...
Items | Proposed improvement | Planned Release date (*this is provisional only and is subject to change) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
1 | COVID-19 Content Content relating to COVID-19 can be viewed here SNOMED CT COVID-19 Related Content | July 2021 International Release and future releases | ||||||||
2 | Browse Content Changes for the July 2021 Release The daily build is available to review changes made to content for the July 20201 2021 release https://dailybuild.ihtsdotools.org/ Forthcoming concept inactivations, new concepts and changes to existing concepts can be reviewed using the tab 'Daily build.' | July 2021 International Release | ||||||||
3 | Implementation of the new anatomy concept model 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. 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 revision of IS_A relationships can be viewed here: https://confluence.ihtsdotools.org/display/IAP/Revision+of+IS-A+relationships+for+anatomy | July 2021 International Release and future releases | ||||||||
4 | MRCM ChangesMRCM changes will be posted here when available. Please check here for further details MRCM changes in the July 2021 release | July 2021 International Release | ||||||||
5 | 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: https://www.snomed.org/SNOMED/media/SNOMED/documents/Early-Visibility-of-Changes-to-Service-Level-Agreement-International-Content-Request-Service-(CRS)SLA_202005_MHA.pdf | July 2021 International Release | ||||||||
6 | Revision of 420040002|Fluoroscopic angiography (procedure)| and all descendants After consultation with clinical stakeholders and the Editorial Advisory Group, the following changes have been implemented:
| January 2021 International Release | ||||||||
7 | Revision of 418272005|Computed tomography angiography (procedure)| and all descendants After consultation with clinical stakeholders and the Editorial Advisory Group, the following changes have been implemented:
| January 2021 International Release | ||||||||
8 | Inactivation of 206002004|Fetal or neonatal effect of maternal medical problem (disorder) 206002004|Fetal or neonatal effect of maternal medical problem (disorder)| and descendants has been inactivated. Replacement concepts that do not include 'or' in the descriptions have been added as subtypes of 70591005|Fetal disorder (disorder)| and 22925008|Neonatal disorder (disorder)|. | January 2021 International Release | ||||||||
9 | Disorder X without Disorder Y The vast majority of existing X without Y concepts originated from ICD-9 with the specific meaning of "X disorder without mention of Y disorder". As the phraseology indicates a lack of data about disorder Y as opposed to a specific exclusion, this type of concept has not been included in ICD-10, nor proposed for ICD-11, except in the case of "Traumatic brain injury without open intracranial wound". Addition of new X without Y concepts may only be made under the following conditions:
For the most part, existing X without Y concepts will be inactivated as AMBIGUOUS with a historical MAY BE relationship to "X disorder". Exceptions to inactivation will be made on a case-by-case basis. | January 2021 International Release and future releases. | ||||||||
10 | Contact Dermatitis We are reviewing and updating the modeling for concepts in this sub-hierarchy to adhere with a newly constructed template. As part of this review, and in consultation with clinical stakeholders, we are identifying and inactivating concepts that are ambiguous or are not clinically useful. The list of inactivated concepts can be tracked via https://dailybuild.ihtsdotools.org/ | January 2021 International Release | ||||||||
11 | 12456005 |Iatrogenic disorder (disorder) Subtypes of 12456005 |Iatrogenic disorder (disorder)| that do not have the word iatrogenic in the FSN have been remodeled so that they are no longer a subtype of this concept. New subtypes have been added to 12456005 |Iatrogenic disorder (disorder)| where the disorder specifies iatrogenic in the FSN. | January 2021 International Release | 12 | Inactivation of ‘unilateral’ content Unilateral concepts where there is ambiguity in meaning are to be inactivated with a status of ambiguous, this includes for example:
Replacement left and right concepts are being created where suitable. Please note, vision impairment concepts e.g. |Better eye: severe visual impairment, Lesser eye: profound visual impairment (disorder)|, |Profound impairment, one eye (disorder)| will not be replaced. | ||||||
Breeds There are >3000 concepts in the organism hierarchy related to various breeds. These concepts will be inactivated from the International release and moved to the veterinary extension. Based on the editorial guidelines, breeds are restricted to the veterinary domain. | July 2021 International Release | |||||||||
7 | Inactivation and replacement of neoplastic morphology concepts containing ICD-O-3 classification terming Some ICD-O version 3 morphology classification codes include Not Otherwise Specified (NOS), these concepts are not acceptable in SNOMED CT as per Editorial Guidance and are not meaningful outside of the ICD-O classification context. In the current 400177003 |Neoplasm and/or hamartoma (morphologic abnormality)| sub-hierarchy there are approximately 75 neoplastic morphology concepts containing the terming "no International Classification of Diseases for Oncology subtype (morphologic abnormality)" and/or "no ICD-O subtype" originating from ICD-O-3 and they are utilized in the modeling of about 460 disorders in the 55342001 |Neoplastic disease (disorder)| hierarchy.
| July 2021 International Release and future releases | ||||||||
8 | Inactivation of 250171008 |Clinical history and observation findings (finding)| The primitive concept 250171008 |Clinical history and observation findings (finding)| is to be inactivated for the July 2021 release. | July 2021 International Release | ||||||||
9 | Inactivation of Content - Overdose/ Poisoning of undetermined intent The Editorial Advisory Group (EAG) has recommended inactivation of concepts which refer to overdose or poisoning of undetermined intent because it is unclear what “undetermined intent” means (e.g. not asked, refused to answer, unable to answer). Concepts which refer to overdose or poisoning of undetermined intent will be inactivated for the July 2021 International Release with a reason of Duplicate with a historical relationship to the unspecified parent. We are also reviewing and updating the modeling for concepts in the poisoning and overdose sub-hierarchies for compliance with newly constructed templates based on feedback from the Editorial Advisory Group. As part of this review, we are identifying and inactivating concepts that are ambiguous or that are not clinically useful. The list of inactivated concepts can be tracked via daily build https://dailybuild.ihtsdotools.org/ | July 2021 International Release | ||||||||
10 | Cancer Synoptic Reporting Concepts representing cancer synoptic reporting content will be added to the International release starting with the July 2021 release. Cancer synoptic reports are used by many member countries to record pathology examination of cancer specimens including the College of American Pathologists (US and Canada), Royal College of Pathology (UK), Royal College of Pathology Australasia (Australia, New Zealand), PALGA (The Netherlands), Swedish Society of Pathology, and others. This content primarily encompasses observable entity concepts and also includes supporting concepts from other hierarchies, e.g. property values. Planned areas of promotion for the July 2021 release include histologic type, histologic grade, invasion and lymph nodes. Additional promotion of content is planned for subsequent International releases. For more information about this project, please see the Cancer Synoptic Reporting Clinical Project Group here | July 2021 International Release and future releases | ||||||||
11 | Nutrition Content
| July 2021 International Release | ||||||||
12 | Updates for Teletherapy and Teleradiotherapy Concepts
| July 2021 International Release | ||||||||
13 | Update to 271422003 |Fit denture (procedure)|subhierarchy
| July 2021 International Release | ||||||||
14 | Supernumerary tooth content Approximately 69 disorder concepts <<367534004 Supernumerary tooth (disorder) will be remodeled to subsume under 371136004 Disorder of tooth development (disorder) and will have the value of their 116676008 |Associated morphology (attribute) relationship changed to 91431006 |Supernumerary structure (morphologic abnormality)|. Inactivation of 266414008 |Supernumerary tooth (morphologic abnormality) sub-hierarchy (this will be inactivation of approximately 60 concepts). | July 2021 International Release | ||||||||
15 | Updates for concepts with "pacemaker" Concepts which refer to a cardiac pacemaker but do not include "cardiac" in the FSN will be updated to include "cardiac pacemaker." If content is ambiguous as to the location of the pacemaker, then it will be inactivated and replaced. | July 2021 International Release | ||||||||
16 | 41969006 |Idiopathic disease (disorder) The almost 350 disorder concepts that specify ‘idiopathic’ in the FSN will be remodeled to have 41969006 |Idiopathic disease (disorder)| as a supertype. | July 2021 International Release | ||||||||
17 | Inactivation of subtypes of 267280004 |Venous complication of pregnancy and/or puerperium (disorder)| Classification-derived descendants of 267280004 |Venous complication of pregnancy and/or puerperium (disorder)| are being inactivated. For example, |Superficial thrombophlebitis in pregnancy and the puerperium - delivered with postnatal complication (disorder)| | July 2021 International Release | ||||||||
18 | Inactivation of 3 ambiguous concepts in the body structure hierarchy: 303295006 |Choroidal and/or retinal structures (body structure)| 721949003 |Structure of choroid and/or retina of left eye (body structure)| 721948006 |Structure of choroid and/or retina of right eye (body structure)|
| July 2021 International Release and future releases. | ||||||||
19 | Inactivation of 19410003 |Macrocephaly (disorder)| and 1829003|Microcephalus (disorder)| 19410003 |Macrocephaly (disorder)| has been inactivated and replaced by two concepts:
1829003|Microcephalus (disorder)| has been inactivated and replaced by two new concepts
| July 2021 International Release | ||||||||
20 | Inactivation of 34248003 |Rheumatic inflammation (morphologic abnormality)| and 103628006 |Chronic rheumatic inflammation (morphologic abnormality)| Inactivation of 34248003 |Rheumatic inflammation (morphologic abnormality)| and 103628006 |Chronic rheumatic inflammation (morphologic abnormality)|. Remodeled: 23685000 |Rheumatic heart disease (disorder)| and subtypes, and 195528001 |Acute rheumatic fever (disorder)| and subtypes. A model was developed for rheumatoid arthritis extra-articular manifestations (with expert input), and relevant concepts remodelled utilising parent concept 52661003 |Extra-articular rheumatoid process (disorder)| . | July 2021 International Release | ||||||||
21 | Disorder X without Disorder Y The vast majority of existing X without Y concepts originated from ICD-9 with the specific meaning of "X disorder without mention of Y disorder". As the phraseology indicates a lack of data about disorder Y as opposed to a specific exclusion, this type of concept has not been included in ICD-10, nor proposed for ICD-11, except in the case of "Traumatic brain injury without open intracranial wound". Addition of new X without Y concepts may only be made under the following conditions:
For the most part, existing X without Y concepts will be inactivated as AMBIGUOUS with a historical MAY BE relationship to "X disorder". Exceptions to inactivation will be made on a case-by-case basis. | July 2021 International Release and future releases. | ||||||||
22 | Update Descriptions for Subtypes of 418272005|Computed tomography angiography with contrast (procedure)| Update to the descriptions for CT arteriography and CT venography concepts in the procedure hierarchy to align with the editorial guide for Computed Tomography - CT. | July 2021 International Release | ||||||||
23 | Inactivation of subtypes of 77477000|Computerized axial tomography (procedure)| 303678006 |Computed tomography of regions (procedure)| has been inactivated with reason ambiguous and Possibly equivalent to 77477000 |Computerized axial tomography (procedure)| 303679003 |Computed tomography of systems (procedure)| has been inactivated with reason ambiguous Possibly equivalent to 77477000 |Computerized axial tomography (procedure)| | July 2021 International Release | ||||||||
24 | Content Improvements in the Substance and Product Hierarchies Please see briefing notes here Drugs Project For the July 2021 International edition of SNOMED CT, the following changes will be made:
The following editorial guides are now available via the SNOMED CT Document Library:
See: https://confluence.ihtsdotools.org/display/DOCEG Please contact info@snomed.org with any inquiries. | July 2021 International Release | ||||||||
25 | Content Improvements in the Physical Object Hierarchy Please see project roadmap and briefing notes here: https://confluence.ihtsdotools.org/display/IAP/Devices+Project Content inactivations are planned for July 2021 International release:
Physical object concepts that are described as a kit or set have been inactivated with reason 'nonconformance to editorial policy' without a replacement concept. Exceptions are noted in the editorial guidelines for the Physical object hierarchy. New attribute types for Has absorbability quality, Has surface quality, Is sterile, and Has coating material will be added for 2021-July. Existing attribute types for Has surface characteristic and Has device characteristic will be inactivated. Further details are available in the briefing note posted on the Device Project space (Devices Project) and will be added to the organizing principles in the near future. Please contact info@snomed.org with any inquiries. | July 2021 International Release | ||||||||
26 | ||||||||||
13 | Allergy to X vaccine/Adverse reaction to X vaccine Editorial guidelines and content for the concept pattern "Allergy to X vaccine" and also “Adverse reaction to X vaccine" have been updated for the 2021-January Release. Editorial Guidelines will be added to the corresponding version of the main SNOMED Editorial Guide; in the meantime, they can be accessed under the announcements section at: Drugs Project. | January 2021 International Release | ||||||||
14 | Content Improvements in the Substance and Product Hierarchies Please see briefing notes here Drugs Project Please contact info@snomed.org with any inquiries. | January 2021 International Release | ||||||||
15 | Inactivation of 349362006 |Medical gases (product) The concept 349362006 |Medical gases (product)| has been inactivated with reason of outdated. Descendants have been remodeled per existing Medicinal Product editorial guidelines please see Reference Documentation - Medicinal Product Model Changes will be visible via the DailyBuild Browser after 1-September 2020. | January 2021 International Release | ||||||||
16 | Changes for 318331000221102 |Active immunity stimulant therapeutic role (role) 318331000221102 |Active immunity stimulant therapeutic role (role)| updated based on feedback received and with agreement from Drugs WG:
Changes can be viewed via DailyBuild Browser | January 2021 International Release | ||||||||
17 | Inactivation of 346348003 |Blood derivative product (product)| High-level grouper 346348003 |Blood derivative product (product)| has been inactivated based on agreement from Drug WG; the descendants have been reviewed and remodeled using the existing medicinal product concept model. | January 2021 International Release | ||||||||
18 | Inactivation of Vaccine product "containing" groupers Vaccine product "containing" groupers that are modeled with more than one active ingredient or with an active ingredient that is a substance modification have been inactivated as out of scope per the editorial guidelines. | January 2021 International Release | ||||||||
19 | Inactivation of 81118006 |Gonadal hormone (substance)| and remodeling of sub-hierarchy As part of the Substance hierarchy maintenance, 81118006 |Gonadal hormone (substance)| has been inactivated and replaced with 312263009 |Sex hormone (substance)|. The concepts previously subsumed by Gonadal hormone are under review and remodeling. As part of this review, and in consultation with subject matter experts, we are identifying and inactivating concepts that are ambiguous or that are not clinically useful. | January 2021 International Release | ||||||||
20 | Content Improvements in the Physical object Hierarchy Please see project roadmap and briefing notes here: https://confluence.ihtsdotools.org/display/IAP/Devices+Project Please contact info@snomed.org with any inquiries. | January 2021 International Release | ||||||||
21 | Inactivation of Fracture of vertebra without spinal cord lesion (disorder) and descendants Based on input from the Editorial Advisory Group and a member stakeholder: 269061001 |Fracture of vertebra without spinal cord lesion (disorder)| and descendants have been inactivated with a status of 'Ambiguous' and the historical association POSSIBLY EQUIVALENT TO = 50448004|Fracture of vertebral column (disorder)|. These concepts originated from ICD-9 to represent the notion of "Fracture of X without mention of Y". This type of term is not represented in ICD-10 or ICD-11. As "without mention" is not semantically equivalent to "without" and could mean that the information was not available in the record abstraction, these concepts are considered to be ambiguous in their meaning. | January 2021 International Release | ||||||||
22 | Revision of 253546004|Left ventricular outflow tract obstruction (disorder)| and 253530007 |Right ventricular outflow tract obstruction (disorder)| Occurrence 'congenital' has been removed from these two concepts with remodel of subtypes. | January 2021 International Release | ||||||||
23 | Inactivation of 25674000 Lichen sclerosus et atrophicus (disorder) and remodeling of sub-hierarchy As part of the QI project, 25674000 Lichen sclerosus et atrophicus (disorder) has been inactivated as outdated and replaced with new concept 895454001 Lichen sclerosus (disorder). A new morphology concept 895217008 Lichen sclerosus (morphologic abnormality) has been created and used to remodel the new concept and 20 descendants. This improvement has resulted in 895454001 Lichen sclerosus (disorder) having no stated subtypes (with all Sufficiently Defined where possible). | January 2021 International Release | ||||||||
24 | Inactivation of Subtypes of 372148003|Ethnic group (ethnic group)| Concepts which include "other" or relate to UK census have been inactivated from the International release and moved back to the UK extension. | January 2021 International Release | ||||||||
25 | Inactivation of 362955004|Inactive concept (inactive concept)| 362955004|Inactive concept (inactive concept)| and its seven descendants will be inactivated with a historical relationship to its replacement. 362955004|Inactive concept (inactive concept)| and descendants were used in the first release format (RF1) however these concepts are no longer used in the current release format (RF2). | January 2021 International Release | ||||||||
26 | Inactivation of Tooth Anatomy Concepts The Dentistry Clinical Reference Group has recommended inactivation of the following concepts due to the potential to pose a clinical risk:
The concepts have been inactivated with reason 'ambiguous' and a historical association target of the permanent and deciduous tooth. For example: Structure of mandibular left lateral incisor tooth (body structure) has been inactivated as ambiguous and replaced by Structure of deciduous mandibular left lateral incisor tooth (body structure) and Structure of permanent mandibular left lateral incisor tooth (body structure). | January 2021 International Release | ||||||||
27 | 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.The plan is to update the Editorial Guide and all concepts that are currently modeled as uncovered between the modeling of 'Co-occurrent and due to' starting from the July 2019 release. | January 2021 International Release and future releases | ||||||||
28 | 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 2021 International Release and future releases | ||||||||
29 | Changes for 'On examination' (O/E) and 'Complaining of' (C/O) concepts
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: | Content inactivation - January 2021 International Release | ||||||||
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. 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. | July 2021 International Release and future releases | |||||||||
27 | 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. | July 2021 International Release and future releases | ||||||||
2830 | 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: | January July 2021 International Release | ||||||||
3129 | Planned changes for 'Has ingredient characteristic’ and 'Has product characteristic’ and 'Has device characteristic' attributes Based on guidance provided by the Editorial Advisory Group, the the 'Has ingredient characteristic', 'Has product characteristic' and 'Has product device characteristic' attributes will be refined to more specific attributes in a future release. | July 2021 International Release and future releases. | ||||||||
3230 | Concrete Domains and Numeric Representation The Modeling Advisory Group is working on concrete domains and how they will be represented in the inferred RF2 relationship file format. The following is a note on the interim solution relating to concrete domain for the medicinal product model: 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. We are in progress for the development of 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. The further information about current progress on Concrete Domains can be found at: https://confluence.ihtsdotools.org/display/mag/Modeling+Advisory+Group February 2021 SNOMED CT International Edition Concrete Domains Technical Preview release available | January 2021 Technical Preview July 2021 International Release and future releases. | ||||||||
3331 | 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. |
...