🏥 SAMHSA ValueSet Viewer

ℹ️ About This Tool

This tool retrieves and displays expanded FHIR ValueSets from tx.fhir.org through a local reverse proxy. Select a SAMHSA ValueSet from the dropdown above and click "Fetch ValueSet" to view its contents.

Browser Security Note: Requests are sent to this app's local /fhir/ endpoint and proxied server-to-server to tx.fhir.org, avoiding browser-side CORS limitations.

Features:

• View all codes in a ValueSet with their system, version (shortened for readability), code, active status, and display name
• Sort by any column by clicking on the column header
• Filter codes by system, code, or display text
• Export data to CSV format
• View statistics about the ValueSet (total codes, active/inactive counts, systems used)
• Compare all ValueSets to find the largest one using "Check All Sizes"
• Detailed error logging in browser console for troubleshooting
• Handles both FHIR Bundle and direct ValueSet responses

Technical Details: This application was developed by GitHub Copilot to provide an intuitive interface for exploring SAMHSA FHIR ValueSets, at the direction of John Moehrke of Moehrke Research LLC. It uses a same-origin reverse proxy endpoint (/fhir/) to query the tx.fhir.org FHIR terminology server and retrieve ValueSet expansions with JSON formatting. The Open Source code is available on GitHub.