Behavioral Health Billing
PMHNP Billing & Coding: A Practical 2026 Guide
Direct and incident-to billing, common CPT codes, Medicare payment, telehealth, documentation, and the denial patterns PMHNP practices need to watch.
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Coding and Claims, Done Right the First Time
- Daily visits coded accurately — E/M levels like 99214 with the 90833 psychotherapy add-on.
- Diagnostic evaluations coded right — 90792 for prescribing intakes, 90791 without medical services.
- Direct vs. incident-to billing decisions, documented and defensible.
- Telehealth coding with the correct place-of-service codes and modifiers.
- Claim scrubbing, submission, denials, and appeals across Medicare, Medicaid, and commercial payers.
The coding layer of our full mental health billing service.
The 85% Question
Direct vs. Incident-To: The Reimbursement Difference
The most important concept in PMHNP billing — and it’s Medicare-specific.
Direct Billing (85%)
Under your own NPI, Medicare pays 85% of the physician fee schedule (42 CFR 414.56). Simple and low-risk.
Incident-To (100%)
Under the physician’s NPI at 100% — but only with an established plan, no new problems, and direct supervision.
Commercial & Medicaid
The 85% rule is Medicare-only. Commercial and Medicaid rates are set by plan and state — check your contract.
Go deeper on incident-to billing for PMHNPs and PMHNP reimbursement rates.
The Codes
CPT Codes PMHNPs Use Most
Paraphrased for orientation only — confirm descriptors in the current AMA CPT code set and your payer’s policy. Want it printable? Grab the PMHNP CPT codes cheat sheet.
| CPT Code | What PMHNPs Use It For |
|---|---|
| 90791 | Psychiatric diagnostic evaluation without medical services. |
| 90792 | Diagnostic evaluation with medical services — the typical prescribing intake. |
| 99202–99215 | E/M office visits for medication management and follow-up. |
| 90833 / 90836 / 90838 | Psychotherapy add-ons (~30/45/60 min) with an E/M code; document therapy time separately. |
| 90832 / 90834 / 90837 | Standalone psychotherapy (~30 / 45 / 60 min). See 90834 vs 90837. |
| 90853 | Group psychotherapy, per patient. Check payer limits on group size. |
Full Visibility
See Every Claim From Charge to Paid
We code, scrub, submit, and work each claim to payment — then chase the denials most practices never reach. You see status, aging, and appeals in one place.
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How It Works
How We Run Your Billing
Map Codes and Payers
We review your visit types, set direct vs. incident-to rules, and confirm each payer’s requirements.
Scrub and Submit
Claims are checked against payer and documentation rules, then submitted clean.
Work Denials and Appeals
We follow up on aging, correct and resubmit denials, and appeal what should have paid.
Stop the Leaks
Top PMHNP Billing Denial Reasons
Enrollment Gaps
Billing before enrollment is active, or after a CAQH attestation lapsed, denies as “provider not eligible.”
Invalid Incident-To
A new problem or no supervising physician in the suite fails the rules — a compliance risk, not just a denial.
Missing Therapy Time
Add-ons 90833, 90836, and 90838 need documented psychotherapy time separate from the E/M work.
FAQ
Frequently Asked Questions
Can PMHNPs Bill Medicare?
Yes — nurse practitioners are recognized Medicare providers. Enroll through PECOS, usually via the CMS-855I (a group adds the CMS-855R). Under your own NPI, Medicare pays 85% of the physician fee schedule.
Can PMHNPs Bill Medicaid?
Usually — it varies by state. Every state Medicaid program reimburses nurse practitioners, but enrollment, covered services, rates, and supervision rules are set state by state. Confirm your state’s policy.
What Is Incident-To Billing?
It bills a PMHNP’s service under the physician’s NPI at 100% — but only when the physician set the plan, the patient has no new problem, and the physician is in the office suite. See incident-to billing for PMHNPs.
Get the Free Behavioral Health CPT Quick Sheet
Diagnostic, E/M + add-on, psychotherapy, and Spravato codes with the denial traps — one page, printable. PDF.
Informational only — not billing, coding, legal, or medical advice. Coding rules, coverage, and payment change and vary by payer and state. Verify every code and rule against the current AMA CPT code set, your CMS Medicare Administrative Contractor, your state Medicaid program, and your payer contracts before billing. CPT is a registered trademark of the American Medical Association. Last reviewed: July 2026.