Overview of Current Notices
For additional Relevant links with regards to Content Development Information please click here Content Development Information
| Items | Proposed improvement | Planned Release date (*this is provisional only and is subject to change) |
|---|---|---|
| 1 | LOINC timeline changes - please refer to Roadmap link here LOINC | July 2018 and potentially other future releases - On hold |
| 2 | Revision of IS A relationships for anatomy concepts The new anatomy concept model implemented the enhanced Description Logic features, e.g. reflexive and transitive properties, additional axioms, for consistent logical modeling. The inferred IS A relationships from the OWL anatomy ontology have been reviewed and the changes have been implemented in the production. The potential impact to other hierarchies, such as disorders, procedures, observables, situations etc are also reviewed as part of the project. The revision of sub-hierarchy 26107004|Structure of musculoskeletal system (body structure)| has been planned for the January 2019 release. The rest body systems will be revised in the future releases. The subject area for revision of IS A relationships will be determined and updated in the following confluence page. | January 2019 International Edition |
| 3 | Summary of Drugs changes Groupers (disposition, structural)
MP-containing
MP-only New concepts created (n≈3800) MPF-containing
MPF-only New concepts created (n≈2800) Clinical drug Synonyms matching FSN removed for existing concepts (n≈4900) Role:
New semantic tags, attribute and hierarchies added and MRCM change made to support National Extension Model.
Updated briefing: Briefing note - Implications of describing liquid dose form product concepts v2, can be found on second table of this page Reference Documentation - Medicinal Product Model | January 2019 International Edition |
| 4 | Summary of Substances Changes
| January 2019 Release |
| 5 | Remodeling of hypersensitive conditions
Hypersensitivity, allergy and pseudoallergy condition are modelled by general concept inclusion (GCI) axioms. The relationships in the GCIs are sufficient conditions which are excluded from the inferred relationships. The GCIs in the OWL axiom refset must be used with stated relationship file to enable correct classification for hypersensitivity conditions. In addition to the changes to the concept model, the FSNs and Preferred terms will be updated to ensure consistent description patterns. The changes are word order in descriptions and they do not change the meaning. For example, Amoxicillin allergy (disorder) would be changed to Allergy to amoxicillin (disorder). changes in the substance hierarchy as the result of Allergy project requirements (Allergies-30 and Allergies-32):
| |
| 6 | Summary of Organism Changes
| January 2019 Release |
| 7 | Quality improvements on Clinical Findings
| Jan 2019 International Edition |
| 8 | Replacement of OWL conversion script with a link to the open source directory In January 2017 the original OWL conversion script (a.k.a. the "Spackman OWL script") was removed from the International Edition package, and has since been published as a separate artefact alongside each Release. Because this script does not recognize the two new OWL refsets (see section 3.3.2 of these Release Notes), the Terminology Release Advisory Group has determined that the script should no longer be distributed. Going forward, Release Notes will now include a link to the new open source OWL conversion toolkit that can be found in the following repository (including documentation on its use): https://github.com/IHTSDO/snomed-owl-toolkit Please contact SNOMED International at support@snomed.org if you would like to provide any feedback on ways to extend and improve the new toolkit. | July 2018 International Edition |
| 9 | Deprecation of the Technical Guide Exemplars document from the International Edition release package The Terminology Release Advisory Group has confirmed that there should be no impact from removing this almost entirely static document from the International Edition release package, and hosting it instead in a Confluence Page. From the July 2018 International release then, we will deprecate this file (doc_Icd10MapTechnicalGuideExemplars_[date].xlsx) from the Release package, and instead provide a link in the Release Notes to the new Confluence Page. Please see section 2.4.1.3 of the Release Notes for the relevant link. | July 2018 International Edition |
| 10 | Replacement of the Stated Relationship files with the new OWL Axiom refset files Following the feedback, the normal stated relationship file will still be available in the January 2019 release package and the partial OWL axiom refset will include all description logic features that cannot be represented in the stated relationship file. The complete OWL axiom reference set, which includes all logical definitions and the enhanced DL features, will be available on request in the January 2019 release. In the July 2019 release, the stated relationship file will be replaced by the complete OWL Axiom refset file. The stated relationship file will NOT be included in the international release; however, it may still be available on request to support migration to the OWL Axiom refset. IMPORTANT NOTE FOR USERS Users should carefully analyse any potential impact to their systems (upload routines, etc) and make provisions for these changes urgently (if not already done), in order to prevent any issues when these changes come into effect in January 2019. Please contact SNOMED International at support@snomed.org with “OWL Axiom refset files implementation question” in the subject line.
The inferred relationship file will maintain the same format and structure, though it will no longer contain all necessary and sufficient conditions. The inferred relationship file is represented in Necessary Normal Form for distribution of relationships. It is a collection of all the necessary conditions and represents a subset of the full semantics from the 2018 July release and onwards. Most users will benefit from the improvements in the inferred relationships without requiring changes to their existing systems. A set of documentations has been developed to support the Logic Profile Enhancements.
| January 2019 International Edition |