A four-hour ADHD evaluation: the 96136 and 96137 units it supports
Summary
A four-hour ADHD testing block bills as one unit of CPT 96136 plus seven units of 96137, because 96136 covers the first 30 minutes of test administration and scoring and 96137 covers each additional 30 minutes. The four hours counted are administration and scoring by the clinician, not the whole evaluation clock. The base code is reported once for the episode, however many sittings the battery takes.
By Gale Editorial · Updated 2026-09-01. Every figure cited to a dated source. How we write.
What four hours of administration and scoring bills as
A four-hour block of test administration and scoring is one unit of 96136 and seven units of 96137. The base code covers the first 30 minutes of psychological or neuropsychological test administration and scoring by a physician or other qualified health care professional, covering two or more tests by any method 1Ref 1APA Services, Inc. (American Psychological Association) (2019).2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions.The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family.. Every half hour after that is an add-on. 96137 covers each additional 30 minutes and is listed separately in addition to the code for the primary procedure 1Ref 1APA Services, Inc. (American Psychological Association) (2019).2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions.The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family..
APA Services' 2026 coding guide states the same conversion for the case where the qualified professional personally administers and scores the tests: 96136 for the first 30 minutes, 96137 for each additional 30-minute increment 2Ref 2APA Services, Inc. (American Psychological Association) (2026).2026 Psychological and Neuropsychological Testing Billing and Coding Guide.That 96136 is reported for the first 30 minutes and 96137 for each additional 30-minute increment when the qualified professional personally administers and scores; that the first-unit codes 96136 and 96138 are used only once for the episode however many sessions occur, with time cumulating across dates of service; and the guide's listing of testing administered for educational, vocational or other non-clinical purposes among the situations that are not reasonable and necessary.. Two hundred forty minutes is the first thirty plus seven more half hours.
| Administration and scoring time | 96136 units | 96137 units |
|---|---|---|
| 30 minutes | 1 | 0 |
| 1 hour | 1 | 1 |
| 2 hours | 1 | 3 |
| 3 hours | 1 | 5 |
| 4 hours | 1 | 7 |
But the four hours have to be the right four hours. These two codes measure administration and scoring. The evaluation service that surrounds a battery, the integration of data, the interpretation and the report, is coded separately in the same family, under 96130 and its add-on 96131, on its own clock 1Ref 1APA Services, Inc. (American Psychological Association) (2019).2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions.The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family.. An afternoon that runs four hours door to door with an hour of it spent on interpretation is a three-hour administration block.
One base unit for the whole episode
The first 30-minute unit is reported once for the episode, whatever number of sittings the battery takes. APA Services' guide is explicit that the codes for the first unit of test administration and scoring, 96136 and 96138, are to be used only once for the episode 2Ref 2APA Services, Inc. (American Psychological Association) (2026).2026 Psychological and Neuropsychological Testing Billing and Coding Guide.That 96136 is reported for the first 30 minutes and 96137 for each additional 30-minute increment when the qualified professional personally administers and scores; that the first-unit codes 96136 and 96138 are used only once for the episode however many sessions occur, with time cumulating across dates of service; and the guide's listing of testing administered for educational, vocational or other non-clinical purposes among the situations that are not reasonable and necessary.. A battery split over two afternoons still carries one unit of 96136 in total, and the second afternoon's minutes are add-on units.
That makes the split a scheduling decision rather than a billing one. Four hours in one sitting and four hours across two produce the same arithmetic, which is worth knowing when caseload math is deciding the shape of a week, and worth more when the patient in front of you cannot sit still for four hours in a row.
The guide contemplates testing time cumulating across dates of service inside the episode 2Ref 2APA Services, Inc. (American Psychological Association) (2026).2026 Psychological and Neuropsychological Testing Billing and Coding Guide.That 96136 is reported for the first 30 minutes and 96137 for each additional 30-minute increment when the qualified professional personally administers and scores; that the first-unit codes 96136 and 96138 are used only once for the episode however many sessions occur, with time cumulating across dates of service; and the guide's listing of testing administered for educational, vocational or other non-clinical purposes among the situations that are not reasonable and necessary., so the total that drives the unit count is the total the whole evaluation spent on administration and scoring.
The published per-day ceilings on these two codes
Medicare publishes a per-day unit ceiling for each of these codes, and seven add-on units sits under it. A Medically Unlikely Edit (MUE) is the maximum units of service reported for a code on the vast majority of appropriately reported claims by the same provider for the same beneficiary on the same date of service 3Ref 3Centers for Medicare & Medicaid Services (2026).Medically Unlikely Edits.The definition of a Medically Unlikely Edit as the maximum units of service reported for a code on the vast majority of appropriately reported claims by the same provider for the same beneficiary on the same date of service, and that not every code carries one.. In the Practitioner Services MUE table effective October 1, 2026, 96136 carries a value of 1 and 96137 carries 11 4Ref 4Centers for Medicare & Medicaid Services (2026).Practitioner Services MUE Table (MCR_MUE_PractitionerServices_Eff_10-01-2026).The published per-day values and adjudication indicators for these two codes in the table effective October 1, 2026: 96136 at 1 as a date of service policy edit and 96137 at 11 as a date of service clinical edit, together with the quarterly revision cycle that dates them..
Each edit also carries an adjudication indicator, and the two differ in a way that decides what happens to a twelfth unit of 96137. The edit on 96136 is a date of service edit sourced to policy, which matches a descriptor that has only a first 30 minutes to describe. The edit on 96137 is a clinical date of service edit 4Ref 4Centers for Medicare & Medicaid Services (2026).Practitioner Services MUE Table (MCR_MUE_PractitionerServices_Eff_10-01-2026).The published per-day values and adjudication indicators for these two codes in the table effective October 1, 2026: 96136 at 1 as a date of service policy edit and 96137 at 11 as a date of service clinical edit, together with the quarterly revision cycle that dates them.. Under that indicator, units above the published value are treated as possible but medically highly unlikely, and a contractor with evidence that the units were provided, correctly coded and medically necessary may bypass the edit in processing, reopening, redetermination or on appeal 5Ref 5Centers for Medicare & Medicaid Services (2026).National Correct Coding Initiative Policy Manual for Medicare Services, Chapter I — General Correct Coding Policies.What the clinical date-of-service adjudication indicator means, that units above the value are treated as possible but medically highly unlikely and may be bypassed by a contractor holding evidence in processing, reopening, redetermination or on appeal, and that an MUE does not establish coverage or medical necessity..
Three limits ride along with those numbers. Not every code carries an MUE at all 3Ref 3Centers for Medicare & Medicaid Services (2026).Medically Unlikely Edits.The definition of a Medically Unlikely Edit as the maximum units of service reported for a code on the vast majority of appropriately reported claims by the same provider for the same beneficiary on the same date of service, and that not every code carries one.. CMS revises the tables quarterly, so the values above are the ones effective October 1, 2026, and the current quarter's table is the one that adjudicates your claim 4Ref 4Centers for Medicare & Medicaid Services (2026).Practitioner Services MUE Table (MCR_MUE_PractitionerServices_Eff_10-01-2026).The published per-day values and adjudication indicators for these two codes in the table effective October 1, 2026: 96136 at 1 as a date of service policy edit and 96137 at 11 as a date of service clinical edit, together with the quarterly revision cycle that dates them.. An MUE is a units ceiling rather than a coverage rule, so clearing it establishes nothing about medical necessity 5Ref 5Centers for Medicare & Medicaid Services (2026).National Correct Coding Initiative Policy Manual for Medicare Services, Chapter I — General Correct Coding Policies.What the clinical date-of-service adjudication indicator means, that units above the value are treated as possible but medically highly unlikely and may be bypassed by a contractor holding evidence in processing, reopening, redetermination or on appeal, and that an MUE does not establish coverage or medical necessity..
These are also Medicare Part B edits. A commercial plan sets its own unit limits, and the contract you signed with it controls.
A split battery leaves one question worth a call before the claim goes out. The base code is capped at one unit per date of service, while the episode rule speaks to the whole evaluation, so which date carries that base unit is a question for the payer.
Why a clean unit count still gets denied
Because units and coverage answer different questions. The arithmetic above can be perfect and the claim can still fail on medical necessity, which for an ADHD battery is where most of them fail. APA Services' 2026 guide lists testing administered for educational, vocational or other non-clinical purposes that do not inform medical or health management among the situations in which psychological and neuropsychological testing is not considered reasonable and necessary 2Ref 2APA Services, Inc. (American Psychological Association) (2026).2026 Psychological and Neuropsychological Testing Billing and Coding Guide.That 96136 is reported for the first 30 minutes and 96137 for each additional 30-minute increment when the qualified professional personally administers and scores; that the first-unit codes 96136 and 96138 are used only once for the episode however many sessions occur, with time cumulating across dates of service; and the guide's listing of testing administered for educational, vocational or other non-clinical purposes among the situations that are not reasonable and necessary..
That is the hinge under this referral type. A battery ordered because a school, a college disability office or an accommodation form asked for documentation is the case the exclusion describes. The same hours ordered to work up a suspected condition that will change how the patient is managed are a different claim entirely.
Coverage detail comes from your own Medicare Administrative Contractor. Novitas Solutions, whose jurisdiction takes in Colorado, New Mexico, Oklahoma and Texas, states in LCD L35101 that testing conducted when no mental illness or disability is suspected would be considered screening and would not be covered by Medicare, and that each test in a battery has to be medically necessary in its own right 6Ref 6Novitas Solutions, Inc. (2024).Local Coverage Determination (LCD): Psychiatric Codes (L35101).One Medicare Administrative Contractor's coverage policy, cited as that contractor's and not as a national rule: that testing with no suspected mental illness or disability is screening and not covered, that each test in a battery must itself be medically necessary, the record contents expected for testing, and the observation that a typical battery may require 7 to 10 hours.. Find your own contractor's policy by searching the Medicare Coverage Database by code and state, which returns the LCD and the local coverage articles carrying the billing and coding detail.
The same LCD observes that a typical battery may require 7 to 10 hours including administration, scoring and interpretation 6Ref 6Novitas Solutions, Inc. (2024).Local Coverage Determination (LCD): Psychiatric Codes (L35101).One Medicare Administrative Contractor's coverage policy, cited as that contractor's and not as a national rule: that testing with no suspected mental illness or disability is screening and not covered, that each test in a battery must itself be medically necessary, the record contents expected for testing, and the observation that a typical battery may require 7 to 10 hours.. That is one contractor's observation about batteries in general. It is not a national benchmark and it is not a requirement your four hours falls short of.
What the record has to carry for eight units
Time is the billable unit here, so the record has to show the time. Eight units asserts that four hours of administration and scoring took place, and the note is where a reviewer either sees those minutes or does not. Novitas' LCD sets out what it expects a testing record to contain, alongside the requirement that each test in the battery be medically necessary in its own right 6Ref 6Novitas Solutions, Inc. (2024).Local Coverage Determination (LCD): Psychiatric Codes (L35101).One Medicare Administrative Contractor's coverage policy, cited as that contractor's and not as a national rule: that testing with no suspected mental illness or disability is screening and not covered, that each test in a battery must itself be medically necessary, the record contents expected for testing, and the observation that a typical battery may require 7 to 10 hours..
A common convention among practices that come through a testing audit intact: name each instrument administered, record who administered and who scored it, log administration and scoring minutes separately from interpretation and report time, and write down the referral question and the clinical suspicion that made the battery reasonable at the time it was ordered.
What makes a clinical note defensible is the same here as anywhere else. It is written by the person who did the work, it is written close to the work, and it says what happened.
Where the count goes wrong
Three places, and the first is rounding. 96137 is defined in whole additional 30-minute increments 1Ref 1APA Services, Inc. (American Psychological Association) (2019).2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions.The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family., so a battery that stops at three hours and fifty minutes leaves a partial increment behind. The increments alone do not settle how a partial one is handled. CPT's own time rules govern that, and they are worth reading before a claim rounds anything up.
The second is who may report the service. The descriptor names a physician or other qualified health care professional 1Ref 1APA Services, Inc. (American Psychological Association) (2019).2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions.The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family.. The descriptor does not say which licences a given plan treats as qualified, or what your own board's scope rule allows you to administer and score. Both questions are worth settling before the first battery is scheduled, from the plan's own policy and the board's rule.
The third is reporting 96137 on its own. It is an add-on code, listed separately in addition to the code for the primary procedure 1Ref 1APA Services, Inc. (American Psychological Association) (2019).2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions.The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family., so it has nothing to attach to when the base unit is missing from the claim.
Two lookups decide the claim before it goes out: the current quarter's MUE table for the code, and your own contractor's coverage policy.
Common questions
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- 1.APA Services, Inc. (American Psychological Association) (2019). 2019 Psychological and Neuropsychological Testing CPT Codes & Descriptions. APA Services, Inc.. link ✓The CPT descriptors and time increments for the two codes: 96136 as the first 30 minutes of test administration and scoring by a physician or other qualified health care professional for two or more tests, any method, and 96137 as each additional 30 minutes listed separately in addition to the code for the primary procedure; also that 96130 and 96131 are separate evaluation-service codes in the same family.
- 2.APA Services, Inc. (American Psychological Association) (2026). 2026 Psychological and Neuropsychological Testing Billing and Coding Guide. APA Services, Inc.. link ✓That 96136 is reported for the first 30 minutes and 96137 for each additional 30-minute increment when the qualified professional personally administers and scores; that the first-unit codes 96136 and 96138 are used only once for the episode however many sessions occur, with time cumulating across dates of service; and the guide's listing of testing administered for educational, vocational or other non-clinical purposes among the situations that are not reasonable and necessary.
- 3.Centers for Medicare & Medicaid Services (2026). Medically Unlikely Edits. Centers for Medicare & Medicaid Services (CMS). link ✓The definition of a Medically Unlikely Edit as the maximum units of service reported for a code on the vast majority of appropriately reported claims by the same provider for the same beneficiary on the same date of service, and that not every code carries one.
- 4.Centers for Medicare & Medicaid Services (2026). Practitioner Services MUE Table (MCR_MUE_PractitionerServices_Eff_10-01-2026). Centers for Medicare & Medicaid Services, Medicare NCCI. link ✓The published per-day values and adjudication indicators for these two codes in the table effective October 1, 2026: 96136 at 1 as a date of service policy edit and 96137 at 11 as a date of service clinical edit, together with the quarterly revision cycle that dates them.
- 5.Centers for Medicare & Medicaid Services (2026). National Correct Coding Initiative Policy Manual for Medicare Services, Chapter I — General Correct Coding Policies. Centers for Medicare & Medicaid Services. link ✓What the clinical date-of-service adjudication indicator means, that units above the value are treated as possible but medically highly unlikely and may be bypassed by a contractor holding evidence in processing, reopening, redetermination or on appeal, and that an MUE does not establish coverage or medical necessity.
- 6.Novitas Solutions, Inc. (2024). Local Coverage Determination (LCD): Psychiatric Codes (L35101). CMS Medicare Coverage Database. link ✓One Medicare Administrative Contractor's coverage policy, cited as that contractor's and not as a national rule: that testing with no suspected mental illness or disability is screening and not covered, that each test in a battery must itself be medically necessary, the record contents expected for testing, and the observation that a typical battery may require 7 to 10 hours.
https://www.gale.care/for-providers/pq-adhd-evaluation-96136-96137-units · 6 sources. Competitor details are cited to dated public sources and maintained as they change; figures are estimates, not commitments. Synthetic demonstration.