CPT 90865Mental Health

Narcosynthesis

CPT code 90865 covers narcosynthesis, a psychiatric interview technique where medication is administered intravenously to help patients recall repressed memories or reveal information they cannot access in a normal state of consciousness.

Showing rates for

National Average

Base Medicare rate

$155.59

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

2.84

PE RVU (NF)

1.82

MP RVU

0.15

Total RVU

4.81

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Clearly document the medical necessity and failure of conventional psychiatric evaluation methods before narcosynthesis, as payers often consider this an investigational or last-resort procedure
Impact: Proper medical necessity documentation reduces denial rate by 60-70% and is critical for the $155.59 non-facility or $117.09 facility payment
Bill in non-facility setting when performed in physician office with appropriate monitoring equipment to capture the additional $38.50 in practice expense reimbursement
Impact: Non-facility rate ($155.59) is 33% higher than facility rate ($117.09), adding $38.50 per procedure
Separately bill for the pharmaceutical agents used (J-codes for sodium amobarbital, benzodiazepines, etc.) as 90865 covers only the professional service component
Impact: Drug costs typically add $50-200 to total reimbursement depending on agent and dosage; failure to bill separately loses this revenue
Do not bill 90865 on the same day as standard psychiatric diagnostic evaluation (90791, 90792) without modifier 59, as payers will bundle services
Impact: Prevents automatic denial and loss of $117-156; modifier 59 must be supported by distinct documentation
Include continuous vital sign monitoring records, timing of medication administration, patient response documentation, and psychiatric findings in the medical record to support the 2.84 work RVUs
Impact: Comprehensive documentation supports full payment and reduces audit recoupment risk; audits of incomplete records result in 100% payment denial
Verify prior authorization requirements before scheduling, as many commercial payers classify narcosynthesis as experimental or requiring pre-certification

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 90865 in 2025?

The 2025 Medicare national average reimbursement for CPT 90865 is $155.59 in non-facility settings and $117.09 in facility settings. The total RVU is 4.81 (2.84 work RVU, 1.82 non-facility PE RVU, 0.63 facility PE RVU, and 0.15 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.

Is narcosynthesis (CPT 90865) still used in modern psychiatric practice?

Narcosynthesis is rarely used in contemporary psychiatric practice due to limited evidence of therapeutic efficacy, ethical concerns, and availability of alternative diagnostic and therapeutic approaches. It may occasionally be employed in specialized settings for treatment-resistant catatonia, severe dissociative disorders, or forensic psychiatric evaluations when conventional methods have failed.

Can CPT 90865 be billed with a psychiatric diagnostic evaluation on the same day?

CPT 90865 can be billed with a psychiatric diagnostic evaluation (90791 or 90792) on the same day only when services are distinct and separately identifiable, documented at different times with different purposes. Modifier 59 must be appended to 90865, and documentation must clearly demonstrate both services were medically necessary and not duplicative.

What medications are typically used for narcosynthesis under CPT 90865?

Common medications for narcosynthesis include sodium amobarbital (Amytal), benzodiazepines like lorazepam or midazolam, or occasionally propofol in controlled settings. The specific pharmaceutical agents must be billed separately using appropriate J-codes, as CPT 90865 covers only the professional service component, not the medications themselves.

Do I need prior authorization to bill CPT code 90865?

Most commercial payers and some Medicare Advantage plans require prior authorization for CPT 90865 due to its specialized nature and concerns about medical necessity. Always verify payer-specific requirements before scheduling the procedure, as retrospective authorization is rarely granted and may result in complete claim denial.

What specialties can bill CPT code 90865?

CPT 90865 should only be billed by psychiatrists or other physicians with appropriate training in psychopharmacology and psychiatric interviewing techniques. The provider must have privileges to administer IV medications and access to appropriate monitoring equipment and emergency resuscitation capabilities.

How does facility vs non-facility setting affect CPT 90865 reimbursement?

The setting significantly impacts reimbursement: non-facility settings (physician offices with monitoring equipment) receive $155.59, while facility settings (hospital inpatient or outpatient departments) receive $117.09, a difference of $38.50 (33% higher in non-facility). This reflects the practice expense differential when the facility provides equipment and staff support.