Narcosynthesis
CPT code 90865 covers narcosynthesis, a psychiatric procedure where medication is administered intravenously to help a patient achieve a semi-conscious state for therapeutic interviews to uncover repressed memories or trauma.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Always bill in the facility setting when performed in hospital or psychiatric unit to reflect the $117.09 facility rate, which accounts for hospital overhead and monitoring equipment
Impact: Correct place of service coding prevents $38.50 payment differential errors and audits
Document the specific medication used, dosage, route of administration, duration of sedation, and continuous monitoring parameters to support medical necessity
Impact: Comprehensive documentation reduces denial risk by 60-70% and supports the 2.84 work RVUs assigned to this complex procedure
Do not bill 90865 on the same day as psychotherapy codes (90832-90838) without modifier 59 and clear documentation that services were separate and distinct
Impact: Prevents bundling denials that could result in loss of $155.59 payment; modifier 59 required to unbundle services
Verify prior authorization requirements as most commercial payers classify narcosynthesis as investigational or experimental, requiring peer-to-peer review before approval
Impact: Obtaining prior authorization prevents 80-90% of denials; Medicare covers when medically necessary but many commercial plans do not
Bill anesthesia monitoring and IV sedation services separately using appropriate anesthesia codes if performed by separate provider, but ensure no duplicate billing for monitoring included in 90865
Impact: Proper coordination prevents unbundling allegations while capturing legitimate separate services potentially worth additional $200-400
Include DSM-5 diagnosis codes that clearly support medical necessity such as F44.0 (dissociative amnesia), F44.4-F44.7 (conversion disorders), or F43.10 (PTSD) rather than general anxiety or depression codes
Impact: Diagnosis alignment with procedure indication increases first-pass approval rates by 40-50%
Common denials
Medical necessity not established - payer considers narcosynthesis experimental or investigational for the documented diagnosis
How to appeal: Submit peer-reviewed literature supporting efficacy for specific diagnosis, document failed conventional treatments with dates and methods, provide detailed clinical rationale from treating psychiatrist explaining why alternative approaches are inadequate, request peer-to-peer review
Bundled with same-day E/M or psychotherapy service - payer considers narcosynthesis interview component already included in psychiatric evaluation
How to appeal: Resubmit with modifier 59 on 90865, provide separate documentation showing distinct time periods and purposes, include procedural note detailing IV medication administration and sedation monitoring that distinguishes this from standard interview, cite CPT guidelines showing 90865 as standalone procedure code
Insufficient documentation of sedation monitoring and safety protocols required for pharmacologically-assisted interview
How to appeal: Submit complete procedural note including pre-procedure assessment, informed consent, medication name/dose/route/time, vital signs monitoring log at 5-minute intervals, recovery monitoring, post-procedure assessment, and physician attestation of direct supervision throughout
Place of service incorrect - facility billed non-facility rate or vice versa creating $38.50 payment discrepancy
How to appeal: Verify actual location of service, submit corrected claim with appropriate POS code (21 for inpatient hospital, 22 for outpatient hospital, 11 for office only if appropriate monitoring equipment present), provide facility documentation if performed in hospital setting
Frequently asked questions
What is the Medicare reimbursement rate for CPT code 90865 in 2025?
The 2025 Medicare national average payment for CPT 90865 is $155.59 in the non-facility setting and $117.09 in the facility setting. The code has a total of 4.81 RVUs (2.84 work RVUs, 1.82 non-facility PE RVUs, 0.63 facility PE RVUs, and 0.15 malpractice RVUs) multiplied by the 2025 conversion factor of 32.3465.
Can CPT 90865 be billed with psychotherapy codes on the same day?
CPT 90865 can be billed with psychotherapy codes (90832-90838) on the same day only if the services are separate and distinct, with modifier 59 appended to 90865 and clear documentation showing different time periods and purposes. The narcosynthesis procedure involves IV medication administration and sedated interviewing, which must be documented separately from any standard psychotherapy session. Most payers scrutinize same-day billing closely.
What diagnosis codes support medical necessity for narcosynthesis?
Diagnosis codes most likely to support medical necessity for CPT 90865 include F44.0 (dissociative amnesia with or without fugue), F44.4-F44.7 (conversion disorders), F43.10-F43.12 (PTSD), and F44.81 (other dissociative disorders). Documentation should show these conditions are treatment-resistant and that conventional psychotherapy, pharmacotherapy, and other evidence-based approaches have been attempted without success before resorting to narcosynthesis.
Do commercial insurance plans cover CPT code 90865?
Coverage for CPT 90865 varies significantly among commercial payers. Many insurers consider narcosynthesis experimental or investigational due to limited contemporary evidence supporting its efficacy and safety. Prior authorization is almost always required, often involving peer-to-peer review. Medicare covers the procedure when medically necessary and properly documented, but individual commercial plans may have specific exclusion policies requiring case-by-case appeals with supporting literature.
What medications are typically used for narcosynthesis billing under 90865?
Historically, sodium amobarbital (Amytal) and sodium pentothal (thiopental) were used for narcosynthesis, though current practice may employ shorter-acting benzodiazepines like midazolam or other sedative-hypnotics. The specific medication, dosage, concentration, and administration route must be documented in the procedure note. The medication administration itself is included in the 90865 code and should not be billed separately with J-codes, as the procedure code encompasses the pharmacologic interview technique.
Who can perform and bill for CPT code 90865?
CPT 90865 must be performed by or under the direct supervision of a licensed psychiatrist with hospital privileges and credentialing for procedural sedation. The physician must be physically present and immediately available throughout the procedure due to the risks associated with IV sedation. Psychologists, nurse practitioners, and physician assistants cannot independently perform or bill for narcosynthesis, even in states with independent practice authority, due to the medical procedure and sedation components requiring physician oversight.
What documentation is required to support billing CPT 90865?
Required documentation for CPT 90865 includes: pre-procedure psychiatric evaluation establishing medical necessity, informed consent, medical clearance, specific medication details (name, dose, route, time), continuous vital signs monitoring log at 5-minute intervals, detailed narrative of the therapeutic interview during sedation, procedure duration, post-procedure recovery assessment, psychiatric formulation of findings, treatment plan modifications, and physician signature attesting to direct supervision. The documentation must clearly distinguish this pharmacologically-assisted interview from standard psychotherapy to justify the 4.81 RVUs and $155.59 reimbursement.