New accounts start with a 14-day trial. No credit card required until you’re ready to send appeals.
1. Create your account
Sign up
Go to app.denialbase.com/signup. Use your work email — personal email addresses get rate-limited during signup.
Verify email + enable 2FA
Click the verification link, then enable TOTP or a passkey. 2FA is required for all accounts that touch PHI.
2. Upload your first denial
- EOB / ERA
- Denial letter
- API
Drag a PDF or image of the payer’s Explanation of Benefits onto the upload zone. Supported formats: PDF, PNG, JPG, TIFF, and X12 835.
3. Review the AI detection
Within ~30 seconds you’ll see:Denial reason
Denial reason
Classified into one of 10 types: medical necessity, prior authorization, coding error, timely filing, out-of-network, coverage exclusion, coordination of benefits, patient responsibility, duplicate, or other.
Deadline
Deadline
Extracted from the denial letter (plan-specific) and cross-checked against ERISA / state insurance law minimums.
Strategy recommendation
Strategy recommendation
Peer-to-peer, formal written appeal, or external review — with citations to the specific plan language and regulations.
Confidence score
Confidence score
Below 70%? The denial is automatically routed to Human-in-the-Loop review before any appeal is drafted.
4. Generate and send the appeal
Review the draft
Denialbase pulls the patient’s relevant medical records, drafts the appeal, and shows you a side-by-side with the denial.
Sign via DocuSeal
Your provider signs electronically. Signatures are audit-logged via a HIPAA-ready signature provider.
That’s it. The appeal is now in the Tracking view, where you’ll get notifications for status changes and deadline warnings.
What’s next?
Invite your team
Add billing staff and providers. Set role-based permissions.
Connect your EHR
Pull claims and clinical records automatically via FHIR.
Configure notifications
Slack, email, and in-app alerts for denials, deadlines, and outcomes.
Read insurer-specific tips
Payer-specific quirks, appeal templates, and deadlines.