ABA session note requirements: what payers actually check

September 2026 · 6 min read · ABAVault Team

A session note does two jobs at once. Clinically, it records what happened with a client. Financially, it is the evidence that the units on a claim were delivered the way the claim says. An auditor reading it months later is asking the second question, and a note that is clinically fine can still fail it.

There is no single national standard. Each payer and each state Medicaid program writes its own list. We read the published requirements of two commercial payers and four Medicaid programs, and the lists overlap more than they differ.

What almost every payer asks for

Who and when. The client's name, the date, and the start and stop time of the service.
Where. The location, or the place of service. BCBS of Texas asks for a written reason when a service happens somewhere unusual.
What was billed. The service or code the note supports. Cigna expects a separate record for each service billed under a CPT code.
What was done. The goals or programs addressed and a description of the intervention, not just a list of targets.
How it went. The client's response and progress. Texas Medicaid asks for the observation data from every session, so the supervising analyst can graph it.
Who delivered it. The rendering provider's name, credentials and signature, and a supervisor's signature where licensure requires one.

The start and stop times on the note have to support the units on the claim. If they do not, the rest of the note cannot rescue it.

Where the lists differ

Who was present. Cigna and Florida Medicaid ask for everyone present, including observers, teachers and other providers. Florida also asks for an explanation when a parent or guardian was not there.

Protocol changes. For sessions where the analyst modifies treatment, Texas Medicaid wants the decision points, the assessment of progress, and any change to the treatment plan written into the note.

Caregiver signatures. BCBS of Texas asks for a parent or caregiver signature for each rendered service, showing the code, provider, place of service, date and times.

Breaks and code changes. Louisiana Medicaid asks for start and stop times recorded at the start of a session, after any break of 12 minutes or longer, and whenever the billing code changes. Its daily log also wants a narrative of what was run and how each person responded, except where a registered line technician delivered the service, where the recorded data is enough on its own.

Supervision. Where supervision is billed, BCBS of Texas expects the note to show both people were present for the whole encounter.

How long notes must be kept

Louisiana Medicaid asks for at least six years. New York Medicaid asks for at least six years and, for minors, until age 22. Your state and your contracts may ask for longer, so the longest applicable period is the one to plan around.

What about a deadline for finishing notes?

You will see 24, 48 and 72 hour deadlines quoted online. None of the six published sources we read sets one. Cigna does expect a time stamp showing when the note was completed, and BCBS of Texas says data may be requested right after a session. Your own payer contracts or your practice policy may set a deadline, and a note finished the same day is simply easier to defend.

Make the note and the claim agree by design. In ABAVault™ the clock in, the clock out, the session note and the billable line all belong to the same session record, so nobody copies times from one system into another. See how on the clinical page.

Sources

This article is general information, not billing or legal advice. Your payer contracts and provider manuals control.