An ABA contract is priced in 15-minute units and paid against terms that have nothing to do with the rate card. The rate is one number. The supervision ratio, the authorization window and the definition of a clean claim decide whether that number survives a full caseload. Most practices model the first page and sign the rest.
What this covers
- Every adaptive behavior code, 97151 through 97158 plus 0362T and 0373T, bills in 15-minute units, with daily maximums that cap the working day.
- CMS extended carrier pricing of the ABA code set through 2026, so there is no national Medicare rate to benchmark against. The contract is the price.
- The same code pays a different amount by rendering provider tier: Maryland Medicaid pays $24.41 a unit for 97153 delivered by a BCBA and $19.17 when an RBT delivers it.
- Supervision is a cost term. The BACB floor is 5 percent of a technician’s service hours each calendar month, and some payers require 10 percent or more.
- Signature starts a reporting cycle: records kept 7 years from the date of service, credentialing data re-attested every 120 days, enrollment changes reported within 30 days.
The rate card is the first page. Units, tiers and supervision are where the money moves.the same 15 minutes pays differently depending on who rendered it
ABA revenue concentrates in a handful of codes, and most of it is delivered by technicians. A case running 20 hours a week spends 80 units of 97153 every week, plus assessment units at the front and direction units throughout. A two percent difference in the unit rate on that case is small next to a payer that pays only the technician tier, caps the day at 32 units, and requires 10 percent of technician hours in supervision.
Contract review is where those terms get settled. The sections below cover what the rate card is worth unit by unit, the supervision and reauthorization language that prices the care model, the payment clocks you can hold a payer to, and the reporting duties that start at signature.
What the rate card buys, unit by unit
Every code in the adaptive behavior set bills in 15-minute units. 97151 and 97152 cover assessment, 97153 and 97154 treatment by protocol, 97155 protocol modification and direction, and 97156 through 97158 caregiver and group work. Four units make an hour, so a 32-unit daily maximum is an eight-hour day for one client.
There is no national price to anchor against. CMS extended carrier pricing of the ABA codes through 2026, which leaves every rate to be negotiated with every payer. Whatever the signed contract says becomes the benchmark for the case.
| Code | Rendered by | Maryland Medicaid rate per unit | Daily maximum |
|---|---|---|---|
| 97151 | Psychologist, BCBA-D or BCBA | $38.34 | 32 units |
| 97152 | BCaBA, RBT or BT | $19.17 | 32 units |
| 97153 | BCBA $24.41, BCaBA $20.91, RBT or BT $19.17 | Tiered by rendering provider | 32 units |
| 97155 | Psychologist, BCBA-D or BCBA | $38.34 | 24 units |
| 97156, child absent | BCBA $20.91, BCaBA $12.21 | Tiered by rendering provider | 16 units |
| 97156, child present (U2) | BCBA $38.34, BCaBA $20.91 | Tiered by rendering provider | 16 units |
Read the fee schedule by tier, because the tier is a staffing instruction. The assessment and treatment plan pays $38.34 a unit. On 97153, the highest-volume code in ABA, the gap between the BCBA tier and the technician tier is about 21 percent. Caregiver training with the child in the room pays $38.34 and the same code without the child pays $20.91.
Because the ABA codes are carrier priced, no published national Medicare amount exists for 97153 or its neighbors. Ask for the fee schedule in writing before signing, and ask whether a technician’s units are defined by the rendering provider or by the supervising provider.
Supervision terms set the cost of a technician model
The BACB requires ongoing supervision for at least 5 percent of the hours a technician spends providing behavior-analytic services each calendar month, with a minimum of two face-to-face, real-time contacts a month. Supervision documentation is kept where it can be reached for seven years. A technician whose certification lapses cannot practice, bill or represent themself as an RBT, which turns a credential expiry into a claims problem.
Payers set their own ratio on top of that floor. Maryland Medicaid requires the direction performed by a psychologist, BCBA-D or BCBA to equal at least 10 percent of the hours a BCaBA, RBT or BT spends delivering direct services. The same manual caps 97155 at 24 units a day and allows remote direction only with approval and the GT modifier.
Ten percent direction across 1,600 technician units a month, about the load of four or five full-time technicians, is 160 units a supervisor has to deliver or arrange. At the $38.34 Maryland pays for 97155, those units are worth roughly $6,100, and the work has to fit inside a 24-unit daily cap per supervisor. Model the ratio against the cap before signing.
- Who may supervise, and whether a BCaBA can carry part of the ratio
- Whether technician units pay at a separate tier and which codes a technician can bill
- Whether remote direction is allowed, under which modifier, and whether it needs prior approval
- Where the ratio is written: contract, provider manual or benefit policy
- What happens to outstanding claims when a certification lapses mid-authorization
Maryland also requires behavior technicians to submit proof of RBT certification through its enrollment system inside a 90-day grace period to keep Medicaid enrollment active. On a caseload that runs on technician hours, that date belongs on the same calendar as the authorization dates.
Authorization windows and medical necessity language
The contract often says little about authorization. The benefit manual says a great deal, and the manual can change between renewals. Maryland Medicaid issues ABA preauthorization for a maximum of 180 days and requires a reassessment and a new request every 180 days, with reassessment capped at 12 units per request. TRICARE’s Autism Care Demonstration runs on six-month authorization periods.
Federal rules put a ceiling on decision time for most public payers. Medicare Advantage organizations, state Medicaid fee-for-service programs, Medicaid managed care plans and CHIP managed care entities must decide a standard prior authorization request within seven calendar days and an expedited request within 72 hours, counted in calendar time rather than business hours, with extensions of up to 14 additional calendar days where the rules permit. Those payers also post annual approval and denial rates on their websites.
In some states an approved service cannot be denied or reduced later on medical necessity grounds. Texas sets that rule for HMOs and insured PPO plans, and treats a verification of benefits as a payment guarantee while an eligibility check is not one. Ask for the equivalent language, stated as a unit total, a start date and an end date.
Three terms belong in the agreement when the payer will accept them: a retroactive authorization window measured in days, the version of the medical necessity criteria the payer will apply, and a decision clock that starts when the request is received rather than when a reviewer opens it. A criteria set that changes mid-authorization without notice turns an approved plan into a denial at claim time.
Clean claims, filing limits and late payment
Federal Medicaid rules define a clean claim as one that can be processed without additional information from the provider or a third party. A claim under review for medical necessity is not a clean claim, and a claim from a provider under investigation for fraud or abuse is excluded. That distinction decides whether a late payment clock ever started.
| Rule | What it gives the practice | Source |
|---|---|---|
| Medicaid fee for service | 90 percent of clean claims paid within 30 days, 99 percent within 90 days | 42 CFR 447.45(d) |
| Texas HMO and insured PPO plans | Payment in 30 days for electronic claims, 45 days for paper, with a 95-day provider filing deadline | TDI prompt pay rules |
| Texas fee schedule changes | Fee schedule within 30 days of request, 90 days notice of a change, no retroactive effect | TDI prompt pay rules |
| Texas late payment | Penalty of 50 to 100 percent of the gap between billed charges and the contracted rate, plus 18 percent interest when payment runs 90 days past the deadline | 28 TAC Chapter 21 |
| Medicare Advantage and Medicaid managed care | Prior authorization decisions in 7 calendar days standard, 72 hours expedited | CMS-0057-F |
None of these rules replaces the contract, and most prompt pay statutes exclude self-funded employer plans, Medicare and Medicaid, where the payer’s own book of business decides. What the rules give a practice is language to copy into a negotiation: a payment window, a definition of the date of receipt, notice before a rate change, and no retroactive application of a new fee schedule.
The audit clause deserves the same attention as the payment window. Ask for the lookback in months, the sampling method, the notice period before an extrapolated recoupment, and the right to review the sample before a demand is issued. Behavioral health revenue cycle management works better when those answers are already on file, and so does an appeal.
What you owe once the contract is signed
Obligations on the provider side are reporting obligations, and they run on short clocks. Medicare enrollment changes go to the contractor within 30 days when they involve a change of ownership, an adverse legal action or a change of practice location, and within 90 days for everything else. Documentation supporting orders, certifications, referrals and payment requests is kept for seven years from the date of service.
Credentialing data ages on its own schedule. CAQH requires a re-attestation every 120 days, or 180 days for providers in Illinois, and a lapsed attestation moves the profile to expired. Medicare Advantage organizations recredential clinicians at least every three years. Medicaid managed care plans may execute a provider agreement before enrollment is finished, but must terminate that provider if enrollment has not come through within one 120-day period, and they check the federal exclusion lists at contracting and at least monthly.
- Fee schedule, provider manual and medical policy version, filed with the contract date
- Every person allowed to supervise, with the ratio the payer requires
- Authorization calendar: end date, reassessment date, and the packet lead time working backward
- Credentialing owner plus the next re-attestation date for each clinician and technician
- Enrollment change log covering ownership, locations and adverse actions, with notice dates
- A records location that survives a biller leaving the practice
- A quarterly read of the payer’s published authorization metrics
Termination and continuity terms decide what a rate dispute costs, because the practice carries the session schedule when a provider is dropped. On the federal exchange a qualified health plan must try to notify patients 30 days before a provider is discontinued, and must let an enrollee in an active course of treatment keep in-network cost sharing for up to 90 days when the termination is without cause. ABA agreements rarely extend that protection to a child mid-authorization, and the gap is worth raising while the payer still wants the network filled.
The order to negotiate in
One row per code, with the rate, the rendering provider tier, the daily maximum and the supervision hours the code requires. The model shows what a 10 percent direction ratio costs before anyone signs.
Fee schedule, provider manual, medical policy and its version number. Terms that live in a manual can be amended mid-term, so ask which version governs and how much notice a change requires. The MedFactor team reads these for ABA practices every week.
Payment window, definition of receipt, timely filing for corrected claims, and the audit lookback. Payers rarely lose money granting these.
A higher unit rate with a 90-day authorization and a 20 percent supervision requirement is worse than a lower rate with six months and a 5 percent floor. Price the whole term before comparing offers.
Every authorization end date and credentialing expiry goes into one file with a named owner. Pull the payer’s published authorization metrics and your own denial data a quarter before the term ends, because a renewal meeting is the only moment rates move without a fight.
ABA contract terms, rates and payer obligations
Federal Medicaid rules define it as a claim that can be processed without additional information from the provider or a third party. A claim under review for medical necessity is not clean, and neither is one from a provider under investigation for fraud or abuse. A late payment clock usually starts only when a clean claim is received.
No. CMS has held the adaptive behavior code set under carrier pricing, and extended that through 2026, so there is no published national Medicare amount for codes such as 97153. Each rate is negotiated. Benchmarks come from the fee schedule attached to the contract, state Medicaid fee schedules, and your own remittances.
It depends on the payer. The BACB floor is 5 percent of the hours a technician spends providing behavior-analytic services each calendar month, with two face-to-face contacts a month. Maryland Medicaid requires direction equal to at least 10 percent of technician direct service hours. A ratio above the certification floor is a cost term.
Maryland Medicaid authorizes ABA for a maximum of 180 days and requires a reassessment and a new request every 180 days, with reassessment capped at 12 units per request. TRICARE’s Autism Care Demonstration issues six-month authorizations. Build the reauthorization packet to arrive with time for the payer’s decision clock to run.
It happens, and the mechanism is usually the fee schedule rather than the contract. Texas requires carriers to provide a fee schedule within 30 days of request, gives 90 days notice of a change, and prohibits retroactive application. Comparable protection does not exist in every state, so read the amendment clause before signing.
Records supporting orders, referrals and payment requests are kept 7 years from the date of service for Medicare. Enrollment changes are reported within 30 days for ownership, adverse legal actions and practice locations, and within 90 days otherwise. CAQH re-attestation runs every 120 days, and Medicare Advantage recredentialing at least every three years.
Medicare Advantage, state Medicaid fee for service, Medicaid managed care and CHIP managed care entities must decide standard requests within seven calendar days and expedited requests within 72 hours, counted in calendar time. Extensions of up to 14 additional calendar days are permitted where the rules allow, so the working timeline runs longer.
The bottom line
An ABA contract is a rate per 15-minute unit plus a set of constraints on how those units get delivered. The constraints decide the margin, and the reporting duties decide how cleanly the claims run. Read the fee schedule by tier, write the supervision ratio and the payment clocks into your notes, and set the calendar before the first session. If nobody can say which codes are losing money at the contracted rate, a contract and billing review is where to start.
Do your ABA contracts pay for the supervision they require?
We work ABA and behavioral health claims end to end: contract and fee schedule review, authorization calendars, unit tracking and the denials that follow a coverage gap. Send us a fee schedule and one month of claims and we will show you which codes pay for themselves.
Request a free ABA billing auditThis article describes general billing and contracting practice rather than legal or coverage advice; terms vary by payer and by state, so confirm them against the current provider manual and your own counsel.
