CMS Proposes Six New ABA Codes for 2027

What the Six Codes Cover

ABA therapy does not begin and end when a clinician is face-to-face with a patient. Data must be reviewed, treatment targets may need to change, technicians need guidance, and some patients require more intensive staffing. The proposed 2027 Medicare Physician Fee Schedule begins to recognize more of that work through six new adaptive behavior service codes.

Four of the proposed codes focus on the assessment and treatment of harmful behavior. Codes 97X1X and 97X2X would apply to supporting assessments conducted in an environment customized to the patient’s behavior. The base service would require two technicians, and the second code would account for additional technicians. Codes 97X4X and 97X5X would create a similar structure for the treatment of harmful behavior, again built around at least two technicians, with a separate code for each additional technician.

For clinicians working with high-acuity cases, this could make the staffing requirements of treatment easier to explain. A service designed around multiple technicians may better reflect the reality of cases that cannot be safely or effectively managed by one technician alone.

A more specific code does not automatically mean that payers will authorize the staffing level or reimburse providers enough to support it. The code may describe the service more accurately, but coverage and payment will still determine whether that service is practical to deliver.

Recognizing Work Away From the Patient

Code 97X3X may create the most noticeable change for qualified health care professionals. It would cover certain non-face-to-face activities, including reviewing treatment data and session notes, deciding whether targets or protocols should change, developing or modifying assessment procedures, planning for discharge or transition, and training technicians on revised protocols.

This work already shapes ABA therapy. It is how clinicians determine whether a plan is working and what should happen next. The proposed code does not create a new clinical responsibility. It creates a possible billing pathway for responsibilities clinicians are already performing away from the patient.

If the code is finalized and covered, documentation may need to show a clearer connection between the information reviewed and the clinical decision that followed. A note may need to explain not only that data were analyzed, but whether that analysis led to a new target, a revised protocol, or another change in treatment. That could give clinical oversight a more visible place in the billing record. It could also bring additional documentation expectations. Recognition and administrative simplicity are not the same thing.

A Distinct Code for QHP Treatment

The final new code, 97X6X, would cover face-to-face adaptive behavior treatment with analysis delivered by a physician or other qualified health care professional to one patient. This could provide a more distinct pathway for treatment in which the qualified professional directly delivers and analyzes the service rather than directing technician-delivered care.

Payment Is Still the Open Question

Payment remains one of the largest unanswered questions. CMS proposes to continue carrier pricing for adaptive behavior services through 2027, according to the ABA Coding Coalition’s summary of the proposed rule. This means providers would continue negotiating reimbursement rates with payers instead of receiving one national Medicare payment amount.

The new codes may improve the language used to describe clinical work, but they do not establish what that work is worth. Providers may still need to explain why multiple-technician services, non-face-to-face clinical analysis, and qualified professional treatment require rates that reflect the time and resources involved.

Telehealth Status Undecided

Telehealth creates another uncertainty. CMS proposes to keep the existing ABA codes, 97151 through 97158, on the permanent Medicare telehealth list for 2027. The proposal does not address whether the six new codes would receive the same designation. The ABA Coding Coalition plans to ask CMS to add them.

What Clinicians Can Do Now

The important word is proposed. The rule is subject to a 60-day public comment period, and the final Medicare Physician Fee Schedule is expected in November. The codes will not become official until the American Medical Association publishes them, and providers and payers are being cautioned against changing electronic medical record systems before that happens.

Clinicians can prepare without implementing. They can review which parts of their current work resemble the new descriptions, examine whether their documentation clearly connects data analysis to treatment decisions, and identify the questions they may need to bring to payers.

The question is not simply whether ABA will have six new codes in 2027. The better question is whether payers will cover them, price them adequately, and make them usable in the settings where clinicians need them most. CMS is expected to release the final 2027 rule in November, and the AMA is due to publish the codes in the 2027 CPT Professional Edition later this year.

AT A GLANCE

SOURCES & REFERENCES