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New accounts start with a 14-day trial. No credit card required until you’re ready to send appeals.

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1. Create your account

1

Sign up

Go to app.denialbase.com/signup. Use your work email — personal email addresses get rate-limited during signup.
2

Verify email + enable 2FA

Click the verification link, then enable TOTP or a passkey. 2FA is required for all accounts that touch PHI.
3

Complete the onboarding wizard

Name your practice, choose your specialty, and confirm your first payer. You can edit all of this later in Settings → Practice.

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2. Upload your first denial

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.

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3. Review the AI detection

Within ~30 seconds you’ll see:
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.
Extracted from the denial letter (plan-specific) and cross-checked against ERISA / state insurance law minimums.
Peer-to-peer, formal written appeal, or external review — with citations to the specific plan language and regulations.
Below 70%? The denial is automatically routed to Human-in-the-Loop review before any appeal is drafted.

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4. Generate and send the appeal

1

Review the draft

Denialbase pulls the patient’s relevant medical records, drafts the appeal, and shows you a side-by-side with the denial.
2

Sign via DocuSeal

Your provider signs electronically. Signatures are audit-logged and HIPAA-compliant.
3

Submit

Send via the payer’s preferred channel — portal upload, fax, or certified mail. Denialbase tracks the submission receipt.
That’s it. The appeal is now in the Tracking view, where you’ll get notifications for status changes and deadline warnings.

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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.