# FirstClaim

- **Event:** [Built with Opus 4.6: a Claude Code hackathon](https://cerebralvalley.ai/e/claude-code-hackathon)
- **When:** Feb 10 at 12:00 PM – Feb 17 at 10:00 AM (EST)
- **Where:** Location TBA
- **Team:** [Tyler Gibbs](https://cerebralvalley.ai/u/tylergibbs)
- **GitHub:** https://github.com/tylergibbs1/firstclaim
- **Demo video:** https://youtu.be/_grR_Zve1D4
- **Gallery:** https://cerebralvalley.ai/e/claude-code-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/claude-code-hackathon/hackathon/gallery/2

Medical billing errors cost US providers over $125B annually. Doctors' notes must be translated into standardized codes (ICD-10, CPT) to get paid. Wrong code, missed modifier, or impossible pairing means a denied claim.

FirstClaim is an AI-native billing application powered by Claude Opus 4.6. Paste clinical notes and a validation pipeline extracts diagnoses and procedures, matches them against a 72,000-entry ICD-10 database, runs compliance checks (age/sex rules, code compatibility, medical necessity), flags errors with dollar amounts at risk, and calculates a risk score. It caught a mammogram billed for a 30-year-old male before it reached an insurer.

The claim workspace makes every finding actionable. Fix issues through conversation: "remove that line item," "swap this code," "bill at a lower level." The claim updates, findings resolve, and risk recalculates in real time. Session history lets you pick up where you left off. Cleaner claims, better reimbursement, the first time.

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Markdown version of https://cerebralvalley.ai/e/claude-code-hackathon/hackathon/gallery/2. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt