Behavioral health medical billing services
Time-based codes, session limits, and payers that treat mental health differently from everything else. We bill behavioral health as its own discipline.
Also called: Mental Health · Psychiatry · Psychiatric · Psychology. We keep one page per specialty rather than a page per name.
Why behavioral health billing is different
Behavioral health billing runs on rules that barely exist elsewhere. Most services are timed, so a session that runs 52 minutes and a session that runs 38 minutes are different codes. Many plans cap sessions per year and require authorisation to continue. Carve-out arrangements mean the behavioral health benefit is often administered by a different company than the medical benefit, with its own portal, its own rules, and its own filing deadlines.
Add telehealth — where place-of-service and modifier requirements have changed repeatedly — and it becomes a specialty where general billers routinely lose money.
Documentation is the other half of it. A timed code without start and stop times in the note is a down-coded claim waiting to happen, and an add-on psychotherapy code billed alongside medication management needs the psychotherapy content documented separately from the E/M.
Codes we work with
The families this specialty actually bills, and where each one carries a rule worth knowing.
| Family | Range | Notes |
|---|---|---|
| Psychiatric diagnostic evaluation | 90791, 90792 | 90792 includes medical services |
| Psychotherapy, timed | 90832, 90834, 90837 | 30, 45, and 60 minute tiers |
| Psychotherapy add-on with E/M | 90833, 90836, 90838 | Billed alongside an E/M code |
| Crisis psychotherapy | 90839, 90840 | Base plus each additional 30 minutes |
| Family and group therapy | 90846, 90847, 90853 | With or without patient present |
| Health behavior assessment | 96156–96171 | Non-psychiatric behavioral intervention |
| Psychological testing | 96130–96146 | Evaluation vs. administration separately coded |
| E/M for medication management | 99202–99215 | Often paired with a psychotherapy add-on |
Modifiers that matter
And the specific way each one is most often misused in this specialty.
| Modifier | Use | Common error |
|---|---|---|
| 25 | Significant, separate E/M on the same day | Applied without separately documented E/M content |
| 95 | Synchronous telehealth | Omitted, or used with the wrong place of service |
| HJ, HK, HO, HP | Employee assistance, specialised programme, master’s level, doctoral level | Payer-specific; using the wrong one triggers denial |
| 59 / XU | Distinct procedural service | Overused where a payer expects bundling |
Top denial reasons
With the CARC code you will see on the remittance, and what we do to stop each one recurring.
| Denial | CARC | How we prevent it |
|---|---|---|
| Authorisation not obtained or session limit exceeded | CO-197 | Track authorised units and re-authorise before they run out |
| Provider not credentialed with the behavioral carve-out | CO-B7 | Enroll separately with the carve-out administrator |
| Time not documented for a timed code | CO-16 | Documentation template with start and stop times |
| Non-covered diagnosis under the plan | CO-96 | Verify the behavioral benefit specifically, not just medical coverage |
| Telehealth place of service or modifier mismatch | CO-4, CO-5 | Payer-by-payer telehealth rules maintained and applied |
Prior authorisation in this specialty
Most commercial plans require authorisation after an initial allowance of sessions, and the authorised unit count is easy to overrun. We track remaining units per patient and file re-authorisation before the last covered session, not after. Psychological testing and intensive outpatient programmes almost always need authorisation up front, and the carve-out administrator — not the medical plan — is usually the one who grants it.
Where revenue leaks
- Sessions delivered past an exhausted authorisation — unpaid and usually unbillable to the patient
- Timed codes down-coded because start and stop times weren't documented
- Add-on psychotherapy codes never billed alongside medication management E/M
- Carve-out claims sent to the medical payer and denied for filing deadline by the time they are redirected
What we do for behavioral health practices
The parts of the cycle where this specialty gains the most, framed for how it actually bills.
Denial Management & Appeals
Root-cause analysis, corrected claims, and clinical appeals filed inside payer deadlines.
See denial managementProvider Credentialing & Payer Enrollment
Payer enrollment, CAQH management, re-attestation, and contract negotiation.
See provider credentialingPrior Authorization Services
Auth requests submitted, tracked, and escalated so procedures aren't delayed.
See prior authorizationEligibility & Benefits Verification
Coverage and benefits confirmed before the visit, not after the denial.
See eligibility verificationSee what this specialty is losing in your practice
We run the analysis against behavioral health benchmarks, not a generic template. Send 90 days of claims data and keep the report either way.
Questions about behavioral health billing
Do you bill the behavioral health carve-out payers?
Yes — these are administered separately from the medical benefit and we enroll and bill them directly.
Can you handle telehealth billing?
Yes, including payer-specific place-of-service and modifier requirements.
Do you bill for group practices with mixed licence levels?
Yes — LCSW, LPC, LMFT, PsyD, and MD each carry different payer rules and rates.
Can you track authorisation units for us?
Yes. Remaining units are reported per patient so re-authorisation happens before sessions run out.
Adjacent specialties
Specialties whose billing shares rules, payers or authorisation patterns with this one.