White paper · ABA Medicaid billing

ABA Medicaid rate cuts into 2027: the margin playbook

Short answer: Indiana phases a 6% then 4% cut through April 2027, New York drops technician 97153 to $9.63 a unit from October 2026, Nebraska rebased its whole schedule. The price of a unit is leaving your control; this paper is about the columns that are not: units captured, units billed clean, and the payers those units belong to.

Indiana BT202627 · Apr 1, 2026 and 2027 New York 97153 · $9.63 · Oct 1, 2026 Price × clean units × payer mix

October 27, 202614 min readASP-RCM Solutions

Edition

1 · 2026

Focus

ABA margin after cuts

States

IN · NY · NE · MA

Levers

Horizon

90 days

Next dated cut

Apr 1, 2027

6% + 4%

Indiana's phased ABA cuts, dates of service from April 1, 2026 and April 1, 2027 [1]

$9.63

New York technician 97153 per unit from October 1, 2026 [2]

Aug 62026

CMS approval of Nebraska SPA NE-25-0020, effective August 1, 2025 [4]

4,000hours

Indiana lifetime comprehensive ABA allocation, modifier UA [1]

Three states, three instruments

Three ways to take money out of ABA

Indiana bundled a phased cut with new modifiers, caps and supervision rules; New York cut one code for one credential; Nebraska rebuilt its schedule on neighbors' average. Every action lands on the 15-minute unit, so the defense is built unit by unit.

State	Instrument	What changed	Dates of service
Indiana	IHCP bulletin BT202627 [1]	6% maximum fee reduction on all nongroup ABA codes, then an additional 4% on every ABA code including group services	Apr 1, 2026 Apr 1, 2027
New York	Medicaid Update, August 2026 [2] and SPA 25-0061 [3]	Fee-for-service rate for CPT 97153 delivered by unlicensed individuals or technicians reduced to $9.63 per unit under the FY 2026-27 Enacted Budget	On or after Oct 1, 2026
Nebraska	SPA NE-25-0020 [4]	ABA rates adjusted to a blended average of nearby states' Medicaid ABA rates; same rates for governmental and private providers; per-code amounts in the DHHS fee schedule the SPA points to	Effective Aug 1, 2025 CMS approved Aug 6, 2026
Massachusetts	101 CMR 358.00 hearing notice [8]	EOHHS proposes to maintain current ABA rates, treated as no change in aggregate spending for 197 providers	On or after Dec 1, 2026, subject to federal approval

Takeaway

A rate cut is a change to the price of a unit. Everything you control sits on the other side of that multiplication: how many authorized units you deliver, how many you bill correctly the first time, and which payers those units belong to.

Indiana in detail

The template

BT202627 bundles a rate cut with program-integrity rules; the numbers are the bulletin's own tables [1].

Code and modifier	Through Mar 31, 2026	DOS from Apr 1, 2026	DOS from Apr 1, 2027
97153 U1 (RBT)	$17.06	$16.04	$15.39
97153 U2 (BCaBA) and U3 (BCBA, BCBA-D, HSPP)	Not payable	$16.04	$15.39
97155 U3 (BCBA protocol modification)	$27.63	$25.97	$24.93
97155 U2 (BCaBA)	$21.85	$20.54	$19.72
97151 U3 (assessment)	$27.63	$25.97	$24.93
97156 U3 (caregiver guidance)	$28.23	$26.54	$25.47
0362T and 0373T U1	$28.54	$26.83	$25.75

One technician hour of 97153 in Indiana

Four units, calculated from the bulletin rates [1]

$68.24

Through Mar 2026$17.06 x 4

$64.16

From Apr 2026-6.0%

$61.56

From Apr 2027-9.8% vs base

-$6.68 per technician hour by April 2027

Group 97154 per unit from April 1, 2026, by size

Flat $4.87 replaced; April 2027 cut applies on top [1]

$4.87

Old flatany size

$9.21

2 people+89%

$6.14

3 people+26%

$4.61

4 to 8-5%

Wrong size modifier (U4, U6, U8) is now a direct revenue error

Lifetime allocation

Modifier UA

Up to 4,000 hours (16,000 units) of comprehensive ABA per member; UA on the PA request and the claim
97155 and 97156 excluded, never UA
Targeted ABA: up to 15 hours a week, no UA, after the 4,000 hours

Credential modifiers

Billing only, never on the PA

U1 for RBTs (specialty 625), U2 for BCaBAs (624), U3 for BCBAs, BCBA-Ds and HSPPs (615)

Caregivers and supervision

In every PA request

Caregiver coaching required, up to 18 hours over a standard six-month authorization
RBT supervision of at least one hour for every eight hours of technician-delivered service

Telehealth, age and FBA

Unit-killing rules

Modifier 95 no longer allowed on 97151, 97152, 97153, 97154 or 0373T
EPSDT only: no authorization or payment at 21 and older from October 1, 2026, after a transition window April 1 to September 30, 2026
From October 29, 2026, BT2026162 requires a complete FBA per BIP target: QABF or FAST, ABC data, a hypothesized function, updated at each reauthorization [6]

Takeaway

In Indiana the rate cut is 6% then 4%. The unit loss from a missed UA modifier, a wrong group tier, a telehealth 97153 line or an unsupported BIP is 100% of the unit.

New York and Nebraska

One code, one method

New York's cut is narrow and deep: 97153 by unlicensed individuals or technicians to $9.63 per unit from October 1, 2026 [2]; SPA 25-0061, transmitted December 31, 2025, describes the same reduction [3]. Nebraska's SPA NE-25-0020 aligns rates, effective August 1, 2025, with a blended average of geographically proximate states, approved August 6, 2026 [4]; reconcile every 2026 remittance against the DHHS schedule, not 2024 contract loads.

Medicaid fee-for-service rate for one unit of 97153 by a technician, 2026 schedules

The same RBT hour is worth $38.52 to $64.16 depending on the state [1] [7] [2].

$16.04$64.16 per hour

Indiana U1from Apr 1, 2026

$15.39$61.56 per hour

Indiana U1from Apr 1, 2027

$12.40$49.60 per hour

WashingtonJul 1, 2026, PA required

$9.63$38.52 per hour

New Yorkfrom Oct 1, 2026

Indiana phasesWashington (also 97155 $14.09, 97156 $18.32, 97151 $18.79, 28 units per assessment, two a year)New York

The margin math

Price times clean units times payer mix

A 10% cut is offset if clean units rise about 11% on the same payer, or hours shift to a payer still paying the old rate. Neither happens by accident.

Price per unit

Set by bulletin or contract; the column you cannot move this quarter.

Units billed clean

Authorized units delivered, documented and paid first time.

Payer mix

Who owns the delivered hours, at what rate after denials.

1,000 authorized 97153 units in Indiana: how the three levers interact

Illustrative arithmetic on bulletin rates; percentages are your own inputs [1].

Today$16.04, 80% delivered and paid, 800 units

$12,832baseline, 100%

April 2027 rate, same 80%$15.39, 800 units

$12,312-4.1%, the cut

April 2027 rate, 86% delivered and paid$15.39, 860 units

$13,235+3.1% vs today

86% delivered, 3% of lines lost to defects$15.39, 834 units

$12,835+0.02% vs today: most of the gain given back

0$6,600$13,235

TodayCut onlyUnit captureCapture minus defects

Takeaway

A six-point gain in authorized-unit delivery more than covers the 4% second-phase cut; a 3% defect rate gives most of it back. Model your own payers before April 1, 2027.

Lever 1: unit capture

Units you never deliver or bill

Cancellations, open RBT hours, late treatment plans and unassigned caseloads show up as units that expire. At scale: our multi-state diagnostic, where $5.05M of claims were never answered.

Build the authorization ledger

Every auth by member, payer, code, units authorized, scheduled, delivered and billed; end date; unit convention per payer.

Report authorization utilizationweekly, by location and BCBA

Delivered over authorized units; flag any member below the clinic's floor.

Separate active clients from clients who stopped attending

The second group needs a discharge or reauthorization decision, not scheduling.

Match every delivered session to a billed line5 business days

A session with no line is a defect, not a backlog.

Bill 97156 and 97155 when delivered and documented

Indiana PA requests must include caregiver coaching hours, so unbilled 97156 is lost revenue and a compliance gap [1].

Unit conversion is its own leak. MO HealthNet's September 9, 2026 hot tip: exact start and stop times, subtract naps, meals and breaks, sum active minutes per code per day, convert once, one line per code per day; duplicates deny in eMOMED [5].

Total active minutes in the day, per code	Units to bill
Fewer than 8	0
8 to 22	1
23 to 37	2
38 to 52	3
53 to 67	4
68 to 82	5
Each additional 15-minute increment	+1 when at least 8 minutes are reached

RuleRounding each short session up before adding overbills; add first, convert once. Concurrent BCBA protocol modification gets its own start and stop times and a single 97155 line [5]. Our concurrent supervision case study shows what breaks when that separation is missing.

Lever 2: clean claims

The units you deliver and then lose

After a cut, every denied or recouped unit costs the same rework and returns less cash. These defects were published in 2026 bulletins, so payers are checking for them.

State	Rule	What the claim must carry
Indiana [1]	Credential modifiers U1, U2, U3; group-size modifiers U4, U6, U8; UA for comprehensive services; rendering specialty 625, 624 or 615	The modifier set that matches the rendering credential, the group size and the plan type on the PA
Indiana [6]	FBA required for each BIP target behavior from October 29, 2026, refreshed at each reauthorization	A treatment plan that will survive a reauthorization review
North Carolina [12]	Paraprofessionals need RBT or ABAT certification, 120-day grace from August 1, 2026; no telehealth for 97152 to 97154; plans above 16 hours a week reauthorized every three months; at least 10% of paraprofessional hours observed by the LQASP	A credentialed rendering technician and a supervision log that supports the 10%
Georgia [11]	Providers who missed the July 1, 2026 revalidation have claims with later dates of service unpaid; the new effective date is the submission date, with no retro-enrollment	An enrollment that is current at every billing and rendering NPI
Missouri [5]	One line per code per day, exact start and stop times, no block billing	A daily unit total per code that reconciles to the session record

The operating answerThe three-way match: no claim leaves until authorization, session note and claim line agree on member, payer, code, modifier, credential, date and units. In our three-way match recovery case study a 42-site chain reversed $1.4M of post-payment takebacks by gating every claim on authorization, supervision ratio and the session note.

Load each payer's modifier grammar as hard stops, not warnings

Credential, group-size and plan-type modifiers; telehealth rules by code.

Run the rendering NPI against the enrollment file and the certification registry

Before the first claim and at every revalidation date.

Hold telehealth lines where the code is excluded

97152 to 97154 with place of service 02 or 10 where the state removed telehealth.

Attach the supervision log to the reauthorization packet

Indiana's one-in-eight rule and North Carolina's 10% observation rule are the audit baseline.

Work denials by root causewithin 10 days

Fix the template, not the claim; a 3% defect rate at a lower price is the fastest way to lose recovered margin.

Takeaway

Clean-claim work after a rate cut is not a cost center. It is the only lever that returns cash without adding a single clinical hour.

Lever 3: payer mix and contract terms

Medicaid moves by bulletin, contracts by negotiation

Some 2026 commercial rules give ABA providers more room than they realize. Where an MCO pays below the state schedule, ask for the contract clause and the state rate floor in writing before the next amendment; the ABA payer policy matrix tracks these notices.

Iowa Code 514C.22

Plans renewed from Jan 1, 2026

No aggregate annual or lifetime limit on autism spectrum disorder benefits for covered group plans
No limit on outpatient visits with an ABA practitioner [9]

BCBS Nebraska I.178

Nov 15, 2026

Treatment plans of up to 25 hours per week
Only 97155 and 97156 by telehealth
LBA or BCBA supervises at least 25% of direct hours a BCaBA delivers [10]

Massachusetts

Dec 1, 2026, proposed

MassHealth ABA rates proposed flat: a freeze, not a cut
A planning number for the 2027 budget [8]

StepPullDecide

1. Volume12 months

PullDelivered units by payer and code; current and announced rate by date of service

ResultVolume base; 97153 exposure separated from 97155 and 97156; caps, telehealth codes and credential rules per payer

2. Cashafter denials

PullDenied and recouped units by root cause, per payer

ResultCash per delivered hour by payer

3. Rankbefore the 2027 budget

PullPayers ranked on that number

DecideWhere the next BCBA hire's caseload comes from; this is slow, so start now

The 90-day margin playbook

For a group with Indiana, New York or Nebraska exposure

1
Day 1Rates loaded with dates of service
10
Day 10Model per location
30
Day 30Ledger and utilization live
45
Day 45Scrubber hard stops
60
Day 60Payer-mix review done
90
Day 902027 budget on delivered units

Days 1 to 10

Load every announced rate by date of service; model price x clean units x payer mix per location

Days 10 to 30

Authorization ledger and weekly utilization report; discharge or reauthorize inactive members

Days 20 to 45

Hard-stop modifier, credential, telehealth and unit-conversion rules; supervision logs on reauth packets

Days 30 to 60

Payer-mix review by cash per delivered hour; open MCO rate-floor and contract conversations

Days 60 to 90

Reconcile remits line by line against the new schedules; escalate underpayments in writing; 2027 budget on delivered units

Rates and budgetUnit captureClean claimsPayer mix

Daily

Sessions without a billed line, lines without a matching note, modifier hard stops

Weekly

Authorization utilization by location and BCBA, with expiring auths 30 days out

Monthly

Cash per delivered hour by payer, denial root causes, remit-to-schedule variance

Takeaway

The groups that hold margin through 2027 will not be the ones that negotiated hardest. They will be the ones that delivered and billed the units they were already authorized to provide.

What to do this week

Six moves before the next dated cut

Load every announced rate with its date of serviceThe Q4 rate tracker links each state document.

Run the 1,000-unit model on your own percentagesDelivery rate, defect rate, payer mix, per location.

Export every active authorization with units delivered and billedThe gap is unit capture; the multi-location operating model describes the ledger.

Turn each 2026 bulletin rule into a scrubber hard stopModifiers, credential, telehealth by code, one line per code per day.

Rank payers by cash per delivered hour after denialsOn contract value, per the gross collection rate guide.

Build the reports, or borrow themLedger, three-way match and payer-mix review are the standing reports in our ABA billing service, run inside the practice management systems groups already use; the ABA RCM toolkit has the templates.

FAQ

Frequently asked questions

How much are Indiana Medicaid ABA rates being cut in 2026 and 2027?

IHCP bulletin BT202627 applies a 6% maximum fee reduction to all nongroup ABA codes for dates of service on or after April 1, 2026, and an additional 4% reduction to all ABA codes, including group services, for dates of service on or after April 1, 2027. For example, 97153 billed by an RBT moves from $17.06 to $16.04 and then to $15.39 per 15-minute unit.

What is the new New York Medicaid rate for CPT 97153?

The August 2026 New York State Medicaid Update states that, as authorized by the FY 2026-27 Enacted Budget, the fee-for-service reimbursement for CPT 97153 delivered by unlicensed individuals or technicians is reduced to $9.63 per unit effective October 1, 2026. Managed care plans set their own contracted rates.

What did Nebraska change in its ABA fee schedule?

State Plan Amendment NE-25-0020, approved by CMS on August 6, 2026 with an effective date of August 1, 2025, adjusts Nebraska Medicaid's ABA rates to a blended average of Medicaid ABA rates in nearby states, with the same rates for governmental and private providers. The per-code amounts are on the DHHS fee schedule page the SPA cites.

What is the fastest way to offset an ABA Medicaid rate cut?

Deliver and bill more of the units you are already authorized to provide, then stop losing delivered units to modifier, credential, telehealth and unit-conversion defects. Payer-mix and contract work matters but takes months; unit capture and clean claims can move within a quarter.

Does the Indiana 4,000-hour lifetime allocation apply to every ABA code?

No. The allocation covers comprehensive ABA services billed with modifier UA. CPT 97155 and 97156 are excluded and must not carry UA on the PA request or the claim, and targeted ABA of up to 15 hours per week is outside the allocation. School corporations are also excluded.

Sources

Checked October 27, 2026. Confirm against the source; proposed rules are marked proposed.

ABA billing services ABA payer policy matrix by state ABA Medicaid rate tracker Q4 2026 ABA billing for multiple locations ABA gross collection rate explained ABA RCM toolkit

Want the margin model built on your own payer mix?

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