Insurance code in.
Winning appeal out.
Built for solo behavioral health therapists. Paste any CARC or RARC code — get a ready-to-send, legally grounded appeal letter in seconds. No billing expertise required.
Try it — see the letter before you sign up
Pick a code. Real output. No email required.
Your appeal letter will appear here
Insurance companies deny millions in legitimate behavioral health claims every year
Solo therapists bear the full cost — and most don't have the billing expertise, time, or leverage to recover that revenue fast.
of behavioral health claims are denied on first submission
CMS 2024
in revenue lost per solo practice annually to unappealed claims
APA Practice Survey
of denials are overturned when properly appealed
HCMA
The real problem is turning a rejected claim into recovered revenue.
✗Billing codes are confusing. CO-97 vs. CO-4 vs. OA-23 — each requires a completely different argument.
✗Writing a credible appeal requires knowing MHPAEA, NCCI edits, CPT bundling rules, and payer-specific policies.
✗Billing consultants charge $75–150/hour. Most solo therapists just absorb the loss.
✗SimplePractice and TherapyNotes don't help. They flag the denial and stop there.
From insurance code to winning appeal in under 60 seconds
No billing expertise. No templates. No googling.
📋 Paste your denial code
Enter the CARC or RARC code from the Explanation of Benefits (EOB) you received. Not sure what it means? We'll explain it too.
⚡ Add your claim details
CPT code, payer name, and date of service. Takes 30 seconds. No EHR connection needed, no billing software required.
✉️ Get your appeal letter
A complete, professionally formatted appeal letter with the correct regulatory citations — including MHPAEA parity arguments when they apply.
Every appeal letter includes:
Built for therapists who don't have time for billing headaches
We know you're skeptical. Here's what we've thought through.
HIPAA-safe by design
You enter denial codes, procedure codes, and payer names — nothing that constitutes PHI. No patient names, DOBs, or SSNs ever touch our system. We can't store what you don't give us.
Legally grounded, not generic
Every letter cites real statutes: MHPAEA (29 CFR 2590.712), NCCI edits, and payer-specific appeal policies. Not a template with your name swapped in.
Built for your specific appeal
CO-97 gets a different argument than CO-4. Aetna gets different language than BCBS. The AI reads the code and the context — it doesn't just fill in blanks.
No EHR integration, no risk
No API keys. No EHR connection. No OAuth. You paste a code, you get a letter. If you close the tab, nothing is saved. Your clinical records stay in your system.
MHPAEA: your most powerful appeal argument
The Mental Health Parity and Addiction Equity Act requires insurers to cover mental health at the same level as medical/surgical services. When a payer decision violates parity — and many do — the appeal isn't just "please reconsider." It's a federal compliance demand. Most solo therapists don't know to invoke it. AppealWin does it automatically when the law applies.
Simple pricing that pays for itself
One won appeal typically recovers $150–300. AppealWin costs a fraction of that.
- ✓ 5 AI-generated appeal letters
- ✓ All major claim denial codes supported
- ✓ All major commercial payers
- ✓ MHPAEA parity analysis
- ✓ Copy-and-send format
- ✓ Unlimited appeal letters
- ✓ Everything in free tier
- ✓ Priority processing
- ✓ Expanded payer library
- ✓ Email when new codes added
- ✓ Lock your early access rate
Billing consultants charge $75–150/hour. One appeal takes 45 minutes without AppealWin.
With AppealWin: 60 seconds.
Get your first 5 appeals free
Create a free account and start generating appeal letters in minutes. No credit card required.
No credit card. 5 free appeals included. Upgrade anytime.