// Appeals Beta

Appeal any denial in minutes

Paste a denied EOB. We extract the claim fields, look up your contracted rate from the payer's own published Transparency-in-Coverage file, and generate a legal-grade appeal letter you can print and mail today. Engine fully live. Practice Mode by default.

Total Appeals

all time

Win Rate

won / closed

$ Recovered

$--

documented wins

This Month

appeals drafted

Beta · Practice Mode: ReimburseOS is in active customer beta. We do not currently have signed Business Associate Agreements with our infrastructure partners. Until we do, use Practice Mode: de-identified or synthetic claim data only. We automatically scrub obvious PHI patterns before processing, but you are responsible for redaction. Live Mode activates once our BAAs are in place, and you will be notified the moment that happens.

📄 Paste Denied EOB

EOB text (paste from your portal or remittance)

Auto-redacting obvious PHI for your protection.

Upload EOB as PDF PDF up to 10 MB · text extracted server-side

⚡ How It Works

Paste or upload your EOB

EOB text is PHI-scrubbed, then sent to Claude Sonnet for field extraction. 18 fields, per-field confidence score, streaming output.

Confirm or edit

Review the extracted fields. Edit any that need correction. We then look up your contracted rate in the payer's TiC file.

Generate the letter

Claude Opus writes a two-page, regulation-citing appeal letter with your contracted rate and source slug from the federal TiC file embedded verbatim.

Download + mail

Download as PDF. Copy the payer mailing address or fax number. You handle transmission until our BAA with Anthropic is complete.

Cost per appeal
Approximately $0.20 in AI processing. Free tier: 1 appeal per month. Upgrade for unlimited access.

Extracting Claim Fields

Claude Sonnet 4.6: EOB field extraction

Initializing extraction...

Confirm Extracted Fields

Claude extracted the fields below. Edit any that need correction before generating the appeal letter. Confidence chips reflect extraction certainty.

Appeal Letter

📋 Your Appeals: Status Tracker