Healthcare data tools built by Turnstone LTD
Build, save, version and export custom medical value sets from standard vocabularies including ICD-10, CPT, HCPCS, and more. Designed for clinical researchers, data engineers, and healthcare analysts who need precise, reproducible clinical value sets.
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Meridian delivers enterprise-grade medical value set libraries built on OHDSI vocabularies, UMLS terminology, and FHIR-compliant exports — purpose-built for pharma real-world evidence teams who need defensible, audit-ready definitions.
Meridian is a deterministic, high-performance engine designed to bridge the gap between high-level clinical intent and the messy reality of legacy medical data. While modern research increasingly relies on standardized models, 90% of the world's healthcare data still lives in source ehr data models with native vocabulary codes.
Meridian is the bridge that allows researchers to build sophisticated, reproducible value sets for that raw data in minutes, not days.
