Hermes
A library and microservice implementing SNOMED CT with fast search, inference, cross-mapping, and ECL support.
What is Hermes?
Hermes is a library and microservice that implements SNOMED CT, the international standard for clinical terminology. It provides tools for fast full-text search, inference, cross-mapping to other code systems, and support for SNOMED CT's Expression Constraint Language (ECL). The project solves the problem of accessing and reasoning with SNOMED CT data in a lightweight, scalable manner without external dependencies.
Healthcare software developers, clinical informaticians, and organizations building electronic health records (EHRs), clinical decision support systems, or analytics pipelines that require SNOMED CT integration.
Developers choose Hermes for its speed, simplicity, and flexibility—it imports and indexes SNOMED CT in minutes, runs as a standalone microservice or embeddable library, and has no runtime dependencies beyond a filesystem. Its support for ECL, OWL reasoning, and cross-mapping makes it a comprehensive terminology solution.
Overview
A library and microservice implementing the health and care terminology SNOMED CT with support for cross-maps, inference, fast full-text search, autocompletion, compositional grammar and the expression constraint language.
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