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SNOMED started in 1965 as a Systematized Nomenclature of Pathology (SNOP) and was further developed into a logic-based health care terminology. [6] [7]SNOMED CT was created in 1999 by the merger, expansion and restructuring of two large-scale terminologies: SNOMED Reference Terminology (SNOMED RT), developed by the College of American Pathologists (CAP); and the Clinical Terms Version 3 (CTV3 ...
In 2002 CAP's SNOMED Reference Terminology (SNOMED RT) was merged with, and expanded by, the National Health Service's Clinical Terms Version 3 (previously known as the Read codes) to produce SNOMED CT. [2] [3] Versions of SNOMED released prior to 2001 were based on a multiaxial, hierarchical classification system. [1] [4] As in any such system ...
SNOMED CT and ICD are used directly by healthcare providers during the process of care, [32] in addition, ICD can be also used for coding after the episode of care, in lower technology environments. SNOMED CT has multiple hierarchy, whereas there is single primary hierarchy for ICD-11 with alternative multiple hierarchies.
For example, SNOMED CT concept model for procedure allows linking substances to procedures using 'Direct Substance' attribute. Similarly, the ICHI allows postcoordination with devices or substances. As a result, the scope for the set of relationships in ICHI is broader than in SNOMED CT, due to the common foundation with ICD-11.
It includes references to existing international standards such as ICD-10, ICD-11, ICF as well as SNOMED CT clinical terminology. It provides a framework for documenting and organizing clinical data from primary care patient contacts. The ICPC-3 includes codes for the four key elements of healthcare encounters: the reason for the encounter (RFE);
With a nomenclature, for example SNOMED CT, there is a separate listing and code for every clinical concept. So, in the tachycardia example above, each type and clinical term for tachycardia would have its own code listed. This makes nomenclatures unwieldy for compiling health statistics.
Read codes are a clinical terminology system that was in widespread use in General Practice in the United Kingdom until around 2018, when NHS England switched to using SNOMED CT. Read codes are still in use in Scotland and in England were permitted for use in NHS secondary care settings, such as dentistry and mental health care until 31 March 2020.
IHTSDO was founded in 2007 by 9 charter member countries (Australia, Canada, Denmark, Lithuania, Sweden, the Netherlands, New Zealand, the United Kingdom and the United States) in order to acquire the rights of SNOMED CT from the College of American Pathologists (CAP) and make the development of a global clinical language for healthcare an ...