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Get Mappings for a Concept

Find how a concept maps to other vocabularies:

Filter by Target Vocabulary

Get mappings to a specific vocabulary only:

Include Invalid Mappings

Include deprecated or invalid mappings in results:

Use Specific Vocabulary Version

Query mappings from a specific vocabulary release:

Map Multiple Concepts

Map a batch of concept IDs to a target vocabulary:

Map Using Vocabulary Codes

Map concepts directly using vocabulary codes instead of OMOP concept IDs:
Use source_codes when you have vocabulary-specific codes (e.g., SNOMED codes from your source system). Use source_concepts when you already have OMOP concept IDs. You cannot use both parameters in the same request.

Map with Specific Mapping Type

Filter mappings by type:

Common Use Case: SNOMED to ICD-10

Option 1: Direct mapping using vocabulary codes (recommended)
Option 2: Using OMOP concept IDs