Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
A SNOMED CT component that is no longer intended for current use.
Release files contain active and inactive components to provide a historical record of the content of the terminology at different points in time.
A component is inactive when the most recent row with the relevant component.id in the full release file has the value component.active = 0 (zero). The most recent row for a component is determined based on the component.effectiveTime value.
Inactive
This is an abbreviation for intellectual property rights.
Patents, trade marks, service marks, copyright (including rights in computer software), moral rights, database rights, rights in designs, trade secrets, know-how and other intellectual property rights, in each case whether registered or unregistered and including applications for registration, and all rights or forms of protection having equivalent or similar effect in any jurisdiction.
The definition is included in Affiliate License Agreement.
SNOMED International owns the intellectual property rights of SNOMED CT.
SNOMED International is responsible for ongoing maintenance, development, quality assurance, and distribution of SNOMED CT.
Intellectual Property
IP
IPR
This is an abbreviation for International Health Terminology Standards Development Organisation.
The organization that owns, administers, and develops SNOMED CT.
The purpose of International Health Terminology Standards Development Organisation (IHTSDO) is to support safe, accurate, and effective health information exchange.
SNOMED International is the trading name for the IHTSDO.
IHTSDO is a not-for-profit organization.
IHTSDO
SNOMED International (trading name)\
A committee of the International Organization for Standardization (ISO) with a focus on Health Information and Communications Technology (ICT).
The objectives of the TC215 committee are: to enable compatibility and interoperability between independent systems; to ensure compatibility of data for comparative statistical purposes (e.g. classifications); and to reduce duplication of effort and redundancies.
This the name of the concept used to represent a subtype relationship.
A relationship that asserts that a concept is a subtype of another concept.
Subtype relationships __ are represented by relationship type 116680003 | is a| .
A subtype relationship asserts that a concept conforms to all the defining characteristics the supertype concept but also has at least one feature or refinement that distinguishes it from that concept.
Note that the distinguishing features may or may not be represented in the concept definition of the subtype concept.
Concepts are defined by a combination of subtype relationships and attribute relationships.
The table below shows an example of a subtype relationship as it appears in the three significant columns of the relationship file.
Is a
Subtype
[ 6025007
Laparoscopic appendectomy
](http://snomed.info/id/6025007 "6025007
A negative assertion of mutability.
An indication of whether a release file field value can change between two released versions of the same component or reference set member.
All released versions of the same component or reference set member have the same id (field), but each version has a different effective time (field).
If a field is mutable (Mutable=YES), its value can differ from one version to the next without changing the identifier.
If a field is immutable (Mutable=NO), its value must be the same in every version of a component. To change the value associated with an immutable field, the existing component must be inactivated and a new component must be created to replace it. The new component must have a previously unused identifier. The field values are set to replace the inactivated concept with the updated information.
The mutability for each field, in each type of release file, is indicated in the release file specification table for that component type or reference set.
Mutable
This is a synonym for Affiliate Licensee.
An organization or individual that has been issued a license to use SNOMED CT by SNOMED International.
Usage must be in accordance with the SNOMED CT Affiliate License Agreement.
Affiliate
IHTSDO Affiliate
SNOMED International Affiliate
The combination of these abbreviations sometimes refers to C-NPU.
A coded terminology used in clinical laboratory sciences.
C-NPU is maintained by the International Federation of Clinical Chemists (IFCC) in collaboration with the International Union of Pure and Applied Chemistry (IUPAC).
IFCC-IUPAC
Nomenclature, Properties and Units
NPU
An unique reference to a SNOMED CT component or reference set member.
Each SNOMED CT component is identified by a SNOMED CT identifier (SCTID) which is defined as follows:
A unique integer identifier applied to each SNOMED CT component (Concept, Description, or Relationship).
Each SNOMED CT Identifier (SCTID) includes an item identifier, a check-digit, a partition identifier and, depending on the partition identifier, it may also include a namespace identifier.
Each reference set member is identified by a Universally Unique Identifier (UUID) which is defined as follows:
A 128-bit integer used to uniquely identify information in computer systems.
Universally unique identifier are generated by widely available algorithms. They are used to identify information in computer systems world-wide.
In SNOMED CT universally unique identifiers is used to uniquely identify reference set members. Since universally unique identifiers are unique and it is unnecessary to track the issuing of identifiers for the thousands of reference set members that are needed in some implementations.
In SNOMED CT release files, universally unique identifiers are represented as a string following a standard canonical form - a 36 character string containing 32 hexadecimal digits and four hyphens. The hexadecimal digits are arranged in five groups separated by the hyphens. The first group contains 8 hexadecimal digits, the last group contains 12 and each of the three other groups contains 4. So the overall pattern is 8-4-4-4-12.
A reference set member that is no longer intended for current use.
Release files contain active and inactive reference set members to provide a historical record of the content of the terminology at different points in time.
A reference set member is inactive when the most recent row with the id in the full release file has the value reference set member.active = 0 (zero). The most recent row for a reference set member is determined based on the effectiveTime value.
Terms derived from inactive reference set members may still be present in past records but should no longer be returned by searches or user interface tools used to enter information into current records.
A concept that is no longer intended for current use.
Release files contain active and inactive components to provide a historical record of the content of the terminology at different points in time.
A concept is inactive when the most recent row with the concept.id in the full release file has the value concept.active = 0 (zero). The most recent row for a concept is based on the concept.effectiveTime value.
Inactive concepts may still be present in past records and queries but should no longer be added to newly created records.
A representation of concept definitions that is logically derived by applying a description logic classifier to the stated view.
Different inferred views can be derived from the same stated view by applying different rules that selectively exclude some types of assertions.
Different inferred views may be semantically equivalent to one another provided that assertions are only excluded if they are redundant (i.e. can be inferred from assertions that are included). However, in some cases, an inferred view may not completely represent the concept definition but may serve a specific purpose.
Before July 2018, the relationship file contained an inferred view from which redundant subtype relationships were removed. This view, known as the distribution normal form, was semantically equivalent to the stated view.
Changes introduced in the July 2018 release of the International Edition, enhanced the expressivity of the stated view by enabling use of the OWL Functional Syntax. The relationship file does not support these enhanced features but is still used to distribute an inferred view. The revised inferred view is known as the necessary normal form it is similar to the distribution normal form but does not fully represent the stated view of the concept definition.
A subset definition in which the membership is represented by a set of rules specifying the conditions for inclusion.
The SNOMED CT expression constraint language is the standard way to represent an intensional subset definition of a subset of SNOMED CT concepts.
A row in a Query Specification Reference Set is the standard way to distribute an intensional subset definition of a subset of SNOMED CT concepts.
An example of an intensional subset definition is concepts that are types of respiratory disease characterized by edema. This is represented as follows in expression constraint language: < : =
Intensionally defined subset
Extensional subset definition
Extensionally defined subset
Practical Guide to Reference Sets
The SNOMED CT Glossary is used to provide consistent definitions for terms in used in SNOMED CT documentation, E-Learning presentations and related materials.
In addition to terms that have specific meanings in relation to SNOMED CT, the glossary also includes more general words and phrases used in the healthcare, informatics and other related domains.
Completion of a major review and update with many new entries and updated definitions.
New entries have been added to the glossary from the Editorial Guide as well as from other documentation.
The format for entries has been standardized so that it begins with a single sentence definition:
The definition
starts by specifying a general class
continues by specifying differentia that distinguish that term from the general class
The formal definition is followed by the following sections:
Notes - that provide a less formal description or explanation of the defined term
Examples - that illustrate the defined term
To align with glossary practice in formal standard such as those published by ISO and CEN, the glossary has been updated to use lowercase text for all terms, except where there is a specific reason to use upper case. Upper case characters continue to be used in product names, acronyms and terms that have a specific roles in the SNOMED CT Affiliate Licence Agreement and the Articles of Association.
The glossary was published in this new format in August 2016, to as part of a planned process of document migration. At the time of publication, the material in the glossary has been carried forward from the previous publication limited changes to fit the new format.
Over the next few months the glossary will be reviewed and revised as other documents are migrated to the new platform.
Due to the current migration process some links in the document may not reach the appropriate target documents. If a link does not work correctly, please refer to the SNOMED CT Document Library to locate the relevant document.
The new format allows more frequent revisions and additions to keep the glossary up-to-date. It also enables you to provide feedback on existing glossary entries and to request additions to the glossary.
To submit suggested revisions of existing definitions, please use the feedback link at the bottom of the page containing the existing definition.
To propose additional terms and definitions that are required to understand other SNOMED CT documents and developments, please use the feedback link at the bottom of this page.
does not include the defined term (though the definition of a term consisting of more than one word may include a words from the term when specifying the general class)
Related Links - links to other glossary entries and/or related documentation
Disambiguation - where there are other potentially confusing uses of the same term (or a similar term).
Change Notices - where changes to SNOMED CT design has resulted in changes to definitions notes are added here. These notes may be removed in future versions of the glossary as they are specific to the transitional period of the changes noted.
A healthcare episode that includes the healthcare encounters of a subject of care between their admission to and discharge from a hospital ward.
This general definition applies to SNOMED International documentation but should be interpreted taking account of more specific national or organizational definitions of inpatient status. For example, in some cases transfers between wards or between healthcare providers may terminate the current inpatient episode and start a new one.
The organization that owns, administers, and develops SNOMED CT.
The purpose of International Health Terminology Standards Development Organisation (IHTSDO) is to support safe, accurate, and effective health information exchange.
SNOMED International is the trading name for the IHTSDO.
The tenth revision of the system of coding of diseases, signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or diseases, as classified by the World Health Organization (WHO).
ICD-10 is the abbreviation for the International Classification of Diseases, 10th Revision.
A version of ICD-11 was released in June, 2018, but will not be in use for reporting until 1 January 2022.
IHTSDO
SNOMED International (trading name)
This is an abbreviation for intellectual property rights.
Patents, trade marks, service marks, copyright (including rights in computer software), moral rights, database rights, rights in designs, trade secrets, know-how and other intellectual property rights, in each case whether registered or unregistered and including applications for registration, and all rights or forms of protection having equivalent or similar effect in any jurisdiction.
The definition is included in Affiliate License Agreement.
SNOMED International owns the intellectual property rights of SNOMED CT.
SNOMED International is responsible for ongoing maintenance, development, quality assurance, and distribution of SNOMED CT.
Intellectual Property
IP
IPR
Patents, trade marks, service marks, copyright (including rights in computer software), moral rights, database rights, rights in designs, trade secrets, know-how and other intellectual property rights, in each case whether registered or unregistered and including applications for registration, and all rights or forms of protection having equivalent or similar effect in any jurisdiction.
The definition is included in Affiliate License Agreement.
SNOMED International owns the intellectual property rights of SNOMED CT.
SNOMED International is responsible for ongoing maintenance, development, quality assurance, and distribution of SNOMED CT.
Intellectual Property
IP
IPR
This is an abbreviation for intellectual property rights.
Patents, trade marks, service marks, copyright (including rights in computer software), moral rights, database rights, rights in designs, trade secrets, know-how and other intellectual property rights, in each case whether registered or unregistered and including applications for registration, and all rights or forms of protection having equivalent or similar effect in any jurisdiction.
The definition is included in Affiliate License Agreement.
SNOMED International owns the intellectual property rights of SNOMED CT.
SNOMED International is responsible for ongoing maintenance, development, quality assurance, and distribution of SNOMED CT.
Intellectual Property
IP
IPR
The eleventh revision of the system of coding of diseases, signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or diseases, as classified by the World Health Organization (WHO).
ICD-11 is the abbreviation for the International Classification of Diseases, 11th Revision.
A version of ICD-11 was released in June, 2018 to allow Member States to prepare for its use, including translation into appropriate languages.
The planned date for Member States to start using ICD-11 for reporting on 1 January 2022.
The ninth revision of a system of coding of diseases, signs, symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as classified by the World Health Organization (WHO).
ICD-9 is an abbreviation for The International Classification of Diseases, 9th Revision.
ICD-9 was replaced by ICD-10.
A description that is no longer intended for current use.
Release files contain active and inactive descriptions to provide a historical record of the content of the terminology at different points in time.
A description is inactive when the most recent row with the description.id in the full release file has the value description.active = 0 (zero). The most recent row for a description is determined based on the description.effectiveTime value.
Terms derived from inactive descriptions may still be present in past records but should no longer be returned by searches or user interface tools used to enter information into current records.
This is a synonym for SNOMED International Member.
A Member of the International Health Terminology Standards Development Organisation (IHTSDO) in accordance with the IHTSDO Articles of Association.
IHTSDO trades as SNOMED International.
IHTSDO Member
Member
This is the full name for ISO.
A developer and publisher of international standards for products, services, and systems to ensure quality, safety, and efficiency.
ISO * Is the abbreviation for the International Organization for Standardization. * Is a network of the national standards institutes from over 160 countries, one member per country, with a Central Secretariat in Geneva, Switzerland, that coordinates the system.
ISO TC215
This is an abbreviation for International Classification of Diseases.
A system of coding diseases, signs, symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as classified by the World Health Organization (WHO).
A modification of the ninth revision, ICD-9, of a system of coding of diseases, signs, symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as classified by the World Health Organization (WHO).
ICD-9-CM is an abbreviation for the International Classification of Diseases, 9th Revision, Clinical Modification.
ICD-9-CM is maintained jointly by the U.S. National Center for Health Statistics (NCHS) and Centers for Medicare & Medicaid Services (CMS).
An internationally recognized nomenclature of unique names for pharmaceutical substances and active pharmaceutical ingredients maintained by the World Health Organization.
The World Health Organization collaborates closely with INN experts and national nomenclature committees to select a single name of worldwide acceptability for each active substance that is to be marketed as a pharmaceutical.
International Nonproprietary Names (INN) are also known as generic names.
INN
This is an abbreviation for International Nonproprietary Names.
An internationally recognized nomenclature of unique names for pharmaceutical substances and active pharmaceutical ingredients maintained by the World Health Organization.
The World Health Organization collaborates closely with INN experts and national nomenclature committees to select a single name of worldwide acceptability for each active substance that is to be marketed as a pharmaceutical.
International Nonproprietary Names (INN) are also known as generic names.
INN
This is an abbreviation for inactive component.
A SNOMED CT component that is no longer intended for current use.
Release files contain active and inactive components to provide a historical record of the content of the terminology at different points in time.
A component is inactive when the most recent row with the relevant component.id in the full release file has the value component.active = 0 (zero). The most recent row for a component is determined based on the component.effectiveTime value.
Inactive
A relationship that is no longer intended for current use.
Release files contain active and inactive relationships to provide a historical record of the content of the terminology at different points in time.
A relationship is inactive when the most recent row with the relationship.id in the full release file has the value relationship.active = 0 (zero). The most recent row for a relationship is determined based on the relationship.effectiveTime value.
Terms derived from inactive relationships may still be present in past records but should no longer be returned by searches or user interface tools used to enter information into current records.
A subset whose membership is defined by an intensional subset definition.
An intensional subset definition is defined as
A subset definition in which the membership is represented by a set of rules specifying the conditions for inclusion.
The SNOMED CT expression constraint language is the standard way to represent an intensional subset definition of a subset of SNOMED CT concepts.
This is an abbreviation for SNOMED CT International Release.
The complete set of SNOMED CT components and reference set members distributed by SNOMED International and made available to its Members and Affiliates.
The International Release , provided by SNOMED International, includes the SNOMED CT International Edition and all supplementary content and derivatives contained in SNOMED CT International Extensions.
The International Release may be supplemented by extension releases, maintained and distributed by Members and Affiliates, to meet additional national, local, and organizational requirements.
The International Release made available on a particular date may be referred to as an International Release version.
International Release
A row in a Query Specification Reference Set is the standard way to distribute an intensional subset definition of a subset of SNOMED CT concepts.
An example of an intensional subset definition is concepts that are types of respiratory disease characterized by edema. This is represented as follows in expression constraint language: < 19829001 |disorder of lung| : 116676008 |associated morphology| = 79654002 |edema|
Intensionally defined subset
Extensional subset definition
Extensionally defined subset
Practical Guide to Reference Sets
The set of elements that are members of both of two specified sets.
In set theory, the intersection of sets ** A** and B refers to all elements that are in both set A and set B.
In SNOMED CT, the intersection of two _subsets _of concepts consists of all concepts that are members of both subsets.
The following expression constraint language defines the set of concepts that in the intersection subtypes of and members or the . The "AND" instruction indicates a union between the sets defined by constraints on either side of that instruction.
< AND ^
Wikipedia
A modification of the tenth revision, ICD-10, of a system of coding of diseases, signs, symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as classified by the World Health Organization (WHO).
ICD-10-CM is an abbreviation for the International Classification of Diseases, 10th Revision, Clinical Modification.
ICD-10-CM is maintained jointly by the U.S. National Center for Health Statistics (NCHS) and Centers for Medicare & Medicaid Services (CMS).
A developer and publisher of international standards for products, services, and systems to ensure quality, safety, and efficiency.
ISO * Is the abbreviation for the International Organization for Standardization. * Is a network of the national standards institutes from over 160 countries, one member per country, with a Central Secretariat in Geneva, Switzerland, that coordinates the system.
ISO TC215
This is an abbreviation for SNOMED CT International Edition.
The set of SNOMED CT components and reference set members that either belong to a specific module identified by SNOMED International as the focus module for that edition or belong to one of the modules on which that module depends.
The International Edition includes the foundational content of SNOMED CT on which all other SNOMED CT modules must have dependencies.
SNOMED International currently identifies the as the focus module for the International Edition. Only the is currently specified as a dependency.
The International Edition may be supplemented by extensions, maintained and distributed by Members and Affiliates, to meet additional national, local, and organizational requirements.
International Edition
This is a synonym for attribute in group cardinality.
The number of times that a specific attribute is included in the same attribute group.
This term may sometimes be used as an informal abbreviation for attribute in group cardinality constraint which is defined as follows:
A constraint on the number of times that a specific attribute may be included in the same attribute group.
Attribute in group cardinality is not the same as attribute cardinality or attribute group cardinality.
Cardinality in group