90845 CPT Code Billing Guide: Rules, Documentation & Reimbursement Trusted Mental Health Billing Experts
Mental health billing is one of the most nuanced areas of medical coding — and CPT code 90845 sits at a particularly specialized intersection: psychoanalysis. Whether you are a psychiatrist, psychologist, or licensed psychoanalyst, understanding how to bill this code correctly can mean the difference between timely reimbursement and costly claim denials. This guide walks you through everything you need to know — from the clinical definition of the service to documentation best practices, payer rules, and reimbursement benchmarks.
What is CPT code 90845?
CPT code 90845 is defined by the American Medical Association (AMA) as psychoanalysis. Unlike conventional psychotherapy codes such as 90832, 90834, or 90837 — which are time-based and describe talk therapy at varying session lengths — 90845 describes a specific and structured psychoanalytic process. This is not simply a longer or more intensive form of therapy. Psychoanalysis is a distinct treatment modality rooted in psychoanalytic theory, involving exploration of the unconscious mind, analysis of transference dynamics, and interpretation of dreams, defenses, and free association. The procedure typically involves multiple sessions per week — often three to five — conducted over months or even years. The frequency and long-term nature of this treatment distinguish it sharply from standard outpatient psychotherapy, and payers treat it accordingly. Before billing 90845, providers should understand that this code signals a very specific clinical commitment. Misusing it for standard therapy sessions — even intensive ones — constitutes a coding error and a compliance risk. The AMA’s definition is precise, and payer medical directors are generally aware of the clinical criteria that support legitimate use of this code.
What is CPT code 90845?
CPT code 90845 is defined by the American Medical Association (AMA) as psychoanalysis. Unlike conventional psychotherapy codes such as 90832, 90834, or 90837 — which are time-based and describe talk therapy at varying session lengths — 90845 describes a specific and structured psychoanalytic process. This is not simply a longer or more intensive form of therapy. Psychoanalysis is a distinct treatment modality rooted in psychoanalytic theory, involving exploration of the unconscious mind, analysis of transference dynamics, and interpretation of dreams, defenses, and free association. The procedure typically involves multiple sessions per week — often three to five — conducted over months or even years. The frequency and long-term nature of this treatment distinguish it sharply from standard outpatient psychotherapy, and payers treat it accordingly. Before billing 90845, providers should understand that this code signals a very specific clinical commitment. Misusing it for standard therapy sessions — even intensive ones — constitutes a coding error and a compliance risk. The AMA’s definition is precise, and payer medical directors are generally aware of the clinical criteria that support legitimate use of this code.
Who can bill CPT 90845?
Not every licensed mental health professional can bill 90845. Payers generally restrict this code to providers who have completed formal psychoanalytic training in addition to their base clinical licensure. Being credentialed for general behavioral health services does not automatically permit billing for psychoanalysis specifically — always verify with each individual payer.
Physicians with psychiatric specialty training who have also completed accredited psychoanalytic training are the most broadly accepted billers of 90845 across payer types.
Doctoral-level psychologists with training at an accredited psychoanalytic institute may bill, though credentialing acceptance varies significantly by payer and region.
Recognized in states such as New York as a standalone licensure category. However, many commercial payers still do not credential this provider type, creating meaningful access barriers.
Even with formal psychoanalytic training, social workers and counselors face the greatest credentialing challenges and are frequently excluded from 90845 billing by commercial payers.
The key principle: verify your credentialing status for CPT 90845 specifically with every payer where you intend to bill it — not just your general behavioral health credentialing status. Denials due to credentialing gaps are entirely preventable with upfront verification.
Clinical criteria: what qualifies as psychoanalysis?
The most important distinction for billing 90845 correctly is understanding what actually constitutes psychoanalysis versus intensive psychotherapy. Payers and auditors scrutinize this distinction, and improper use of 90845 when standard psychotherapy was provided is both a coding error and a compliance risk.
Session frequency
Sessions must occur at least three times per week. A twice-weekly treatment — even if conducted by a trained psychoanalyst — is generally classified as psychoanalytic psychotherapy rather than psychoanalysis proper. Payers may flag or deny 90845 claims when session frequency does not support the treatment model.
Analytic technique
Use of free association, analysis of transference and countertransference, dream interpretation, and exploration of unconscious conflict are clinically required. The recumbent couch position is a traditional hallmark, though not universally required for billing purposes.
Treatment goals
Psychoanalysis aims at structural personality change rather than symptom relief alone. The clinical record must reflect goals consistent with this deeper work — not simply crisis stabilization, coping skill development, or behavioral modification.
Diagnosis compatibility
Common diagnoses billed alongside 90845 include depressive disorders (F32.x, F33.x), anxiety disorders (F41.x), personality disorders (F60.x), and trauma-related conditions (F43.x). Acute psychosis, active substance use disorder, or severe cognitive impairment generally do not support psychoanalytic treatment and will face denial.
Documentation requirements for 90845
Thorough documentation is your primary defense against claim denials and audit risk. For CPT 90845, standards are high — both because the service is intensive and because payers are more likely to scrutinize a less common, higher-cost code. Every session note must do real clinical work, not just satisfy a checkbox.
Record the date and length of every session. Although 90845 is not time-based, consistent documentation of session time establishes alignment with the treatment model and helps defend against frequency-based denials.
Each note must reflect real analytic work — themes explored, interpretations offered, patient responses, transference manifestations, and relevant dream or fantasy material where applicable. Notes that read like generic supportive therapy will not support this code.
A brief mental status note should appear in every session, consistent with the provider’s professional scope of practice and the payer’s documentation requirements.
Each session note must connect the patient’s diagnosis and symptoms to the treatment provided, explaining why psychoanalysis specifically — rather than a less intensive modality — is medically necessary for this patient at this stage of treatment.
A comprehensive treatment plan must be present and updated regularly. It should specify the analytic approach, session frequency, treatment goals, and anticipated duration. Payer requirements vary — confirm the update interval with each insurer.
A full psychiatric or psychological evaluation must exist in the chart prior to initiating psychoanalysis. Standardized psychological testing, while not required, substantially strengthens medical necessity arguments during payer reviews.
Your NPI, licensure, and psychoanalytic training credentials should be documented and readily accessible. For supervised services, the supervising provider’s information and the supervisory relationship must be clearly recorded in the chart.
Payer rules & prior authorization
One of the most significant practical challenges with CPT 90845 is that coverage varies enormously across payers, and prior authorization is the norm rather than the exception. Always verify benefits and obtain required authorization before the first session — retroactive authorization for psychoanalysis is extremely rare.
| PAYER TYPE | COVERAGE | AUTH REQUIRED | KEY NOTES |
|---|---|---|---|
| Medicare | Limited | ABN often needed | Review your MAC’s LCD before billing; coverage is inconsistent by region |
| Medicaid | Rarely covered | Verify by state | Most state Medicaid programs exclude psychoanalysis entirely |
| UHC / Aetna / Cigna | Varies | Usually required | Some plans exclude 90845 categorically; confirm plan-level benefits |
| BCBS plans | Often covered | Yes, with review | Expect ongoing medical necessity reviews every 30–60 days |
| Self-pay | Always applicable | Not required | Many psychoanalytic practices operate primarily on a self-pay basis |
When submitting a prior authorization request for psychoanalysis, go beyond the basics. A compelling submission should include the patient’s diagnosis, a summary of prior treatment attempts and their outcomes, the specific clinical rationale for psychoanalysis over less intensive alternatives, the proposed session frequency and estimated treatment duration, and documentation of the provider’s psychoanalytic training and credentials.
Reimbursement rates
Reimbursement for 90845 varies significantly by payer, geography, and provider type. Because this code can be billed multiple times per week for the same patient, the per-session rate multiplies quickly — which can trigger payer frequency edits or requests for additional medical necessity documentation beyond certain monthly thresholds.
MEDICARE
Per session, national avg. Non-facility setting
COMMERCIAL (IN-NETWORK)
Per session; varies by region and contracted rate
SELF-PAY
Major metro markets; reflects training and treatment intensity
Always review payer contracts and fee schedules for session frequency limits. A Medicare patient seen five times per week can generate 20+ claims per month under this code — a volume that flags for review even when fully supported clinically. Proactive documentation and communication with payers helps reduce retrospective denials.
Common billing errors — and how to avoid them
Billing 90845 for psychotherapy
Using 90845 when standard or even intensive psychotherapy was provided is a coding error. If the treatment does not meet the full clinical definition of psychoanalysis — including appropriate frequency and technique — the correct codes are in the 90832–90837 range.
Missing prior authorization
Providing psychoanalysis without required authorization is the most common reason for denial. Always verify requirements before the first session and track each renewal cycle carefully.
Thin or generic session notes
Documentation that reads like a standard therapy note will not survive payer scrutiny or an audit. Each note must reflect genuine analytic work — not just a check-the-box mental status and a vague therapy summary.
Credentialing gaps
Being contracted for behavioral health in general does not mean you are approved to bill 90845 specifically. Always verify this code’s credentialing status with each payer before billing.
Incorrect modifier use
Telehealth sessions require appropriate place-of-service codes and modifier 95 where applicable. Do not append modifiers that do not apply, and do not omit required ones — both cause denials.
Telehealth and CPT 90845
The expansion of telehealth coverage since the COVID-19 public health emergency has opened new questions about whether psychoanalysis can be legitimately delivered — and billed — via video platform. Clinically, this is complex: traditional psychoanalytic technique relies on a specific physical setup that is not easily replicated on screen. Analytically trained providers should document the clinical rationale when choosing telehealth delivery within an ongoing psychoanalytic treatment.
Use POS 02 for telehealth provided other than in the patient’s home, or POS 10 for services delivered in the patient’s home. Append modifier 95 where required by the payer. Document in each session note that the service was delivered via synchronous audio-video technology and that the patient was located in the appropriate state at the time of the session.
CMS has included 90845 on its covered telehealth services list under certain permanent provisions. Commercial payer telehealth policies for psychoanalysis vary significantly — always verify plan-level coverage before assuming that a payer’s general telehealth authorization extends to this specific code.
Compliance considerations
Because 90845 is an unusual and relatively low-volume code, it tends to attract audit attention even when billed correctly. A proactive compliance posture protects the practice long before any payer review arrives.
Maintain a treatment plan for each psychoanalysis patient that is clearly different in language and intent from a standard psychotherapy plan. Generic templates do not suffice.
Conduct periodic self-audits to confirm that session notes consistently reflect both the diagnosis and genuine psychoanalytic technique across all 90845 claims.
Keep copies of your psychoanalytic training certificates, institute affiliations, and any relevant supervised hours readily accessible for payer credentialing and audit purposes.
LCD policies and commercial payer coverage determinations for psychoanalysis change. Assign someone in your practice to monitor updates at least annually and before any new 90845 case is opened.
One additional compliance note: because 90845 can be billed at high frequency per patient, the claim volume for a single patient may look atypical to payer review systems. Having a complete, well-documented chart ready to produce at any time is the single most effective defense against retrospective claim recovery demands.
Final thoughts
CPT code 90845 occupies a unique and demanding space in behavioral health billing. Properly used, it accurately describes a rigorous and deeply effective form of treatment for appropriate patients. But the combination of specialized provider requirements, intensive documentation standards, inconsistent payer coverage, and elevated audit risk makes it essential that any practice billing 90845 approaches this code with both clinical precision and administrative diligence. The investment in building strong documentation habits, maintaining clear credentialing records, and staying current on payer policy changes will pay dividends in cleaner claims, fewer denials, and a more defensible compliance posture — now and as your psychoanalytic practice grows.
Make An Appintment With Us