Billing for Psychological Testing: Codes, Documentation & Authorization
Overview
Billing for Psychological Testing: Codes, Documentation & Authorization
Psychological testing represents a significant revenue opportunity for qualified providers—but also one of the most complex areas of mental health billing. Testing codes changed substantially in 2019, payers have specific authorization requirements, and documentation standards are exacting.
Key takeaways
- Billing for Psychological Testing: Codes, Documentation & Authorization Psychological testing represents a significant revenue opportunity for qualified providers—but also one of the most complex areas of mental health billing.
- Testing codes changed substantially in 2019, payers have specific authorization requirements, and documentation standards are exacting.
- This comprehensive guide covers everything you need to know to bill psychological and neuropsychological testing accurately and maximize reimbursement.
- Understanding Psychological Testing Codes The 2019 Code Changes Prior to 2019, psychological testing was billed using codes 96101-96103.
- These were replaced with a new code structure that distinguishes between: Evaluation services (clinician work) Administration and scoring (technical work) Test interpretation and report writing (clinician work) The new codes also differentiate psychological testing from neuropsychological testing.
Details
This comprehensive guide covers everything you need to know to bill psychological and neuropsychological testing accurately and maximize reimbursement.
Understanding Psychological Testing Codes
The 2019 Code Changes
Prior to 2019, psychological testing was billed using codes 96101-96103. These were replaced with a new code structure that distinguishes between:Evaluation services (clinician work)Administration and scoring (technical work)Test interpretation and report writing (clinician work)
The new codes also differentiate psychological testing from neuropsychological testing.
Code Categories Overview
Key Distinctions
Psychological vs. Neuropsychological Testing:
Psychological testing (96130-96131, 96136-96139):Personality assessmentEmotional/behavioral functioningIntellectual assessment (IQ testing)Achievement testingProjective testing
Neuropsychological testing (96132-96133, 96136-96139):Brain-behavior relationshipsCognitive domain assessment (memory, attention, executive function)Evaluation for neurological conditionsPre/post surgical cognitive assessment
The distinction matters: Neuropsychological testing codes generally reimburse at higher rates and may have different authorization requirements.
Detailed Code Descriptions
Evaluation Services Codes
These codes cover the clinical work: test selection, interpretation, integration, and report writing.
96130 - Psychological Testing Evaluation Services, First Hour
Description: Psychological testing evaluation services by physician or qualified health care professional, including integration of patient data, interpretation of standardized test results and clinical data, clinical decision making, treatment planning and report, and interactive feedback to the patient; first hour
Use when: Billing for the first hour of evaluation services for psychological (non-neuropsych) testing
What it includes:Review of records and referral questionTest selectionInterpretation of test resultsIntegration with clinical dataClinical decision makingReport preparationInteractive feedback session
Time requirement: First 60 minutes of evaluation services
2026 Medicare rate: Approximately $152 (non-facility)
96131 - Psychological Testing Evaluation Services, Additional Hour
Description: Each additional hour of psychological testing evaluation services
Use when: Evaluation services exceed 60 minutes
Time requirement: Each additional 60 minutes (use for 31+ additional minutes)
2026 Medicare rate: Approximately $118 per hour
96132 - Neuropsychological Testing Evaluation Services, First Hour
Description: Same as 96130 but for neuropsychological testing
Use when: First hour of evaluation services for neuropsychological assessment
2026 Medicare rate: Approximately $163 (non-facility)
96133 - Neuropsychological Testing Evaluation Services, Additional Hour
Description: Each additional hour of neuropsychological testing evaluation services
2026 Medicare rate: Approximately $126 per hour
Administration and Scoring Codes
These codes cover test administration time and scoring.
96136 - Psychological or Neuropsychological Test Administration by Physician
Description: Psychological or neuropsychological test administration and scoring by physician or other qualified health care professional, two or more tests, any method; first 30 minutes
Use when: Psychologist directly administers and scores tests (first 30 minutes)
What counts as administration time:Face-to-face test administrationStandardized instructionsTiming and recording responsesScoring
What does NOT count:Test selection (evaluation services)Interpretation (evaluation services)Report writing (evaluation services)Clerical scoring by technician
2026 Medicare rate: Approximately $62
96137 - Test Administration by Physician, Additional 30 Minutes
Description: Each additional 30 minutes of administration by physician
Use when: Physician-administered testing exceeds 30 minutes
2026 Medicare rate: Approximately $59 per 30 minutes
96138 - Psychological or Neuropsychological Test Administration by Technician
Description: Psychological or neuropsychological test administration and scoring by technician, two or more tests, any method; first 30 minutes
Use when: Qualified technician administers tests under psychologist supervision (first 30 minutes)
Supervision requirements:Technician must be trained and competentPsychologist maintains responsibilitySupervision must meet state and payer requirementsDocument supervisory relationship
2026 Medicare rate: Approximately $34
96139 - Test Administration by Technician, Additional 30 Minutes
Description: Each additional 30 minutes of technician administration
2026 Medicare rate: Approximately $34 per 30 minutes
Automated Testing Code
96146 - Psychological or neuropsychological test administration, with single automated, standardized instrument
Use when: Using computer-administered tests that require minimal clinician involvement
Examples: Some computerized continuous performance tests, automated screening tools
Note: Cannot be billed with 96136-96139 for same service
Billing Scenarios and Examples
Scenario 1: Basic Psychological Evaluation
Referral: Assess for depression and anxiety; rule out ADHD
Testing battery:Clinical interview (not separately billable—part of evaluation)MMPI-2: 90 minutes administrationBeck Depression Inventory: 10 minutesBeck Anxiety Inventory: 10 minutesConners Adult ADHD Rating Scale: 15 minutesWAIS-IV (selected subtests): 60 minutes
Time breakdown:Test administration (by psychologist): 185 minutes = 3 hours 5 minutesEvaluation services: 3 hours (review, interpretation, report, feedback)
Billing:96130 x 1 (first hour evaluation)96131 x 2 (additional 2 hours evaluation)96136 x 1 (first 30 min administration)96137 x 5 (additional 150 min = 5 units)
Scenario 2: Neuropsychological Evaluation with Technician
Referral: Assess cognitive functioning post-stroke
Testing battery:Administered by technician (6 hours): Memory tests, attention tests, processing speed, executive function, language, motorPsychologist evaluation services (5 hours): Review, interpretation, integration, report, feedback
Billing:96132 x 1 (first hour neuro evaluation)96133 x 4 (additional 4 hours evaluation)96138 x 1 (first 30 min tech administration)96139 x 11 (additional 330 min = 11 units)
Scenario 3: Brief Testing Added to Therapy
Context: Client in ongoing therapy; therapist administers PHQ-9, GAD-7, and an achievement screen
Important: Brief, routine outcome measures administered as part of therapy are generally not separately billable. Standardized psychological tests administered for diagnostic purposes may be billable.
If billable (substantial testing for diagnostic purpose):96136 x 1 (if 30+ min of standardized testing)
If not billable: Routine outcome monitoring is part of therapy services
Documentation Requirements
Pre-Authorization Documentation
Most payers require authorization before psychological testing. Your request should include:
Required elements:Referral question and sourceClinical indication/diagnosisWhy testing is medically necessaryProposed test battery with rationaleEstimated hours (evaluation + administration)Provider credentialsAnticipated diagnoses/questions to be answered
Sample authorization request language:"Patient is a 45-year-old male referred for neuropsychological evaluation to assess cognitive functioning and differential diagnosis of cognitive decline vs. depression. Patient presents with 6-month history of memory complaints, word-finding difficulties, and executive dysfunction impacting occupational functioning. Medical workup has been unrevealing. Testing is medically necessary to: (1) characterize cognitive profile, (2) establish baseline for monitoring, (3) inform treatment planning. Requested: 4 hours evaluation services (96132 x 1, 96133 x 3), 5 hours technician administration (96138 x 1, 96139 x 9)."
Report Documentation Requirements
Your testing report must support the services billed.
Report should include:
Background/Referral:Referral source and questionRelevant historyPrevious testingCurrent symptoms
Behavioral observations:Engagement and effortObservable behaviors during testingValidity considerations
Test results:Tests administered (full names)Scores with normative comparisonInterpretation of each testPattern analysis
Integration and Summary:Synthesis of findingsDiagnostic conclusionsAnswered referral questions
Recommendations:Treatment recommendationsAccommodations if applicableFollow-up testing if indicated
Time documentation:Total evaluation services timeTotal administration timeBreakdown by who administered
Time Documentation
Accurate time tracking is essential. Document:Date(s) of serviceStart and stop times (or total time) for each componentWho performed each service (psychologist vs. technician)Specific tests administered with time per test
Sample time log:
Prior Authorization Strategies
When Authorization Is Required
Almost always required for:Neuropsychological testing batteriesComprehensive psychological evaluationsTesting exceeding 2-3 hours
May not require authorization:Brief screening measuresSingle-test administrationsSome Medicare plans
Getting Authorization Approved
Before requesting:Verify benefits and authorization requirementsKnow payer's approved hour limitsUnderstand which providers/credentials are coveredHave clinical documentation ready
In your request:Be specific about clinical necessityConnect testing to treatment planningExplain why each test is neededJustify the time requestedInclude credentials of all providers
Common denial reasons and responses:
For comprehensive authorization guidance, see our prior authorization guide.
Peer-to-Peer Reviews
When authorization is denied:Request peer-to-peer review immediatelyPrepare your clinical rationaleHave test battery and justification readyKnow the specific criteria the payer usesBe professional but assertiveDocument the conversation
Payer-Specific Considerations
Medicare
Coverage:Covers psychological and neuropsychological testing when medically necessaryMust be performed by qualified provider (psychologist, in most cases)No specific hour limits, but must be reasonable
Documentation:Clear medical necessityComprehensive reportTime documentationPhysician order/referral recommended
Technician billing:Technician must meet "auxiliary personnel" requirementsDirect supervision requiredPsychologist must be on-site
Medicare Advantage: Check specific plan requirements; may have different rules
Medicaid
Varies significantly by state:Some states cover psychological testing extensivelyOthers have strict limitationsOften requires prior authorizationMay have specific code requirements
Check your state for:Covered codesHour/session limitsProvider requirementsAuthorization process
Commercial Insurance
Common patterns:Most require prior authorizationMany limit testing hours (often 6-10 hours total)May require in-network providerOften require specific diagnosis codesMay distinguish psychological from neuropsych benefits
Best practices:Verify benefits before testingGet authorization with specific hours approvedDocument time carefullyBill promptly after service completion
Common Billing Mistakes
Mistake 1: Conflating Evaluation and Administration Time
Wrong: Billing all testing time as administration
Right: Separate evaluation services (interpretation, report) from administration (face-to-face testing)
Mistake 2: Billing Without Two Tests
Wrong: Billing 96136 for single test administration
Right: Codes 96136-96139 require "two or more tests." Single test administration may use 96146 or may not be separately billable.
Mistake 3: Under-Billing Evaluation Services
Wrong: Only billing administration; treating report writing as "overhead"
Right: Report writing, interpretation, and integration are billable evaluation services (96130-96133)
Mistake 4: Improper Technician Supervision
Wrong: Technician administers tests while psychologist is off-site
Right: Ensure supervision meets Medicare and payer requirements (often requires on-site presence)
Mistake 5: Missing Authorization
Wrong: Conducting testing without prior authorization
Right: Most payers require authorization; verify before testing to avoid denial
Mistake 6: Insufficient Documentation
Wrong: Brief report that doesn't justify time billed
Right: Comprehensive report with all required elements, time documentation, and clear medical necessity
For more on avoiding billing errors, see our common billing mistakes guide.
Special Situations
Integrated Testing in Therapy
When testing is integrated with ongoing therapy:Brief outcome measures (PHQ-9, GAD-7) are generally not separately billableDiagnostic testing for treatment planning may be billableDocument clear distinction between therapy and testing servicesCannot double-bill time (therapy OR testing, not both for same time)
Testing Across Multiple Dates
Complex evaluations often span multiple sessions:Bill services on the date performedEvaluation services may be billed on date of interpretation/report completionDocument dates clearly in reportSome payers require testing completed within specific timeframe
School/Educational Testing
Insurance coverage for educational testing is limited:Most medical insurance doesn't cover testing for school placementTesting for medical diagnosis (ADHD, learning disability affecting health) may be coveredIEP-related testing is typically school district responsibility
If billing insurance:Focus on medical/diagnostic purposeUse medical diagnosis codesDocument how results inform treatmentAvoid "educational" language in documentation
Forensic Testing
Generally not covered by health insurance:Testing for legal purposes is not medical necessityBill patient/attorney directlyDifferent documentation standardsHigher liability considerations
Re-Testing
When repeat testing is needed:Document why re-testing is medically necessaryTypical intervals vary by test and purposeSome payers have minimum time between evaluationsMay require separate authorization
Frequently Asked Questions
How many hours of testing will insurance authorize?
Varies widely. Typical ranges: 4-6 hours for psychological testing, 6-12 hours for neuropsychological testing. Always verify specific benefits and request what's clinically needed with justification.
Can I bill for clinical interview time?
Clinical interview for diagnostic purposes is typically included in evaluation services (96130-96133), not billed separately. The interview informs test selection and interpretation.
What qualifies as a "technician" for 96138-96139?
Requirements vary by payer and state. Generally: trained individual working under psychologist supervision who is competent to administer specific tests. Cannot be clerical staff simply running automated tests.
Can I bill testing codes on the same day as therapy codes?
Potentially, if distinct services are provided. Testing and therapy must be separate, documented services. Some payers may have restrictions. Time cannot overlap.
How do I handle testing that identifies a different diagnosis than expected?
Document your findings honestly. Testing often reveals unexpected information—that's its purpose. Bill based on what was done, not what was found. Include the diagnostic conclusions in your report.
What if the patient no-shows for the feedback session?
You've still provided evaluation services (interpretation, report writing). Bill for completed services. Document the no-show. Attempt to reschedule feedback. Consider partial evaluation codes if significant services incomplete.
Can I bill for test scoring time?
Scoring is included in administration codes (96136-96139). It's not separately billable. However, interpretation of scores is part of evaluation services (96130-96133).
How detailed must my time documentation be?
Detailed enough to support your billing if audited. Best practice: log time by activity (administration, interpretation, report writing, feedback) with dates and duration.
Need help managing psychological testing billing? Ease Health's platform supports testing authorization tracking, time documentation, and complex billing scenarios. Schedule a demo to see how we can streamline your testing practice.
Next steps
- Review the key takeaways and adapt them to your practice workflow.
- Use the details section as a checklist when you implement or troubleshoot.
- Share this with your billing or admin team to align on process and terminology.
