Pennsylvania does not run ABA as a stand-alone autism benefit. Medical Assistance pays for it as one branch of Intensive Behavioral Health Services (IBHS) — 55 Pa. Code Chapters 1155 (payment) and 5240 (licensing), in force since October 19, 2019 — delivered by licensed IBHS agencies to children, youth and young adults under 21 with a behavioral health diagnosis. Autism is the common case, but it is not the gate: the gate is a written order from a licensed prescriber, written within 12 months, naming the diagnosis, the hours per month and the settings.
The card a family shows you is usually the wrong card for ABA. Behavioral health in HealthChoices is its own managed-care component: every member is assigned a Behavioral Health MCO by county of residence — Community Care, Community Behavioral Health (Philadelphia), Magellan, PerformCare or Carelon — and that BH-MCO, not the physical-health plan on the card, authorizes and pays for IBHS. And because Pennsylvania's PH-95 category ignores parental income for children with disabilities, many commercially insured children carry Medical Assistance as a secondary payer that picks up ABA after the private plan under Act 62.
Chapter 1155 pays for IBHS "when the services are medically necessary and provided to eligible children, youth or young adults with a behavioral health diagnosis by licensed IBHS agencies" — a child is under 14, a youth 14 to under 18, a young adult 18 to under 21. ABA services are one of four IBHS families, delivered through four service types: behavior analytic services, behavior consultation–ABA (BC-ABA), assistant behavior consultation–ABA (Asst. BC-ABA) and behavioral health technician–ABA (BHT-ABA). OMHSAS's FAQ is explicit that the benefit is diagnosis-agnostic: IBHS is available when medically necessary "regardless of the child's, youth's or young adult's behavioral health diagnosis," so a child with ADHD or anxiety can qualify for ABA, and there is no minimum age and no time cap — services continue "as long as the services are medically necessary."[1][4][5]
OMHSAS's medical necessity guidelines (OMHSAS-20-05, Attachment 2) ask whether ABA is reasonably expected to reduce the child's identified needs or to support skill development toward maximum functional capacity, whether the child can be safely served in the community rather than a more restrictive level of care, and whether the ordered hours fit those goals — with a catch-all that services may still be "otherwise medically necessary." Discharge is allowed when goals are met, when there is no progress within 180 days and other services are in place, or after 45 consecutive days of unexplained non-attendance and three contact attempts.[1][4][5]
Everything hangs on the written order in 55 Pa. Code § 1155.33(a)(1). It must be based on a face-to-face interaction with the child, written within 12 months before ABA starts, by "a licensed physician, licensed psychologist, certified registered nurse practitioner or other licensed professional whose scope of practice includes the diagnosis and treatment of behavioral health disorders and the prescribing of behavioral health services." It must carry a DSM or ICD behavioral health diagnosis, the clinical information supporting each ABA service ordered, "the maximum number of hours of each ABA service per month," the settings where services may be provided, and the measurable improvements that mark when services may be reduced or ended. OMHSAS's FAQ adds that a separate best-practice evaluation is not required — the order is the requirement.[1][2][4]
Once ABA starts, the clock runs: a face-to-face assessment by a behavior analytic or BC-ABA-qualified clinician within 30 days (and before the ITP), an individual treatment plan within 45 days, ITP review at least every 6 months, assessment update at least every 12 months, and a new order written within 12 months for continued services. The ITP must be signed by the parent (or youth/young adult), the clinician who wrote it and a clinical-director-qualified reviewer. Payment is allowed for up to 75 days after initiation before the ITP exists, as long as there is a compliant order and a treatment plan for the services delivered.[1][2][4]
In HealthChoices, "Each HealthChoices consumer is assigned a Behavioral Health Managed Care Organization (BH-MCO) based on his or her county of residence." DHS's current map: Community Behavioral Health (CBH) serves Philadelphia; Community Care Behavioral Health serves 41 counties including Allegheny, Berks, Chester, Delaware, Erie, Lackawanna, Luzerne and York; Magellan Behavioral Health of Pennsylvania serves Bedford, Bucks, Cambria, Lehigh, Montgomery, Northampton and Somerset; PerformCare serves Cumberland, Dauphin, Franklin, Fulton, Lancaster, Lebanon and Perry; and Carelon Health of Pennsylvania serves Armstrong, Beaver, Butler, Crawford, Fayette, Indiana, Lawrence, Mercer, Washington, Westmoreland and Venango. OMHSAS counted 2,717,158 HealthChoices behavioral health covered lives in July 2026.[13][20][6]
Two operational consequences for intake. First, ask for the county, not the plan name — the physical-health MCO card (UPMC for You, Keystone First, Highmark Wholecare and others) does not tell you who authorizes ABA. Second, the state's own prior-authorization handbook applies only to fee-for-service: OMHSAS-20-07 says providers in managed care "should address questions about authorization of IBHS to the appropriate managed care organization," so authorization mechanics, forms and turnaround live in each BH-MCO's documents (see the per-BH-MCO guides).[13][20][6]
Pennsylvania's autism insurance law (Act 62 of 2008) named the Medical Assistance program as a "government program" and pushed private insurers to pay first. DHS's Act 62 page states the operating rule: providers must "bill a child's or adolescent's private health insurance company before submitting a claim for the diagnostic assessment or treatment of ASD," and the IBHS rule repeats it generally — "Payment will not be made for a compensable IBHS if payment is available through a third party." Under 55 Pa. Code § 1101.64, MA then pays the difference up to its own fee, or pays in full when the private plan refuses with a written refusal attached.[14][15][16][21]
What makes that interplay matter at scale is PH-95, "Medicaid for Children with Special Needs." It gives full Medical Assistance to children under 18 who meet Social Security disability standards, and "Parental income must be verified but will be excluded in this category." As of this review (September 2026) DHS still publishes the category, so a child with an autism diagnosis in a family well above Medicaid income limits can hold MA as secondary coverage, and an IEP, IFSP or early intervention evaluation can support presumptive eligibility while disability is certified. For intake, that means two questions on every commercial case: does the child also have Medical Assistance, and if not, would the family benefit from applying?[14][15][16][21]
OMHSAS's IBHS code table (OMHSAS-21-03, Attachment A, January 2021) lists the MA fee-for-service ABA rates per 15-minute unit: 97151 behavior identification assessment $22.09 (BC-ABA) or $24.73 with the U7 modifier (behavior analytic / BC-ABA by a BCBA); 97152 $12.73 (BHT-ABA) or $15.76 (U8, Asst. BC-ABA); 97153 $12.73 (BHT-ABA) or $15.76 (U8); 97155 and 97156 $22.09 or $24.73 (U7); group 97154/97158 from $5.13 to $16.63 by group size. These are the FFS schedule as published in 2021 — the current MA fee schedule sits behind an AMA CPT licence click-through we did not accept, and HealthChoices rates are set in each BH-MCO's provider contracts, so confirm the live rate with the BH-MCO.[9][22][2][12][18][19]
Staffing is regulated, not just credentialed. Behavior analytic services require a Pennsylvania license (psychologist, professional counselor, MFT, clinical social worker, social worker, behavior specialist, CRNP or another scope that covers ABA oversight) plus a BCBA or equivalent; BHT-ABA staff need a BCaBA, RBT or BCAT certification, another accredited behavior-analysis certification, a high school diploma plus the 40-hour RBT-content training certified by a BCBA/BCaBA trainer, or two years of ABA experience plus 40 hours of training. Since the BACB's January 2026 change, OMHSAS expects BHT/BHT-ABA staff trained on the old RBT Task List to update to the 3rd-edition Test Content Outline within a year. Pennsylvania has no behavior-analyst licence as such (it is absent from the BACB licensure table); the State Board of Medicine's Behavior Specialist licence is the common route for BCBAs without another PA licence.[9][22][2][12][18][19]
The questions that decide whether a family can start with Pennsylvania Medicaid (Medical Assistance), and what they have to bring. Each maps onto something intake should ask on the first call.
Under 21. Chapter 1155 covers "children, youth or young adults with a behavioral health diagnosis," defining a young adult as "18 years of age or older but under 21 years of age"; OMHSAS bulletins scope IBHS to "children, youth and young adults under 21 years of age." There is no minimum age in the rule, and no duration cap — OMHSAS: services continue "as long as the services are medically necessary." Adults 21 and over are outside IBHS.[1][4]
The recency rule attaches to the written order, not to a diagnostic evaluation: the order must be "Written within 12 months prior to the initiation of ABA services," based on a face-to-face interaction, and must include a DSM or ICD behavioral health diagnosis; continued services need a new order written within 12 months. The rule sets no separate age limit on the underlying diagnostic evaluation, and OMHSAS says a best-practice evaluation is not required.[1][4]
The diagnosis travels in the written order, which may be written by "a licensed physician, licensed psychologist, certified registered nurse practitioner or other licensed professional whose scope of practice includes the diagnosis and treatment of behavioral health disorders and the prescribing of behavioral health services, including IBHS." The rule does not require the diagnosis to come from a specialist such as a developmental pediatrician.[1]
No diagnostic instrument is required. Chapter 1155 requires only a DSM or ICD behavioral health diagnosis in the order. Standardized tools appear later, inside the ABA assessment: § 5240.85 requires "Completion of standardized behavioral assessment tools as needed," an adaptive skills assessment and observational data across home, school and community — assessment content, not a diagnostic gate.[1][2]
Yes — the written order is the referral, and nothing starts without it: "An IBHS agency shall provide ABA services ... in accordance with a written order under § 1155.33(a)(1)." The order must be face-to-face based, dated within 12 months before initiation, and must state the clinical justification for each ABA service, "The maximum number of hours of each ABA service per month," the settings, and measurable discharge markers. The agency must also obtain written consent from the parent/guardian (or youth/young adult) for the ordered services before starting.[1][2]
Fee-for-service (OMHSAS): the FFS handbook commits to "issue a decision within 21 days of receipt of the request" and says the request "is deemed approved" if OMHSAS misses it; expedited review (child at immediate risk of a more restrictive placement, or services must start before the assessment/ITP) is decided "within three business days"; continuation requests must arrive "at least 30 days prior to the expiration of the current authorization." That 2020 handbook predates 42 CFR 440.230(e), which since January 1, 2026 requires FFS standard decisions "in no case later than 7 calendar days after receiving the request" (72 hours expedited). HealthChoices BH-MCOs (PIHPs) fall under 42 CFR 438.210(d): standard decisions within 7 calendar days for rating periods starting on or after January 1, 2026 (up to 14 more on extension), expedited within 72 hours. DHS's own HealthChoices standard is tighter still: Appendix AA (January 1, 2026) requires every BH-MCO to communicate a prospective or expedited decision "within two (2) Business Days of the receipt of all supporting information" (one business day for concurrent review), to request missing information within 48 hours and allow 14 days to supply it, and deems the service "automatically approved" if the member has no written decision within 21 days of the request. Act 146 of 2022 sets the same two-business-day clock for an "MA or CHIP managed care plan".[7][24][25][26][17]
Medical Assistance pays last, and Pennsylvania spells it out twice. 55 Pa. Code § 1101.64: "Other private or governmental health insurance benefits shall be utilized before billing the MA Program," naming Blue Cross, Blue Shield or other commercial insurance, CHAMPUS and VA as primary; MA then pays the difference up to its fee, or pays when the primary refuses, with the refusal advisory attached. § 1155.31(e) applies it to IBHS: "Payment will not be made for a compensable IBHS if payment is available through a third party." DHS's Act 62 guidance requires billing the child's private insurer before the MA claim for ASD assessment or treatment. TRICARE, by federal statute, pays ahead of other coverage except Medicaid (10 U.S.C. 1079(i)(1)), so TRICARE is primary to MA; CHAMPVA is the last payer after other health insurance. Whether a BH-MCO requires its own IBHS authorization when MA is secondary is a BH-MCO rule — see the BH-MCO guides.[16][1][14][27][28][29]
OMHSAS-22-02 lets MA behavioral health services, including IBHS, be delivered by telehealth when clinically appropriate and with documented consent, but flags IBHS as a "high intensity" service where providers should weigh how much must stay in person; for young children it recommends a caregiver participate (ages 3–5) or observe (6–9). In fee-for-service, telehealth claims use POS 02 (not at home) or POS 10 (home) only on codes the MA fee schedule lists with those POS, plus FQ for audio-only; the 2021 IBHS code table lists ABA codes only with POS 03, 11, 12 and 99. HealthChoices providers "must follow the billing instructions of the BH-MCO." Which ABA codes currently carry telehealth POS could not be confirmed — the live fee schedule sits behind a CPT licence click-through.[11][9]
Blocked on: The MA Program Outpatient Fee Schedule (humanservices.dhs.pa.gov/OUTPATIENTFEESCHEDULE — requires accepting the AMA CPT licence) for POS 02/10 on 97151–97158, or the member's BH-MCO telehealth billing instructions.
Coverage decides whether Pennsylvania Medicaid (Medical Assistance) 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 is written into the licensing rule (55 Pa. Code § 5240.82). BHT-ABA staff: 1 hour of supervision a week if working 37.5+ hours (otherwise 1 hour twice a month), including at least 1 hour of individual face-to-face supervision a month; 6 hours of onsite supervision before a new BHT-ABA works independently; and 1 hour of direct observation during ITP implementation every 4 months — every 2 months for staff qualified only through the diploma-plus-40-hour-training route. Asst. BC-ABA staff: 1 hour twice a month, one-to-one and face-to-face, 3 hours onsite before working independently, and 30 minutes of direct observation every 6 months. Behavior analytic and BC-ABA clinicians get 1 hour a month from a clinical-director-qualified supervisor (plus an extra hour if they supervise others). One supervisor may oversee at most 12 FTE ABA staff, no more than nine of them BHT-ABA; supervision may be by secure real-time audio-video.[2]
In fee-for-service, yes for supervision of technicians: OMHSAS's FAQ says "In fee for service, staff who are qualified to provide behavior analytic, behavior consultation-ABA or Assistant behavior consultation-ABA (with a BCaBA) services can separately bill for direct observation and supervision of staff providing BHT-ABA services while the individual is working with a child" — i.e. 97155 alongside 97153. (For non-ABA individual services, supervision is built into the rate and not separately billable.) HealthChoices billing rules for the same clock time are set by each BH-MCO.[4]
The FFS IBHS code table sets per-day unit ranges: 97151 and 97152, 1 to 48 units a day; 97153 and 97155, 1 to 32 units a day; 97156, 1 to 16 units a day; group 97154, 2 to 32 and 97158, 1 to 32 units a day (all 15-minute units). Overall intensity is capped by the written order, which must state "The maximum number of hours of each ABA service per month." These are the January 2021 table's limits; HealthChoices BH-MCOs may apply their own.[9][1]
Each service is documented with date, time, duration and setting, the ITP goal addressed, the outcome, and the "Signature of the staff person providing the service"; every record entry must be "Signed and dated by the staff person writing in the record" (55 Pa. Code § 5240.41). Assessments are signed and dated by the clinician who completed them, and the ITP and each update must be signed by the parent/guardian (or youth/young adult), the clinician who wrote it and a clinical-director-qualified reviewer. Records are kept at least 4 years after the last service. Since January 1, 2024 OMHSAS expects consent, service verifications and treatment-plan approvals captured "in a manner that creates an auditable file."[2][1][23]
IBHS "shall be delivered in home or community-based, clinically appropriate settings as identified in the written order and ITP," and OMHSAS confirms ABA "can be provided in a school." One-to-one ABA at the agency's licensed location (center-based) is allowed when clinically appropriate and addressed in the service description, in a "community like" setting focused on building skills to return to home and community (OMHSAS-22-03), billed with POS 11. The FFS code table lists ABA codes with POS 03 (school), 11 (office), 12 (home) and 99 (other). Children in 24-hour residential facilities get IBHS only if the order explains why it is needed on top of, and does not duplicate, the facility's services.[2][4][10][8][1]
The licensed IBHS agency bills, not the individual clinician: "payment is made to a licensed IBHS agency for medically necessary IBHS provided by qualified individuals under the supervision and direction of a clinical director," and the agency must be licensed under Chapters 20 and 5240, hold a DHS provider agreement and be MA-enrolled. Chapter 1155 "does not apply to individual licensed practitioners ... that bill only for services provided directly by the licensed practitioners." The FFS code table places ABA under provider type 11, specialty 592, with modifiers identifying the rendering tier (U7 behavior analytic/BC-ABA by a BCBA; U8 Asst. BC-ABA; no modifier for BC-ABA or BHT-ABA).[1][9]
Yes — as ABA services within Intensive Behavioral Health Services (55 Pa. Code Chapter 1155), for children, youth and young adults under 21 with a behavioral health diagnosis, delivered by a licensed IBHS agency on a written order from a licensed prescriber.
No. The written order needs a DSM or ICD behavioral health diagnosis, and OMHSAS says IBHS is available when medically necessary regardless of the specific diagnosis.
The Behavioral Health MCO assigned by the family's county — CBH in Philadelphia, Community Care, Magellan, PerformCare or Carelon elsewhere — not the physical-health plan on the card. The few members outside HealthChoices go through OMHSAS fee-for-service prior authorization.
Often, yes. The PH-95 category covers children under 18 with SSA-level disabilities and excludes parental income. The private plan pays first under Act 62 and 55 Pa. Code § 1101.64, and MA can pay what remains up to its fee.
The FFS IBHS table (OMHSAS-21-03, January 2021) lists 97153 at $12.73 per 15 minutes for a BHT-ABA ($15.76 for an Assistant BC-ABA) and 97151/97155/97156 at $22.09 ($24.73 for a BCBA). HealthChoices rates are set in each BH-MCO's provider contract.
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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