Medicare reimbursement reference
CPT 90791: $178
Psychiatric diagnostic eval (no medical svc). The federally-set baseline for what this code costs when Medicare pays — the standard public-domain reference for self-pay or insured bill review.
National average
$178
Per CMS Physician Fee Schedule, effective 2026-01-01. Non-facility national-average. Real Medicare payments adjust by ±15% based on Geographic Practice Cost Index.
What CPT 90791 actually is
Psychiatric diagnostic eval (no medical svc) (CPT 90791). This code falls in the "Behavioral Health" service family. Medicare's national-average non-facility allowed amount is the federally-set baseline; commercial insurance and hospital cash-pay rates often run multiples of this number for the same code, depending on the facility and contract.
The number above is one piece of context. The other two benchmarks worth knowing:
Hospital cash-pay rate
Federally required to be published by every US hospital under 45 CFR §180.50 (the Hospital Price Transparency rule). The hospital’s own machine-readable file is the authoritative source. Same code; rates vary widely by facility.
Insurance-negotiated rate
Whatever your specific insurance plan and the specific facility have contracted for the same code. Visible on your Explanation of Benefits (EOB) after the claim posts.
Medicare allowed amount (this page)
$178 for code 90791, set in federal law and updated annually by CMS. Used as the floor benchmark in most bill-review work.
Where CPT 90791 commonly shows up on a bill
Common patterns to look at when reviewing this code:
- 01.A code billed at the global rate when only a partial component was rendered (modifier -26 or -TC may apply).
- 02.The same code billed multiple times for what appears to be the same encounter.
- 03.An item billed without supporting documentation in the medical record.
These patterns are documented in CMS billing guidance, the National Correct Coding Initiative (NCCI) edits, and Office of Inspector General audit reports. None of them are accusations about any specific bill or facility — they’re the checks that exist because the patterns themselves exist.
What hospitals charge for CPT 90791
Distribution across 27 US hospitals reporting this code under federal Hospital Price Transparency rules (45 CFR §180.50). Gross charges shown here are the chargemaster prices — the starting point before insurance discounts or self-pay reductions. Medicare allowed amount: $178.
Hospital gross (median)
$501
25th $464 · 75th $509
Cash / self-pay (median)
$180
What hospitals accept directly
Commercial (median)
$148
Range $124–$772
Medicare allowed
$178
Federal-rate floor
Range across all reporting hospitals: $187 to $925. That’s a 5× spread for the same procedure code — one of the reasons federal price-transparency rules exist.
Hospitals at the lower end of the distribution
Sorted by published chargemaster price only. Chargemaster is the starting point before insurance discounts or self-pay reductions; the actual amount any specific patient pays depends on case mix, charity-care policy, and insurance contract.
If your bill has this code
See exactly how your charge compares to $178— in just a few minutes.
Upload a photo or PDF of your bill. Our system reads every line, compares each charge to six federal data sources (CMS PFS, NADAC drug benchmarks, federally-required Hospital Price Transparency files, the National Correct Coding Initiative, CMS Hospital Compare quality data, and IRS Publication 78 for charity-care eligibility), and drafts dispute letters for anything worth questioning — with the codes, the math, and the federal-law citations already inside.
- ✓Line-by-line audit, every charge benchmarked.
- ✓Up to 5 dispute letters drafted — sign and mail.
- ✓Charity-care application if your hospital is non-profit.
- ✓30-day money-back guarantee on single audits.
Related codes
Codes in the same numerical neighborhood — often appear together on the same bill or get billed in place of each other:
Common questions about CPT 90791
How much does CPT 90791 cost?
Why is my CPT 90791 bill higher than $178?
Can I dispute a CPT 90791 charge?
What's the source of this number?
P.S. If you’re holding a bill with code 90791on it right now, the fastest path is to run it through the audit — it takes just a few minutes and shows the exact gap between what was charged and the $178 benchmark above. Start the audit →
P.P.S. If the bill came from a non-profit hospital, federal law (ACA §501(r)) requires them to offer charity care to patients below specific income thresholds. We auto-check 501(c)(3) status against the IRS Publication 78 database and draft the application letter when applicable.
P.P.P.S. The $178number above is a benchmark, not a verdict. The right question on any specific bill is whether the documentation in your medical record supports the code that was billed — that’s what every bill-review process ultimately comes down to.
Source & methodology
Rate from the CMS Physician Fee Schedule, refreshed quarterly from cms.gov. National-average non-facility allowed amount; real Medicare payment adjusts by ±15% per locality (GPCI). The CMS PFS is in the public domain (17 USC §105). Full data-source register at /data-sources.