We're excited to announce the Concept Lookup Tool - a free web-based interface for searching OMOP vocabularies, discovering PHOEBE-recommended concepts, and building concept sets for your research workflows.

No signup required - start searching immediately.

Key Features

OMOP Vocabulary Search

Search across all major OMOP vocabularies including SNOMED, RxNorm, ICD-10, LOINC, and more. Results appear in real-time as you type, with detailed concept information including domain, vocabulary, and standard concept status.

PHOEBE Recommended Concepts

Search results now include PHOEBE recommendations, marked with a star icon. These are concepts that have been identified as commonly used together in phenotype definitions based on analysis of real-world observational data.

When you see a starred concept, it means PHOEBE has identified it as frequently associated with your search term - helping you discover relevant concepts you might have missed.

Concept Set Builder

Build concept sets directly from your search results:

Add concepts with a single click from search results
Include descendants - toggle per concept to include all child concepts
Exclude concepts - mark concepts as exclusion criteria for your phenotype
Copy concept IDs - quickly copy all concept IDs to your clipboard

Export Options

Export your concept sets in two formats:

CSV Export

Download a CSV file containing:

concept_id
concept_code
concept_name
domain_id
vocabulary_id
include_descendants
is_excluded

ATLAS JSON Export

Export directly to OHDSI ATLAS format - import your concept set into ATLAS without manual recreation.

Search for your condition of interest
Review PHOEBE recommendations to discover related concepts
Add concepts to your set with appropriate descendant/exclusion flags
Export to ATLAS for further refinement

Quick Reference

Need to check a concept code or find the standard concept for a source code? The Concept Lookup tool provides instant access without API keys or authentication.

Get Started

Try the tool: omophub.com/tools/concept-lookup
API access: For programmatic access to vocabularies, check out our API documentation
PHOEBE API: Learn about the PHOEBE recommendations endpoint

The Concept Lookup Tool is free to use with no signup required.

Concept Lookup Tool with Concept Set Builder