and assistant behavior analysts on January 15, 2025.” It gave applicants a grace period: IDFPR “will not begin enforcement actions for unlicensed practices provided by Behavior Analysts and Assistant Behavior Analysts until Monday, April 21, 2025,” so that date has passed and a BCBA practicing in Illinois now needs the Illinois license. A second deadline is still ahead. IDFPR quotes Section 150 of the Act: beginning 24 months after licensing began, no business may offer behavior analysis services “unless every member, partner, shareholder, director, officer, holder of any other ownership interest, agent, and employee who renders applied behavior analysis services holds a currently valid license,” and it reads that as: “By or before January 15, 2027 anyone who is not licensed as a behavior analyst or assistant behavior analyst … and who currently owns a business providing applied behavior analysis services must divest from the business.” The statute is blunter than IDFPR’s notice: Section 150 covers “every member, partner, shareholder, director, officer, holder of any other ownership interest, agent, and employee who renders applied behavior analysis services,” “Notwithstanding” the Section 20 exclusion for people implementing a plan under a licensed behavior analyst’s supervision, so ask IDFPR how it applies to RBT employees after January 15, 2027. The BACB’s licensure table lists Illinois (law enacted 2022) with IDFPR as the board. Out-of-state BCBAs and telehealth: no. Section 20 of the Act says an individual “shall not engage in the practice of applied behavior analysis unless licensed under this Act or covered by an exemption,” and its exemption list (family caregivers, staff implementing a plan under a licensed behavior analyst, listed licensed professions such as clinical psychologists, LCSWs, LCPCs, SLPs and OTs acting within their training, students and fellows, school-endorsed staff, QIDPs, DHS-designated providers, and people practicing on Medicaid when the Act took effect while working toward licensure) contains nothing for a behavior analyst licensed in another state. The Telehealth Act closes the remote route: “A health care professional treating a patient located in this State through telehealth services must be licensed or authorized to practice in Illinois” (225 ILCS 150/10). So a BCBA licensed elsewhere needs the Illinois license to treat or supervise a client located in Illinois, in person or by telehealth. For commercial credentialing this means the carrier will expect the Illinois license number as well as BACB certification. Optum’s ABA reimbursement policy notes that state regulatory requirements “may supplement, modify or supersede” its technician rules.[13][14][24][15][16][5]

What is UnitedHealthcare’s fee schedule for ABA?

UnitedHealthcare publishes no ABA rate table; Optum pays from the contract. Optum’s National Network Manual (effective Sept. 1, 2026) defines the “Fee Maximum” as the most a participating provider may be paid for a service. Optum’s commercial ABA Reimbursement Policy (2022RP501A) makes the credential level part of the claim line: HM for an RBT, HN for a BCaBA, HO for a master’s-level BCBA, HP for a doctoral-level BCBA-D. Ask Optum network management for your rate sheet. For a public benchmark, Illinois Medicaid’s ABS fee schedule pays 97153 at $13.00 per 15 minutes; commercial contracts are negotiated separately.[6][5][18]

Intake gates

The questions that decide whether a family can start with UnitedHealthcare / Optum in Illinois, and what they have to bring. Each maps onto something intake should ask on the first call.

Diagnosis recency

No expiry on the diagnosis; it must be confirmed with severity level using validated tools, and progress is measured from baseline with validated, norm-referenced tools at each review.[2]

Who may diagnose

A diagnosis “issued by a state licensed physician, psychologist, or other state licensed clinician qualified to make such diagnosis” under DSM-5-TR, with diagnosis and severity confirmed by the diagnosing clinician using at least one clinically validated tool. For fully insured Illinois plans, 356z.14 defines the diagnosis as tests or evaluations “prescribed, performed, or ordered by (A) a physician licensed to practice medicine in all its branches or (B) a licensed clinical psychologist with expertise in diagnosing autism spectrum disorders” (a licensed speech-language pathologist with that expertise for children under 3 is added from January 1, 2028 by P.A. 104-561).[8][2]

Diagnostic tools required

At least one clinically validated tool from a non-exhaustive list that includes ADI-R and ADOS-2; treatment intensity is set from baseline measures such as VB-MAPP, ABLLS-R or Vineland.[2]

Referral required?

No separate physician referral; the SCC require prior authorization. For fully insured Illinois plans, 215 ILCS 5/356z.14 covers ABA as treatment “ordered by a physician licensed to practice medicine in all its branches” when delivered by a certified, registered or licensed professional, so keep a physician order on file; the Department of Insurance has also told carriers they may not deny covered ABA “solely because of the location” of care (Company Bulletin 2024-17). Self-funded ERISA plans sit outside state insurance law.[2][12]

Telehealth

Optum’s Telehealth Billing guide (September 2025), commercial only: “For ABA services, telehealth is only allowed for these 3 CPT codes: 97155, 97156 or 97157.” Bill POS 02 or 10; Optum “will not reimburse for services billed with only telehealth modifiers” and no POS. The 97151 assessment and technician 97153 are not on the list. Illinois’s commercial telehealth statute could not be retrieved this run.[4]

Age limitPlan-dependent

The SCC carry no age criterion; the member’s benefit plan governs. For fully insured Illinois plans, 215 ILCS 5/356z.14 mandates autism coverage for “individuals under 21 years of age,” subject to a $36,000-a-year maximum that the Director of Insurance adjusts annually for medical inflation, with no visit limits; the plan may cover older members, and the current adjusted dollar figure should be confirmed with the plan. Self-funded ERISA plans are outside the statute.[2][8]

Ask the plan: Provider Express benefits check or the behavioral health number on the card: establish fully insured vs. self-funded ERISA first.

Prior-auth decision timePlan-dependent

Depends on how the plan is funded. Self-funded employer (ERISA) plans follow 29 CFR 2560.503-1: pre-service decisions “not later than 15 days after receipt of the claim,” one 15-day extension, urgent care within 72 hours. For fully insured Illinois plans, 215 ILCS 5/370c(w) (Public Act 104-0028, from January 1, 2026) bars prior authorization of outpatient mental health treatment and lets the insurer set a notification deadline of up to 2 business days after treatment starts, with no concurrent review of services before that deadline; Illinois’s general prior-authorization decision deadlines were not read this run. UnitedHealthcare/Optum publishes no Illinois-specific ABA turnaround or reauthorization lead time in the documents read.[17][11][10]

Ask the plan: At benefits verification ask whether the plan is fully insured (Illinois-regulated) or self-funded (ERISA), and what turnaround Optum expects.

Other insurance (who pays first)Plan-dependent

Illinois’s group coordination-of-benefits rule could not be retrieved this run, so the order between two parents’ plans is not stated here; ask the plan. What is certain is the order against public coverage: if the child also has Illinois Medicaid, UnitedHealthcare/Optum pays first. HFS is “by federal and State Law, the payer of last resort,” and claims must be adjudicated by all liable third parties before HFS considers them (42 CFR 433.139). TRICARE pays after this plan (10 U.S.C. 1079(i)(1)); CHAMPVA is the last payer (38 CFR 17.270).[19][20][21][22]

Ask the plan: Ask UnitedHealthcare/Optum at benefits verification for the member’s coordination-of-benefits order, and record every other coverage the child has.

Delivery & billing rules

Coverage decides whether UnitedHealthcare / Optum in Illinois 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.

Supervision

“Consistent with CASP standards of care, direct case supervision is required 1–2 hours for every 10 hours of direct treatment per week.” Optum does not recommend parents serving as their own child’s RBT. In Illinois the supervising behavior analyst also needs the IDFPR license.[2][13]

Daily limits / MUEs

No numeric cap. Requested hours must be justified by documented clinical need; at continued-service review, use of authorized hours below 80% over a two-week period must be explained.[2]

Place of service

Not covered: “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)”; school coordination is allowed. For fully insured Illinois plans, the Department of Insurance has told carriers they may not deny covered ABA “solely because of the location” of care (Company Bulletin 2024-17).[2][12]

Bill as provider

Every line carries the rendering credential: HM (RBT), HN (BCaBA), HO (master’s-level BCBA or licensed clinician), HP (doctoral-level), under Optum’s commercial ABA Reimbursement Policy.[5]

Concurrent billing (97153 + 97155)Ask the plan

Not addressed. The SCC define direct case supervision as happening during direct treatment but do not state the billing consequence.[2]

Ask the plan: Optum Provider Express National Network Manual and the participating-provider agreement, or a written coding determination from Optum.

Session-note signatureAsk the plan

Not addressed. The SCC set what must be documented for coverage, not who signs a session note or when.[2]

Ask the plan: Optum National Network Manual (documentation standards) and the participating-provider agreement.

What intake should collect for UnitedHealthcare / Optum in Illinois
Plan funding type — Fully insured (Illinois mandate applies) vs. self-funded ERISA (plan document governs).
Member ID + card photo — Enough to run a live benefits verification on Provider Express.
Diagnosis with a validated tool — DSM-5-TR ASD and severity level, confirmed with a validated tool (ADI-R, ADOS-2 and others).
Technician credentials — Optum’s HM line is billed for an RBT; bring RBT numbers for every technician.
Illinois license numbers — IDFPR license for each behavior analyst as well as BACB certification.
Download the free verification-call checklist (PDF)

Common questions

What is UnitedHealthcare’s (Optum’s) timely filing limit for ABA?

90 calendar days from the date of service under Optum’s National Network Manual, unless state law or the plan allows longer; clean claims are generally paid within 45 days, or faster where state law requires (30 days for fully insured Illinois policies under 215 ILCS 5/357.9).

Does UnitedHealthcare cover ABA therapy in Illinois?

Yes, under Optum’s national ABA criteria for ASD, with Illinois’s autism mandate layered on for fully insured plans.

Does Optum have Illinois-specific ABA criteria?

No. Optum’s ABA State Mandates supplement (July 2026) does not list Illinois.

Is UnitedHealthcare an Illinois Medicaid plan?

No. HFS’s 2026 map lists Aetna Better Health, Blue Cross Community Health Plans, CountyCare, Meridian, Molina and YouthCare.

Can ABA be delivered by telehealth with UnitedHealthcare in Illinois?

Optum’s commercial telehealth guide allows only 97155, 97156 and 97157, billed POS 02 or 10. The 97151 assessment and 97153 are not on that list.

Primary sources
  1. 215 ILCS 5/357.9 — Illinois Insurance Code: time of payment of claims (official text via witnessslips.ilga.gov mirror)
  2. Optum ABA Supplemental Clinical Criteria (BH803ABASCC; annual review 8/2025, interim review 4/2026)
  3. Optum — ABA State Mandates (BH 803ABA STM72026, eff. July 2026)
  4. Optum — Telehealth Billing Quick Reference Guide (updated September 2025)
  5. Optum — ABA Reimbursement Policy, Commercial (2022RP501A)
  6. Optum National Network Manual (BH02330, published July 1, 2026, effective Sept. 1, 2026)
  7. HFS — Medicaid Managed Care Program Map (January 1, 2026)
  8. 215 ILCS 5/356z.14 — Autism spectrum disorders (official ILCS text, General Assembly; read via its witnessslips.ilga.gov mirror, showing the text before and after P.A. 104-561)
  9. FindLaw (unofficial mirror, “last updated January 01, 2025”) — 215 ILCS 5/356z.14, read through r.jina.ai; matches the official text
  10. 215 ILCS 5/370c — Mental and emotional disorders (official ILCS text incl. subsection (w), eff. 1/1/2026; read via witnessslips.ilga.gov mirror)
  11. Public Act 104-0028 (HB 3019), eff. Jan. 1, 2026 — official text (read via witnessslips.ilga.gov mirror)
  12. Illinois Department of Insurance Company Bulletin 2024-17 — Autism Spectrum Disorder Coverage: Compliance with PA 102-0322 (Dec. 4, 2024)
  13. IDFPR — Behavior Analysts (Licensed Behavior Analyst, Licensed Assistant Behavior Analyst; 225 ILCS 6/150 notice)
  14. 225 ILCS 6/20 — Behavior Analyst Licensing Act: License required; exemptions (official text, source note through P.A. 104-618, eff. 7-24-26; read via witnessslips.ilga.gov mirror)
  15. 225 ILCS 150/10 — Telehealth Act: Practice authority (official text via witnessslips.ilga.gov mirror)
  16. BACB — U.S. Licensure of Behavior Analysts (Illinois, 2022)
  17. 29 CFR 2560.503-1 — ERISA claims procedure (eCFR)
  18. HFS — Adaptive Behavior Support (ABS) Services Fee Schedule, effective 01/15/2022, updated 05/14/2026
  19. HFS Chapter 100 General Handbook (Handbook for Providers of Medical Services: General Policy and Procedures)
  20. 42 CFR 433.139 — Medicaid third-party liability (eCFR)
  21. 10 U.S.C. 1079(i)(1) — TRICARE pays after other coverage except Medicaid
  22. 38 CFR 17.270 — CHAMPVA is the last payer
  23. Evernorth Behavioral Health Administrative Guidelines (PCOMM-2026-191, September 2026; incl. Illinois Regulatory Addendum)
  24. 225 ILCS 6/150 — Behavior Analyst Licensing Act: License restrictions and limitations (official text via witnessslips.ilga.gov mirror)

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.

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