Blazing fast semantic interoperability on FHIR
SaaS FHIR terminology server for vendors, HIEs and implementers in healthcare and life sciences.
Join Our Connected Echisystem
API
Look up, validate, expand, translate and test subsumption through a RESTful FHIR API.
No client library, no setup, no signup.
curl 'https://echidna.fhir.org/r4/ConceptMap/$translate ?url=https://tx.echidna.systems/ConceptMap/OmopMapsTo &system=http://hl7.org/fhir/sid/icd-10-cm &code=E11.9'"code": "201826""display": "Type 2 diabetes mellitus"Browser
Search concepts, walk hierarchies and check mappings without writing a line of code.
Fast, and free to use.
AI-ready
Connect any AI assistant or agent over MCP (Model Context Protocol). Your agent can look up, validate, expand and translate terminology directly, with no glue code to write.
Same free tier as the API. No key required.
What's the OMOP standard concept forICD-10-CM E11.9?201826 (Type 2 diabetes mellitus)Why Choose Echidna?
Authoritative
Echidna is the authoritative FHIR compliant, production grade terminology server recognized by both the HL7 and OHDSI communities.
Blazing Fast
Speed is Scalability: Echidna’s speed makes it suitable for any application from decision support to national HIEs.
Centralized
Accessible from everywhere, Echidna enables all systems you depend on, including the ones in other organizations that you don’t control, to use the same terminologies and versions without painful coordination.
Standards-native
FHIR R4 and R5 from one endpoint, with $lookup, $expand, $translate, $subsumes and $validate-code. Machine-readable OpenAPI specs for every operation.
Auditable
Echidna offers a complete audit trail for governance, compliance and integrity.
Up to date
Outsource tedious vocabulary updates across multiple systems, to always be synchronized and compliant.
Ready to Dive Deeper?
Read the documentation or dive into the interactive API reference to get started.