CPT code 96131 – Psychological testing evaluation, each additional hour

Key takeaways

CPT code 96131 bills each additional hour of psychological testing evaluation by a physician or other qualified health care professional.

It is an add-on code, reported only with 96130 for the first hour on the same claim.

A unit of 96131 is reportable once more than 30 minutes of an additional hour is spent.

Neuropsychological testing evaluation uses 96132 and 96133, and test administration and scoring uses 96136 to 96139.

The 2026 national Medicare rate is about $86.51 per unit in the office setting.

CPT code 96131 pays for each extra hour of evaluation

CPT code 96131 is the add-on code for each additional hour of psychological testing evaluation by a physician or other qualified health care professional (QHP). It follows 96130, which covers the first hour of the same service.

The official descriptor names six parts of the service, all billed by the physician or QHP:

• Integration of patient data
• Interpretation of standardized test results and clinical data
• Clinical decision making
• Treatment planning
• The report
• Interactive feedback to the patient, family members or caregivers, when performed

The descriptor ends “each additional hour”, and the code is listed separately in addition to the primary procedure. It belongs to the American Medical Association’s CPT code set, in the Medicine section under Central Nervous System Assessments/Tests (96105-96146).

Three rules apply to every 96131 claim:

• Parent code required. 96131 is never reported alone. It must appear with CPT code 96130 on the same claim, from the same provider.
• Time-based units. The first hour goes to 96130. Each further hour goes to 96131, and a unit counts once more than 30 minutes of that hour is spent.
• Evaluation work only. 96131 pays for the clinical thinking that follows testing. Administering and scoring the tests is billed separately under 96136 to 96139.

96131 covers interpretation, not test administration

The evaluation codes pay for interpreting results, not for producing them. Time spent giving or scoring tests never counts toward 96130 or 96131, even when the same psychologist does both.

96131 pairs with 96130, never with 96132

Since 2019, CPT has split testing into two kinds of work. Evaluation codes pay for interpretation and reporting, while administration codes pay for giving and scoring tests. Psychological and neuropsychological evaluation then have separate code pairs.

The most common mix-up is billing 96133 for extra psychological evaluation time. 96133 is the add-on for neuropsychological evaluation and pairs only with 96132. If the work was a psychological evaluation, the extra hours go to 96131.

The clinical question decides which pair you use. A psychological evaluation looks at personality, emotional functioning, mood or psychopathology. A neuropsychological evaluation looks at how brain function shapes cognition and behavior, and is covered in our guide to CPT code 96132.

Licensed psychologists bill most 96131 claims

Physicians and other qualified health care professionals can bill 96131 when psychological testing falls within their state license. In practice, licensed psychologists bill most of these claims, with psychiatrists and some neurologists also reporting them.

Payers add their own conditions. Some limit testing codes to doctoral-level providers, and some credential providers for testing separately from therapy. Confirm that each provider is credentialed for testing with the plan before the first session.

• Technician time. A technician can administer and score tests under 96138 and 96139. The evaluation itself, billed under 96130 and 96131, stays with the physician or QHP.
• Incident-to billing. Rules for billing testing incident-to a supervising physician vary by payer. Check the payer’s policy with your compliance lead before using it.

How a 96131 claim moves from session to payment

Billing 96131 correctly comes down to counting evaluation time accurately. Walk each claim through these six steps.

1. Report 96130 on the same claim. 96131 carries the add-on symbol in the CPT book. A claim with 96131 and no 96130 is rejected before it reaches adjudication.
2. Total the evaluation time. Add up interpretation, integration, report writing and feedback time. Leave out any time spent administering or scoring tests.
3. Calculate units. 96130 needs at least 31 minutes of evaluation time. Each later hour adds one unit of 96131 once more than 30 minutes of it is spent.
4. Add supporting ICD-10 codes. The diagnosis must explain why testing was needed. Common examples are in the table further down.
5. Check authorization before testing starts. Many commercial plans approve a set number of testing hours. An authorization that covers only 96130 leaves the 96131 units exposed.
6. Submit and read the remittance. When 96130 pays and 96131 denies, the cause is usually a unit cap or an authorization limit.

Because the thresholds sit at fixed points on the clock, total minutes map straight to units.

A few payers pay only completed hours, so check the policy before you count a partial one. Evaluation work also often spans several days, from scoring review to the feedback session. Many payers expect the codes on the date the evaluation is completed. Confirming that rule up front keeps clean claims going out the first time.

The diagnosis has to explain why testing was needed

The diagnosis on a 96131 claim must support the need for psychological testing. Psychological evaluation is often used to clarify a diagnosis, so mood, anxiety and developmental codes are as common as cognitive ones.

Choose the code that matches the documented presentation most closely. Our library of ICD-10-CM codes lists the full descriptor for each one. When cognition is the main question, the evaluation may belong under 96132 and 96133 instead.

Medicare pays about $86.51 per 96131 unit in 2026

Medicare pays 96131 through the Medicare Physician Fee Schedule (MPFS). The 2026 national rate is about $86.51 per unit in the office, up from about $82.81 in 2025.

These figures come from the CMS 2026 national RVU file, at a conversion factor of $33.4009. The work RVU is the same in both settings. The difference comes from practice expense, which is lower when the facility carries the overhead.

Your payment will differ by locality. Use the CMS Physician Fee Schedule lookup tool to find your area’s rate. Commercial rates are negotiated separately, so check each contract.

Prior authorization caps your 96131 units

Original Medicare does not usually require prior authorization for psychological testing, but Medicare Advantage and commercial plans often do. Requirements differ by plan, so start the prior authorization process before the first session.

A request for an evaluation that will include 96131 usually asks for:

• The referring provider’s name, NPI and the clinical question behind the referral
• The working diagnosis or differential, with ICD-10 codes
• The planned test battery and estimated evaluation hours, which set the expected 96131 units
• Treatment history and any earlier testing results
• Records that support the clinical question

The approved hours cap the payable units of 96131. If an evaluation runs longer than approved, request an amendment before you bill the extra time.

Your documentation has to prove the evaluation time

Time is the first element auditors check on a 96131 claim. If the record cannot show the evaluation time, each unit of 96131 is open to recoupment.

Following medical billing compliance practice, the record for a 96131 claim should contain:

• Total evaluation time, kept apart from administration and scoring time
• The referral question and why the evaluation needed more than one hour
• The tests used and the reason for each
• An interpretation narrative showing how results and clinical data were integrated
• Diagnostic impressions and a treatment plan, with the ICD-10 codes they support
• A signed report with the completion date and the provider’s credentials
• A feedback note, when feedback was given to the patient, family or caregivers

Before you submit: A 96131 claim checklist

Run through these checks on every testing claim before it leaves the practice.

• 96130 x1 sits on the same claim, from the same rendering provider.
• Evaluation minutes are totaled apart from administration and scoring minutes.
• Each 96131 unit passes the 30-minute midpoint of its hour.
• The date of service follows the payer’s rule, usually the day the evaluation was completed.
• The ICD-10 code matches the referral question in the report.
• The authorized hours cover every 96131 unit on the claim.
• The signed report and any feedback note are in the chart.

Seven mistakes that get 96131 claims denied

Most 96131 denials trace back to a short list of preventable errors. Catching them before submission costs far less than working denials afterward.

1. 96130 missing from the claim. An add-on without its primary code is rejected automatically.
2. Wrong add-on code. Pairing 96133 with 96130, or 96131 with 96132, mixes the psychological and neuropsychological pairs. Payer edits deny the mismatched line.
3. Administration time counted as evaluation. Testing and scoring time belongs to 96136 to 96139. Counting it toward 96131 overstates the units.
4. Time not documented. A note reading “evaluation took about three hours” with no breakdown rarely survives a record review.
5. No prior authorization. Plans that require it deny claims without an active authorization number.
6. Weak medical necessity. The diagnosis and referral question must explain why testing was needed and why it took more than an hour.
7. Unit limits exceeded. Some plans cap 96131 units per date of service or per authorization. Check the plan policy before billing several units.

Two example claims, from minutes to claim lines

Two scenarios show how evaluation time turns into claim lines. In both, the tests were administered separately and billed under the administration codes.

Scenario A: 2.5 hours of psychological testing evaluation

A psychologist evaluates an adult referred for possible ADHD with co-occurring anxiety. Integrating the results, writing the report and giving feedback take 2 hours and 30 minutes in total.

Scenario B: 3 hours 40 minutes of psychological testing evaluation

A psychologist evaluates a teenager for autism spectrum disorder and depression. The evaluation work totals 3 hours and 40 minutes.

Here the 40 minutes of the fourth hour pass the midpoint, so they earn the third unit of 96131.

How claims management software keeps 96131 claims clean

Most 96131 errors creep in when someone retypes a testing record into a claim form. Pabau, the practice management platform we build, includes claims management software that prepares the claim from the patient record instead.

• Pre-filled claims. The claim form fills from the patient record, so demographics, insurance and provider details carry over without retyping.
• Code lookup. Built-in ICD-10 and CPT libraries let billing staff search for 96130, 96131 and the diagnosis in the official lists.
• Required-field checks. The claim cannot go out until required fields, such as the authorization number, are complete.
• Clearinghouse submission. US practices send claims through Claim.MD, with eligibility checks, ERA posting and claim status tracking in the same place.

Your team still decides the units and the code pair. Pabau removes the retyping and status chasing around that decision, so staff can spend their time on the calls that need judgment.

Send cleaner psychological testing claims

Pabau pre-fills claims from the patient record, checks required fields before submission and tracks each claim through Claim.MD. Your team spends less time fixing rejected testing claims.

Book a demo

Conclusion

Getting 96131 paid starts with naming the evaluation correctly. A psychological evaluation pairs 96130 with 96131, while a neuropsychological one pairs 96132 with 96133. Payer edits catch a mixed pair faster than any other error.

After that, the claim rests on the clock. Log evaluation minutes apart from testing minutes, and count a 96131 unit only past the 30-minute mark. Then confirm the authorized hours before the session, not after the report is written.

If your practice runs psychological testing every week, book a demo to see how Pabau pre-fills and tracks each testing claim from the patient record.

Continue your research

Billing the testing time too? CPT code 96136 covers test administration and scoring by a physician or QHP, the work 96131 leaves out.

Starting with a diagnostic interview? CPT code 90791 explains how the psychiatric diagnostic evaluation is billed before testing begins.

Want to understand how clearinghouse claims processing works? How the Claim.MD clearinghouse works explains payer routing, real-time eligibility, and ERA handling for US practices.

Dealing with recurring claim rejections? Denial codes in medical billing covers the most common CARC denial reason codes and how to respond to each one.

Evaluation running across several weeks? Timely filing limits sets out how long payers give you to submit the claim after the date of service.

Frequently asked questions