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 | Replacement of the Stated Relationship files with the new OWL Axiom refset files Following on from all of the previous announcements providing early visibility of the transition plan, SNOMED International would now like to provide technical details of the planned migration from Stated Relationships to OWL files. This plan has been discussed and agreed with numerous stakeholders from the community, and will be implemented over the course of the next two International Releases, as follows: January 2019:
July 2019:
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.
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. | January 2019 International Release + July 2019 International Release | ||
| 2 | LOINC timeline changes - please refer to Roadmap link here LOINC | July 2018 and potentially other future releases - On hold | ||
| 3 | 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 Revision of IS A relationships for anaotmy concepts The new anatomy concept model has implemented the new Description Logic features, e.g. reflective and transitive property, general concept axioms, for consistent logical modeling. However, the new model cannot be implemented in production because these DL features currently are not available in production. The implementation of them will depend on the enhanced logic profile for SNOMED CT which is under development by the Modeling AG. Yet, the inferred IS A relationship from the OWL anatomy ontology can be reviewed and implemented in the production. This will utilise the outcomes of the new anatomy model as well as evaluate the design of the new model. In particular, it is important to review the changes of IS-A relationships in anatomy for quality assurance and minimise impact to other hierarchies, such as disorders, procedures, observables, situations etc are also reviewed as part of the project. The first subject area is concepts under skin structure. Majority changes are completed in the January 2018 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 completed in July 2018 releaserevised in the future releases. The subject area for revision of IS A revision in July 2018 relationships will be determined and updated in the following confluence page. | July | 20182019 International | EditionRelease |
| 2 | Improvement to the Release package naming convention In order to ensure that the status of each package is correctly identified, we will be capitalising the third element of the naming convention. For example therefore, instead of the January 2018 International Edition release package being called: SnomedCT_InternationalRF2_Production_20180131T120000Z.zip It will instead be called: SnomedCT_InternationalRF2_PRODUCTION_20180131T120000Z.zip Alpha/Beta releases will be called: SnomedCT_InternationalRF2_ALPHA_20180131T120000Z.zip SnomedCT_InternationalRF2_BETA_20180131T120000Z.zip This should have no impact on most users, this is provided for visibility of anyone who's upload routine might be case-sensitive. | January 2018 International Edition | 3 | |
| 4 | Planned changes to 'Co-occurrent and due to' pattern During the implementation of the new Description Logic features a conflict was uncovered between the modeling of 'Co-occurrent and due to' and General Concept Inclusions (GCIs). This has resulted in the need to reconsider the modeling of "Co-occurrent and due' and update the Editorial Guide for this area. There are a number of new concepts in the January 2019 release that are based upon the existing guidance for 'Co-occurrent and due to'. The plan is to update the Editorial Guide and all concepts that are currently modeled as 'Co-occurrent and due to' for the July 2019 release. | July 2019 International Release | ||
| 5 | Planned Inactivation of 186005001|Other ethnic non-mixed (NMO)| 186005001|Other ethnic non-mixed (NMO)| and children will be inactivated with a status of MOVED ELSEWHERE. | July 2019 International Release | ||
| 6 | Summary of Substances Changes
| July 2019 International Release | ||
| 7 | Summary of Changes for the Drug Project For 2019-January, CDs that had not yet been sufficiently defined were relocated to be descendants of 770654000 |TEMPORARY parent for CDs that are not updated (product)| (n≈2700). Concepts that could not be mapped to a corresponding dm+d or RxNorm concept have been inactivated as Outdated for the 2019-July Release with a historical relationship to a corresponding MPF-only concept (or to a MP-only concept if no appropriate MPF-only concept existed at the time of inactivation). (n≈870). The remainder of the concepts (n≈1800) being reviewed and most are expected to be sufficiently defined for the 2019-July Release. Further early visibility updates will be provided as work progresses. | July 2019 International Release | ||
| 8 | Summary of Organism Changes
| July 2019 International Release | ||
| 9 | Quality Initiative Abrasion - As a result of changes made during the QI project for the January 2019 release, there are now 2 concepts which have the same preferred term. 781488002 |Abrasion of foot (finding) and 211402004 |Abrasion of foot (disorder) 782201009 |Abrasion (finding)| and 399963005 |Abrasion (disorder)| These concepts will be addressed as part the QI project for the July 2019 release. Note there are changes to the Service Level Agreement for the CRS as a result of the Quality Initiative: | July 2019 International Release | ||
| 10 | Concrete domains and numeric representation Numerics are represented by concepts in the Medicinal product concept model in SNOMED CT, which is an interim solution before the implementation of concrete domains to support data types, such as decimal, integer, string and date/time. The implementation of concrete domains depends on the OWL expression reference set and the update of inferred relationship file. The first complete OWL expression refset will be available in the July 2019 international release. It will take time to update the specification for the inferred relationship file and consult with the community of practice. When they are ready, strength in medicinal product model can be transformed to concrete domains. The transformation will be completed by technical changes without impact to classification results. | July 2019 International Release | ||
| 11 | 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 Release | ||
| 12 | 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 Release | January 2018 International Edition | |
| 4 | Summary of Drug Changes The following describes some of the deliverables scheduled for the January 2018 that continue to contribute to the delivery of this Strategy: NOTE: Numbers are still evolving and will likely change before the final version of the release notes are generated. New hierarchies
New semantic tags
New attribute types
Attribute type changes (for existing attributes) None Grouper None Medicinal product (MP) Updated ≈ 1100 existing concepts in accordance with new modeling and/or terming guidelines
Medicinal product form (MPF) Negligible number of changes Clinical drug (CD) Updated ≈ 3000 existing concepts changing terming from "Product containing X" to "Product containing only X" Note that the terming for these concepts was updated in the 2017-July release to reflect "Product containing X"; upon advice from the Working Group, we elected to notify the Member Forum, Project Group, and Working Group of the retraction/substitution rather than inactivate/replace these concepts New or updated concepts to support future simple map refset development For SNOMED CT to EDQM simple map refset:
For SNOMED CT to UCUM simple map refset:
Documentation created or updated including:
General content maintenance including:
| TBC (ongoing) | ||
| 5 | Summary of Substances Changes New hierarchies: Disposition (disposition) New semantic tags (disposition) New attribute types Has disposition Is modification of Attribute type changes Populated |Has disposition| grouper (n ≈ 150) Groupers Updated modeling, definition status, and terming for groupers representing disposition (n ≈ 150) with associated change in stated parents for existing descendants (n ≈ 9000) Briefing papers: Documentation created or updated including:
General content maintenance including:
| TBC (ongoing)