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Type
Standards Development Organisation

Formerly known as the International Health Terminology Standards Development Organisation (IHTSDO), SNOMED International is a not-for-profit standards development organisation that develops and administers SNOMED CT. SNOMED CT is a comprehensive clinical terminology codified language that represents groups of clinical terms and provides the core general terminology for electronic health records.  

SNOMED CT or SNOMED Clinical Terms is a systematically organised computer-processable collection of medical terms providing codes, terms, synonyms and definitions used in clinical documentation and reporting. It encodes the meanings that are used in health information including clinical findings, symptoms, diagnoses, procedures, body structures, organisms and other etiologies, substances, pharmaceuticals, devices and specimens. SNOMED CT-AU, released in December 2009 in Australia, is based on the international version of SNOMED CT, but encompasses words and ideas that are clinically and technically unique to Australia.

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Find more information on SNOMED governance and advisory.

Resources

Diagramming Guideline

Category
User guide
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
October 2021
This document describes a diagrammatic notation for representing the definition of a concept, an expression, or the relationship between expressions.

Expression Constraint Language - Specification and Guide

Category
User guide
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
November 2023
This document defines a formal language (syntax) for representing sets of clinical meanings using SNOMED CT expression constraints.

Extensions Practical Guide

Category
User guide
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
May 2023
This document is a practical guide for extension producers. It presents the purpose, process and principles of creating, distributing and managing SNOMED CT extensions.

SNOMED CT Compositional Grammar Specification and Guide v2.4

Category
User guide
Organisation
SNOMED
Type
Standard
Version
2.4
Access
Open
Status
Active
Created
November 2020
The SNOMED CT Starter Guide is a starting point for learning about SNOMED CT. This guide defines and describes a formal compositional grammar used to represent SNOMED CT expressions as a plain text string.

SNOMED CT Editorial Guide

Category
User guide
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
2024
This document provides detailed information about the rules by which SNOMED CT international content is authored. It describes SNOMED CT's scope, hierarchies, authoring principles, style guidance and concept model rules.

SNOMED CT Medicinal Product Model Specification v4.0

Category
Technical Specification
Organisation
SNOMED
Type
Standard
Version
4
Access
Open
Status
Active
Updated
November 2021
SNOMED CT is a standard for data elements used in the electronic exchange of clinical information. This document specifies the concept model for representation of pharmaceutical and biological products in the international edition of SNOMED CT.

SNOMED CT OWL Guide

Category
User guide
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
January 2022
This document is a guide to the use of the Ontology Web Language (OWL) in SNOMED CT. It includes detailed information about the structure, content and use of OWL reference sets.

SNOMED CT Release File Specifications

Category
Technical Specification
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
February 2022
This document specifies the file formats in which SNOMED CT is distributed.

SNOMED CT Starter Guide v2023

Category
User guide
Organisation
SNOMED
Type
Standard
Version
2023
Access
Open
Status
Active
Updated
April 2023
This SNOMED CT starter guide provides a foundation and overview of relevant topics with reference to resources for further learning.

URI Standard

Category
Standard
Organisation
SNOMED
Type
Standard
Access
Open
Status
Active
Created
2021
This document defines a standard format of URIs (uniform resource identifiers) for identifying various SNOMED CT artefacts, including components and RF2 releases.