New: the free AI appeal generator is live.Try it
For behavioral-health & therapy practices

The AI that handles your denied claims.

Two in three denied claims never get reworked. Undeny reads the denial, drafts the appeal, and tracks it to payment, so you recover revenue you'd write off without hiring a biller.

Be one of the first 100 practices. Free denial audit at launch.

Free denial audit at launch · founding pricing · no credit card · unsubscribe anytime.

Curious what denials cost you? See your number in 30 seconds →

  • No PHI stored
  • Appeals in seconds
  • Built for therapy billing
Claim #4471-A · Aetna
Outpatient therapy · CPT 90837
Denied · CO-45
Undeny worked this denial
Appeal letter
Ready

Re: Claim 4471-A · CPT 90837 · Aetna

We request reconsideration of the above claim. The amount allowed is below our contracted fee-schedule rate of $[rate]…

Approve & sendYou review every appeal
Paid · $148 recovered
Appeal approved by Aetna
Built for claims to every major payer
AetnaCignaUnitedHealthcareBlue Cross Blue ShieldAnthemOptum
The cost of unworked denials

Denials are quietly draining your practice

Every denial you don't appeal is revenue you earned but never collected. Most of it is recoverable.

65%

of denied claims are never reworked. Pure lost revenue.

$262B

in claims are denied across U.S. healthcare every year.

~2 in 3

denials are recoverable when practices actually appeal.

Industry estimates (AHA, MGMA, Change Healthcare). Figures vary by payer and specialty.

Free · 30 seconds · nothing stored

See what denials cost your practice

Most practices have no idea how much they write off each month. Get your number, then see what Undeny could win back.

Calculate my number
What we're building

Your denial team, without the billing team

Forward a denial. Undeny figures out why it happened, drafts the appeal, and tracks it to payment.

The product

Undeny works the whole denial, end to end

It reads the denial, writes a payer-ready appeal with the right policy language, and tracks it through to payment.

Cause identified Appeal drafted Tracked to paid

Recover what you write off

Undeny works the low-dollar denials you'd never have time to appeal, the ones that quietly add up.

No billing team required

No new system to learn, no biller to hire. Undeny does the work.

You stay in control

AI drafts; you review and approve before anything reaches the payer. No PHI to start.

Built for therapy billing

Tuned to behavioral-health denials and codes, not generic medical billing.

CO-45CPT 90837Mod 95
How it works

From denial to dollars in three steps

AI does the heavy lifting, you stay in control. No new system to learn, no biller to hire.

01

Bring the denial

Paste the denial code or forward the EOB. Undeny pinpoints why it was denied, in plain English.

02

AI drafts the appeal

Undeny writes a payer-ready appeal with the right policy language in seconds. No PHI needed.

03

You approve & get paid

Review, approve, and submit. Undeny tracks it until you're paid.

Frequently asked questions

When does Undeny launch?
We're onboarding the Founding 100 first. Join the waitlist for early access and a free denial audit at launch that shows exactly what you can recover.
How much will it cost?
Flat, predictable pricing, not a percentage of your collections like most billing services. Founding members lock in founding rates before public pricing.
Is my data safe? Is Undeny HIPAA compliant?
The free tools are PHI-free by design: they use placeholders and store nothing. The paid product runs under a BAA on zero-data-retention AI endpoints, and you approve every appeal before it is sent.
Do I have to switch my EHR or billing system?
No. Undeny works alongside SimplePractice, TherapyNotes, and others. You bring the denial (or connect your remittance) and Undeny drafts the appeal, so your clinical system stays exactly where it is.
Will it work for my specialty?
Undeny is built specifically for behavioral-health and therapy billing (mental health, ABA, PT/OT, and speech), including the codes and modifiers those denials hinge on.
What can I use right now, for free?
All four tools: the AI appeal generator, denial-code lookup, CPT reimbursement estimator, and superbill generator. No login, and nothing you type is stored.
Founding members · limited spots

Join the Founding 100

Be one of the first 100 practices on Undeny. Lock in founding pricing, get a free denial audit at launch, and help shape what we build. Keep using the free tools today.

  • A free denial audit at launch that shows what's recoverable
  • Founding pricing, locked in before public rates
  • First access to the full product, limited to 100 practices
  • A direct line to shape what we build first

Free denial audit at launch · founding pricing · no credit card · unsubscribe anytime.