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CPT 97153 and 97155 Concurrent Documentation: A BCBA's Complete Guide
- Veronica Cruz
- 4 hours ago
- 5 min read
A BCBA steps into a session an RBT is already running. She spots a prompting sequence that isn't landing, tries a new one right there, and hands the RBT the updated approach to keep going. Same 15-minute block. Two providers on the floor. Two codes on the claim.
The clinical work is fine. The claim is where things break.
CPT 97153 and 97155 can be billed at the same time. The problem is that payers now audit these claims closely, and the denial almost never comes from the treatment. It comes from the note. Here's what concurrent 97153 and 97155 documentation actually has to say, what payers expect to see, and what will get pulled back on retrospective review.
CPT 97153 vs. CPT 97155: What’s the Difference
Both codes sit in the ABA CPT codes family for adaptive behavior treatment. Both bill in 15-minute units. Both require the client to be in the room. What separates them is who's doing the work.
CPT 97153 is adaptive behavior treatment by protocol. It is usually provided by a technician, such as an RBT, under the direction of a physician or QHP. The technician follows the treatment plan that is already in place and does not make live changes to the protocol during the session. The service is provided face-to-face, one client at a time.
CPT 97155 is used when a physician or QHP provides adaptive behavior treatment and makes changes to the treatment protocol. The clinician reviews how the client is responding, tests the changes, and may guide the technician during the session.
97153 is for carrying out the treatment plan. 97155 is for when the clinician changes or adjusts the plan during treatment.
The 97155 CPT code also allows the physician or QHP to direct a technician at the same time. This is why concurrent 97153 and 97155 reporting can be appropriate when the services and documentation support it.
Can you bill CPT 97153 and 97155 at the same time
Yes, under specific conditions. Four have to hold at once.
Two different providers deliver the services (RBT for 97153, BCBA or QHP for 97155)
The RBT is actively running the treatment protocol during the overlap
The BCBA is doing real protocol-modification work, not routine oversight
The client is in the room for both services
Hit all four, and the claim is defensible. Miss one, and it isn't. The 97155 descriptor names the simultaneous direction of a technician as part of the code, so this isn't a workaround. It's how the code was written.
Concurrent doesn't mean interchangeable. The RBT's 97153 work and the BCBA's 97155 work have to read as different services in the chart. Notes that say the same thing on both sides get flagged as duplicate billing.
How to Document Concurrent 97153 and 97155 Services
When a payer permits both codes during the same period, the note should make two separate services easy to see. A reviewer should not have to guess what the RBT did, what the BCBA did, or when the overlap occurred.
At a minimum, document:
Date and place of service
Exact start and stop time for each provider
Provider names, roles, and credentials
Who was present during the session
Treatment goals addressed under CPT 97153
The established treatment steps used by the technician
Data or observations that led to BCBA review
The part of the protocol the BCBA evaluated, changed, or tested
Any live direction or demonstration given to the technician as part of 97155
The client's response after the change or test
The next treatment step
Required provider signatures and credentials
A payer may require additional information. Texas Medicaid, for example, requires 97153 treatment notes to include the service date, start and stop times, goals addressed, a summary of the ABA services delivered, direct observation data, and the rendering provider's signature.
For CPT 97155, Texas Medicaid adds protocol-modification decision points, assessment of progress or lack of progress, and treatment-plan information such as updated goals. That is a useful example of how a payer may expect the BCBA's service to be distinguished from ordinary supervision.
A real-world example of CPT 97153 and 97155 concurrent documentation
A 6-year-old client is working on mand training. The RBT provides CPT 97153 during the session and follows the treatment plan already in place.
About halfway through, the BCBA joins the session and reviews the live data. Something stands out. The client's responses, which had been around 80%, have dropped sharply.
The BCBA watches a few trials, identifies prompt dependence, and changes the prompting method from full physical prompts to partial gestural prompts. After testing the change, the client's responses began to improve. The BCBA then instructs the RBT to continue using the updated procedure.
This is where the difference between the codes becomes clear:
97153 covers the RBT carrying out the treatment plan.
97155 covers the BCBA reviewing data, making clinical decisions, changing the protocol, and directing the RBT.
The documentation should show what changed, why it changed, and how the client responded. Notes that only say "observed session" or "provided supervision" usually do not support CPT 97155.
Five Reasons Concurrent 97153 and 97155 Claims Get Denied
Straight from real payer audit patterns.
1. Overlap language that reads as double-billing. Both notes describe the same activity. Fix by rewriting each note to its own provider's actual role.
2. Supervision language dressed up as modification. The 97155 note says "observed and coached." Fix by naming the specific change made and the client response to it.
3. Missing rationale for the modification. The change is in the note. The reason isn't. Fix by tying the modification to observed data or client behavior.
4. No client response data attached to the change. The chart shows the tweak but not what happened after. Fix by capturing at least one trial after the modification.
5. Same-provider concurrent billing. One BCBA is billing both codes for the same time window. Fix by not doing this. A single QHP can't report 97153 and 97155 concurrently. That's a coding rule, not a payer preference.
When 97153 and 97155 should not be billed concurrently
Five situations where concurrent billing doesn't apply, even when the codes look tempting.
The same provider performs both services
The client is not present for the 97155 work
The BCBA delivers routine supervision with no real protocol modification
The BCBA reviews the session but makes no clinical change
The payer prohibits concurrent reimbursement in policy
The last one keeps shifting. Vermont Medicaid changed its policy on January 1, 2026 to stop paying concurrent 97153 and 97155. Other states have raised similar concerns. CPT rules and payer reimbursement rules are separate. Both have to clear before the claim pays.
FAQ
1.What are the documentation requirements for the 97155 CPT code?
For 97155, document the session date, start and end times, client presence, reason for protocol review, specific changes made, BCBA actions, client response, next step, and follow-up plan.
2.Can you provide some examples of concurrent therapy documentation?
The RBT continues the approved treatment plan while the BCBA observes a behavior change, adjusts prompting or reinforcement, tests the revision, records the response, and documents overlapping times clearly.
3.What are the billing guidelines for CPT code 97153 in ABA therapy?
CPT 97153 covers one-to-one ABA treatment delivered under an established plan. Bill in 15-minute units, document exact time and treatment provided, verify authorization, provider eligibility, modifiers, and payer-specific rules carefully.
