Psychiatry Billing Services
Psychiatry billing operates under a fundamentally different coding framework than most medical specialties. The 2013 shift eliminated the old psychiatric interview codes (90801-90802) and replaced them with E/M-based coding plus add-on psychotherapy codes (90833, 90836, 90838). This means psychiatrists now bill a standard E/M visit (99213-99215) and layer a time-based psychotherapy add-on when therapy is performed in the same session. Getting the pairing right — which E/M level, which add-on duration, and the documentation to support both — is where most psychiatry practices lose revenue or create audit risk.
The complexity deepens with the variety of service models in modern psychiatry: medication management visits, individual psychotherapy, crisis intervention (90839-90840), psychological testing (96130-96139), and collaborative care codes (99492-99494). Each has distinct documentation requirements and time thresholds. A 16-minute psychotherapy add-on is a completely different code than a 38-minute one, and rounding errors in either direction cost money.
Psychiatry billing at a glance
Common psychiatry procedures we bill daily.
Psychiatric Evaluation
Psychotherapy Services
Crisis & Intensive Services
Psychiatry billing challenges we solve every day.
Psychiatry is one of the most complex specialties to bill. High-value procedures, strict documentation requirements, and frequent payer policy changes mean even experienced in-house billers miss revenue. For coding standards, see the American Psychiatric Association.
E/M Plus Psychotherapy Add-On Pairing
The most common billing error in psychiatry is mispairing the E/M level with the psychotherapy add-on. The add-on codes (90833, 90836, 90838) can only be billed alongside an E/M service performed on the same day. The E/M level must be supported by its own documentation of medical decision making, independent of the psychotherapy time. And the psychotherapy time thresholds are strict: 90833 requires 16-37 minutes, 90836 requires 38-52 minutes, and 90838 requires 53+ minutes of psychotherapy — not total face time. Evolution audits every claim to ensure the time documented, the E/M level selected, and the add-on code all align.
Behavioral Health Carve-Out Navigation
Many commercial insurance plans route mental health claims through separate behavioral health companies — Optum Behavioral, Carelon (formerly Beacon), Lyra, Spring Health — rather than through the medical plan. These carve-outs often have different provider networks, different prior authorization requirements, different allowed amounts, and different claims submission addresses. Filing a psychiatric claim to the medical plan when it should go to the behavioral carve-out guarantees a denial. Evolution verifies behavioral health benefits and routes every claim to the correct entity.
Credential-Based Billing Restrictions
Psychiatry practices often employ a mix of MDs, DOs, NPs, PAs, psychologists, and licensed therapists (LCSW, LPC, LMFT). Each credential type has different billing rules by payer: some plans credential LCSWs directly while others require “incident to” billing under a physician. Psychologists can bill 90791 but not 90792 (which requires medical services). NPs may need collaborative agreements on file. Evolution manages the credentialing matrix and ensures every claim goes out under the correct rendering provider with the right taxonomy code.
Session Duration Documentation
Time-based billing in psychiatry demands precise start and stop times for psychotherapy sessions. Vague documentation like “45-minute session” without actual clock times creates audit vulnerability. Medicare requires face-to-face psychotherapy time to be explicitly documented, separate from the E/M component. Evolution implements time-tracking documentation standards and flags claims where session duration documentation is missing or inconsistent before submission.
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