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Items | Proposed improvement | Planned Release date (*this is provisional only and is subject to change) | ||||||||||
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1 | COVID-19 Content Changes - Interim Release March 2020 (and subsequently in the July 2020 International Edition Release) An INTERIM International Edition Release has been created as part of the ongoing global effort to tackle the Coronavirus outbreak and includes the updated Coronavirus descriptions for Members and implementers. The full International Edition Release package containing changes to the content detailed in the news item (https://www.snomed.org/news-and-events/articles/changes-coronavirus-descriptions) under the following conditions:
A set of new components have been added for the March 2020 Interim release:
| March 2020 Interim International Release + ALSO IN THE July 2020 International Edition Release | ||||||||||
2 | July 2020 International Edition Release format The current plan is to publish the formal July 2020 International Edition with the March 2020 Interim release as the official "previous published release". This means that all COVID-19 content published in the March 2020 release will be present in both July 2020 Snapshot and Full files, with an effectiveTime of 20200309. The Delta files will be relative to March 2020, containing only new contentfrom the July 2020 editing cycle, and will not duplicate the Delta file content from the March 2020 release.
PLEASE PROVIDE ANY FEEDBACK ON THIS PROPOSAL ASAP, IN ORDER TO FACILITATE COMPREHENSIVE PLANNING FOR THE JULY 2020 RELEASE. | July 2020 International Edition Release | ||||||||||
3 | Browse Content Changes for the January July 2020 Release The daily build is available to review changes made to content for the January July 2020 release https://dailybuild.ihtsdotools.org/ Forthcoming concept inactivations, new concepts and changes to existing concepts can be reviewed using the tab 'Daily build.' | January July 2020 International Release | 2||||||||||
4 | Implementation of 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 completion of the revision of hierarchical relationships provides stable anatomy content and improves the quality of classification results in other hierarchies. Over forthcoming releases, the plan is to implement the new anatomy concept model and release the changes in January 2021. There are almost 35,000 anatomy concepts and they will be modeled by different types of 'part of' relationships. The new model will enable us to automatically generate hierarchies to further improve quality and consistency. Information about the work completed in previous release for | Information about revision of IS_A relationships can be viewed here: | https://confluence.ihtsdotools.org/display/IAP/Revision+of+IS-A+relationships+for+anatomy | July 2020 International Release and future releases | |||||||
5 | Revision of the cell hierarchy Over forthcoming releases, descendants of 4421005 |Cell structure (cell structure)| will be updated according to the SEP model. SEP description patterns will be applied to the existing content. Descendants of 362837007 |Entire cell (cell)| will be updated to include the word ‘entire’ in all descriptions. The semantic tag ‘(cell)’ will be changed to ‘(cell structure)’. Descriptions for the rest of the concepts will be updated to include the word ‘structure’. This modeling improvement will address the missing relationship between structure and entire concepts. Please contact info@snomed.org with any inquiries or to submit feedback. | July 2020 International Release and future releases. | ||||||||||
6 | 3 | MRCM Changes Please see: MRCM changes in for the January July 2020 release | January July 2020 International Release | |||||||||
47 | Quality Initiative Information about the project can found here - Quality Initiative - Progress Note: There are changes to the Service Level Agreement for the CRS as a result of the Quality Initiative: | January July 2020 International Release | ||||||||||
5 | Changes to Case Sensitivity Over 31,000 descriptions have been reviewed and approximately 5,402 descriptions across 2806 concepts have had their case significance settings corrected as appropriate. The Editorial Guidance on case significance related to descriptions containing numeric values and special characters has been updated for the January 2020 release. | January 2020 International Release | ||||||||||
8 | Top level groupers/Allergen classes in substance hierarchy Based on recommendation by the Allergies CRG, deprecation of top level groupers/Allergen classes in substance hierarchy, which has been partially done for Jan 2019 release, will be completed for July 2020 release. Changes to Subtypes of 419199007 |Allergy to substance (finding) As part of the QI project review of the 419199007 |Allergy to substance (finding)| sub-hierarchy and per the Allergies CRG recommendation, the concepts in this sub-hierarchy that represent allergy to "role groupers" and "Structure + role groupers" will be inactivated starting from the July 2020 release. A few examples of these concepts are provided below:
| July 2020 International Release and future releases. | ||||||||||
9 | Content Improvements in the Substance and Product Hierarchies Please see briefing notes here Drugs Project Please contact info@snomed.org with any inquiries. | July 2020 International Release | ||||||||||
10 | Content Improvements in the Physical object Hierarchy Please see briefing notes here https://confluence.ihtsdotools.org/display/IAP/Devices+Project Please contact info@snomed.org with any inquiries. | July 2020 International Release | ||||||||||
116 | 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 The plan is to update the Editorial Guide and all concepts that are currently modeled as 'Co-occurrent and due to' starting from the July 2019 release. | January July 2020 International Release and future releases | ||||||||||
712 | WAS_A Inactivation reason of LIMITED/WAS_A is not allowed for any new content inactivations after the July 2018 release. The WAS_A association refset has not been updated thereafter. At the Editorial Advisory Group meeting in April 2019, agreement was reached to discontinue the maintenance of WAS_A relationships when inactivating concepts that have a historical association to an inactive concept. When changes are made to a historical relationship for a concept that was previously inactivated using WAS_A, effort will be made to assign a new historical relationship that facilitates traceability of the concept (e.g. DUPLICATE or AMBIGUOUS) as opposed to NON-CONFORMANCE TO EDITORIAL POLICY. Existing WAS_A relationships will be inactivated in a future release once a plan for batch reassignment of historical relationships has been developed. Until then, SNOMED International will not continue to use or maintain WAS_A relationships. | January July 2020 International Release and future releases | ||||||||||
8 | Known Content Issues July 2019 Release Approximately 149 text definitions are missing either a US or GB spelling variation. These are all legacy issues that will be rectified in the January 2020 release. A small set of disorder concepts have been identified with descendants that have a semantic tag of clinical finding. A further small set of concepts have been identified that have a semantic tag of disorder but are not descendants of 64572001|Disease (disorder)|. These concepts are all legacy issues that will be rectified in the January 2020 release. Release validation rules have been enhanced to prevent recurrence of legacy issues for future content additions. | January 2020 International Release | ||||||||||
13 | 9 | Changes for 'On examination' (O/E) and 'Complaining of' (C/O) conceptsJan 2020 release:
July 2020 release:
Content being inactivated will use the reason - component moved elsewhere. Note: some concepts will not have a replacement concept as they are groupers. For example: | January 2020 International Release July 2020 International Release | |||||||||
10 | Inactivation of 33359002 |Degeneration (morphologic abnormality)| In order to distinguish the degenerative process from the structure, 33359002 |Degeneration (morphologic abnormality)| has been inactivated as a DUPLICATE, SAME AS 107669003 |Degenerative abnormality (morphologic abnormality)|. All morphologies in the disorder hierarchy have been replaced accordingly. 107669003 |Degenerative abnormality (morphologic abnormality)| 33359002 |Degeneration (morphologic abnormality)| | January 2020 International Release | ||||||||||
11 | Inactivation of 23583003 |Inflammation (morphologic abnormality) In order to distinguish inflammatory process from structure, 23583003 |Inflammation (morphologic abnormality)| has been Inactivated as DUPLICATE, SAME AS 409774005 |Inflammatory morphology (morphologic abnormality)|. All concepts in the Inflammatory disorder hierarchy have been remodeled accordingly. | January 2020 International Release | ||||||||||
12 | ICD-O project work IACR have released ICD-O-3.2 as a listing of all new additions, changes and revisions to ICD-O-3.1 in Excel format. The new version, ICD-O-3.2, is recommended for use from 2020. ICD-O-3.2 is not yet available online or in book format. In preparation for the update, the changes have been divided into types and are being investigated/addressed in the ICD-O-3.2 update project. The priority is being given to those that have an impact on clinical safety, e.g., changes of behaviour (benign, malignant etc.) and adding new content for SNOMED CT morphologies, this refers to the 400177003 |Neoplasm and/or hamartoma (morphologic abnormality)| hierarchy. The descriptions with [obs] have been inactivated as outdated because they are artefacts of descriptions from the ICD-O-3 print version for their history tracking. The maps to ICD-O-3.1 are being updated only for error correction purposes for the January 2020 release. The maps to ICD-O-3.2 are out of scope for the January 2020 release and are planned for a future release. | January 2020 International Release | ||||||||||
13 | Over the Counter Concepts referring to “over the counter” status have been inactivated. Concepts referring to regulatory status or characterization (e.g. over the counter) are out of scope for the International Release since the meaning may vary by jurisdiction and is not consistent internationally. | January 2020 International Release | ||||||||||
14 | Antigens Required for the Vaccine Products As a Vaccine project work item and based on requests submitted mutually by Argentina and Canada, new antigen concepts (~150) have been added to the Substance hierarchy to be used in the modeling of vaccine products in a future release. | January 2020 International Release | ||||||||||
15 | Vaccine Poisoning Concepts referring to vaccine poisoning have been inactivated from the International release and moved to the NHS extension per their request. The notion of vaccine poisoning has persisted in ICD 10 under T50 but it is not included in ICD-11; the poisoning aspect seemingly referred to the adjuvants and carriers that are included in the vaccines as opposed to the biological component itself. | January 2020 International Release | ||||||||||
Complete new content additions - July 2020 International Release Content inactivation - January 2021 International Release | ||||||||||||
1416 | Traumatic Dislocation Traumatic dislocation concepts are being remodeled according to the new representation using DUE TO "Traumatic event". This work has been partially completed for the Jan 2020 release, resulting in the remaining subhierarchies moving from under "Traumatic dislocation of joint" to "Dislocation of joint". These remaining subhierarchies will be remodeled for the July 2020 release. | January July 2020 International Release July 2020 International Release | ||||||||||
17 | Revision of 298180004 |Finding of range of joint movement (finding) The concepts under the subhierarchy 298180004 |Finding of range of joint movement (finding)| are being remodeled to represent the finding site of <<785818007 |Structure of joint region (body structure)| instead of <<39352004 |Joint structure (body structure)|. Range of movement of a joint region can be impacted by both bone and soft tissues, therefore the use of 39352004 |Joint structure (body structure)| was too restrictive and caused issues in other areas of the terminology. These changes will be made over the course of two releases due to the number of affected concepts. | July 2019 International Release January 2020 International Release | ||||||||||
15 | Spinal Cord Syndrome A new concept 840721004| Incomplete spinal cord syndrome (disorder) has been created as a grouper parent to thefour major subtypes of this syndrome: 282785008 |Anterior cord syndrome (disorder)| 27982003|Brown-Séquard syndrome (disorder)| 282786009 |Posterior cord syndrome (disorder)| 282787000 |Central cord syndrome (disorder)| In prior releases these syndromes had been modeled with an ASSOCIATED MORPHOLOGY = 19130008|Traumatic abnormality (morphologic abnormality)|; however, these syndromes may present due to non-traumatic etiologies such as space filling lesions (tumors, etc.) or vascular compromise (occlusions, ruptures, etc.). These syndromes have been remodeled with ASSOCIATED MORPHOLOGY = 52988006|Lesion (morphologic abnormality)|. Incomplete cord syndromes with a traumatic cause have been remodeled to specifically represent773760007 |Traumatic event (event)| as the DUE TO value as well as any other relationships to describeassociated disorders (e.g. fractures or dislocations). | July 2020 International Release | ||||||||||
1618 | Planned changes to Implantation and Insertion procedures Work commenced on content tracker IHTSDO-175 Ongoing structural changes for the Procedure concepts related to the content tracker: It was agreed that not all Insertion and Implantation procedures are surgical. As a result, further work in the hierarchy under 129284003 |Surgical action (qualifier value)| has been undertaken for the January 2020 release and this includes: Work on this project will continue for future releases after January 2020. | January 2020 International Release | July 2020 International Release | |||||||||
17 | Other Occupations Concepts representing "other" occupations e.g. 79445009 |Other clerk (occupation)| have been inactivated for the July 2020 release as these represent classification constructs. | July 2020 International Release | ||||||||||
1819 | Replacement of the Stated Relationship files with the new OWL Axiom refset files A set of documentations has been developed to support the Logic Profile Enhancements.
For any questions, please contact SNOMED International at support@snomed.org with “OWL Axiom refset files implementation question” in the subject line. |
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