WIP SNOMED CT Implementation Guide for Allergy, Hypersensitivity and Intolerance

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  • 3. Allergy Content in SNOMED CT

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This chapter presents the content within SNOMED CT that may be used to support the described use cases. This may include:

  • A presentation of the specific hierarchies, subherarchies, or queries (ecl's,with details in appendix) that are relevant for the scope of this project. 
  • A summary of editorial approach taken in the modeling of this content, which may support the clinicians understanding of the concepts. 
  • An introduction to the concept model applicable for the concepts of interest - especially if the concept model is central for the solution proposed in this guide. Detailed information about the concept model should be documented in an appendix and links to the source Editorial Guide should be provided.
  • A description of relevant terming guidelines.

For all of the above, examples should be included. 

Please note that the title of this section may be updated to be more descriptive in relation to the scope of this project (e.g. "Allergy Content in SNOMED CT", or "Epilepsy Content in SNOMED CT" .

Notes on target audience for this chapter:

  • This section is relevant for the clinical audience who seeks to understand how SNOMED CT, from a pure content perspective, supports the described use cases.
  • Information managers involved with the development of subsets or queries to be used within an implementation are also key stakeholders for this section. 

Diagrammatic representation in stated view of concept 419375001 |Allergic reaction caused by oil (disorder)|as in the International Edition version 20220831.

SNOMED CT concept model

The SNOMED CT concept model for allergy-related conditions has undergone significant changes (see Appendix B: Historical SNOMED CT content perspective for the history of changes). Currently, SNOMED allergy content is organized under the umbrella of hypersensitivity, which is defined by the World Allergy Organization (WAO) as “objectively reproducible symptoms or signs initiated by exposure to a defined stimulus at a dose tolerated by normal persons”. 

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