SNOMED CT

Last uploaded: January 16, 2025

Details

Acronym	SNOMEDCT
Visibility	Public
Description	The US Edition of SNOMED CT combines the International Release of SNOMED CT and the US Extension of SNOMED CT SNOMED CT provides the core general terminology for the electronic health record (EHR). The concepts have unique meanings and formal logic-based definitions organized into hierarchies. Each International Release includes the core of the terminology (concepts, descriptions, and relationships), together with works to support the implementation and use of SNOMED CT, including subsets, cross maps to existing classifications and coding schemes, and an extensive set of guidelines. The US Extension to SNOMED CT included the concepts, descriptions, and relationships accepted by NLM as a formal extension to the SNOMED CT International Release. NLM no longer releases the standalone US Extension. The US Edition of SNOMED CT includes more than 300,000 unique concepts. There are over 1,000,000 descriptions in SNOMED CT, including synonyms that can be used to refer to a concept. In addition, there are approximately 903,000 links or semantic relationships between the SNOMED CT concepts.
Status	Production
Format	UMLS
Contact	NLM Customer Service, custserv@nlm.nih.gov
Categories	Health
Groups	Cancer Biomedical Informatics Grid, Unified Medical Language System
License Information	This ontology is made available via the UMLS. Users of all UMLS ontologies must abide by the terms of the UMLS license.

Version	Released	Uploaded
SNOMEDCT_US_2024_09_01 (Parsed, Indexed, Metrics, Annotator, Error Diff)	11/04/2024	01/16/2025
2024AA (Archived)	05/06/2024	08/28/2024
2023AB (Archived)	11/06/2023	01/31/2024
2023AA (Archived)	04/01/2023	08/07/2023
2022AB (Archived)	11/07/2022	01/06/2023
2022AA (Archived)	05/02/2022	06/10/2022
2021AB (Archived)	11/01/2021	11/18/2021
2021AA (Archived)	04/03/2021	05/20/2021
2020AB (Archived)	11/02/2020	01/06/2021
2020AA (Archived)	05/04/2018	09/24/2020
2019AB (Archived)	11/04/2019	11/18/2019
2019AA (Archived)	05/06/2019	08/27/2019
2018AB (Archived)	11/05/2018	04/29/2019
2018AA (Archived)	05/07/2018	07/06/2018
2017AB (Archived)	11/06/2017	07/06/2018
2017AA (Archived)	05/08/2017	04/06/2018
2016AB (Archived)	02/06/2017	02/06/2017
2016AA (Archived)	09/06/2016	09/06/2016
2015AB (Archived)	07/20/2016	07/20/2016
2015AA (Archived)	06/09/2015	06/09/2015
2014AB (Archived)	01/29/2015	01/29/2015
2014AA (Archived)	02/21/2014	02/21/2014
2013AA (Archived)	02/18/2014	02/18/2014
2013AA (Archived)	01/14/2014	01/14/2014
2013AA (Archived)	05/08/2013	09/25/2013
2011_01_31 (Archived)	01/31/2011	08/11/2011
2010_07_31 (Archived)	07/31/2010	11/09/2010
2010_01_31 (Archived)	01/31/2010	05/12/2010
2009_07_31 (Archived)	07/31/2009	01/05/2010
2009_01_31 (Archived)	01/31/2009	07/31/2009
more...

CCC Nursing Ontology: This is nursing diagnosis ontology of Clinical Care Classification
Cardiac-centered Frailty Ontology: This ontology is designed to cover the portions of reality relevant to assessing patient frailty. While we believe it to be relevant to frailty in general, during its development we were specifically focused on decisions relating to cardiac care. We gathered terms using existent instruments, physician interviews, and automated chart reviews. The hierarchical structure was taken from SNOMED-CT. We could not simply use SNOMED-CT because it is too exhaustive to be useful. We add entities where necessary to remain true to our data.
Drug-Induce Liver Injury (combined): A SNOMED subset of terms related to histological and clinical descriptions of Drug Induced Liver Injury (DILI). See Wang et al., "A Unifying Ontology to Integrate Histological and Clinical Observations for Drug-Induce Liver Injury" The American Journal of Pathology, 182:4,1180-1187 (2013). This view contains both of the DILIo major branches; SNOMED:Body Structure and SNOMED:Clinical finding Some of the class names have been changed to correspond to the preferred names in SNOMED of 7/31/2011. In DILIo publication -> in this file; Disorder of liver -> Disease of liver; Finding of general form of body -> General form of body - finding; Finding of size of liver -> size of liver - finding; Subacute necrosis of liver -> subacute hepatic necrosis
Maternity_Test_Case2: Testing
MEdical LifeLog Ontology for people with disability: No description provided
SNOMED CT Standard Ontology Based on the Ontology for General Medical Science: The Systematized Nomenclature of Medicine Clinical Term Ontology (SCTO) attempts to create a basic OWL 2 ontology for SNOMED CT terminology. The ontology is built based on the Ontology of General Medical Science (OGMS). This ontology implements the SNOMED CT concept model by adding the appropriate axioms to its top-level concepts. The resulting ontology can prevent redundancies and inconsistencies in this large terminology. Moreover, the terminology maintenance can become more accurate. Finally, SNOMED CT can be used in a healthcare environment to create more complex post-coordinated expressions and constraints in a more accurate manner.
SNOMED Terminos Clinicos: SNOMED Terminos Clinicos (SNOMED CT), Edicion en Espanol, Distribucion Internacional, Octubre de 2008, 2009_04_30
Neoplasm_hamartoma: subset of snomed-ct regarding neoplasm and hamartoma
Neoplasm_breast_cancer: This a subset of Neoplasm_hamartoma view, based on Snomed clinical practice's used terms (Fondazione S.Maugeri anatomic pathology dep.). This subset is not to be meant exhaustive, it has been created in order to built a proper ontology for our project, ONCO-i2b2, through the NCBO Ontology Tools.
Snomed neoplasm, breast cancer: This a subset of snomed-ct regarding neoplasm and hamartoma, based on Snomed clinical practice's used terms (Fondazione S.Maugeri anatomic pathology dep.). This subset is not to be meant exhaustive, it has been created in order to built a proper ontology for our project, ONCO-i2b2, through the NCBO Ontology Tools.
Snomed, Body Structure: The Body Structure subtree in SNOMED-CT. It has been created in order to built a proper ontology for our project, ONCO-i2b2, through the NCBO Ontology Tools.
SNOMED Ethnic Group: Ethnic Group From SNOMED CT
SNOMED Anatomy: The Anatomy class subtree in SNOMED-CT based on SNOMED CT 2009.07.31
SNOMED Clinical Finding: Extract from SNOMED
SNOMED Organism: The Organism subtree in SNOMED-CT based on SNOMED-CT v. 2009.01.31
SNOMED Test Findings: The Test Findings subtree in SNOMED-CT based on SNOMED-CT v. 2009.01.31
SNOMED Morphologically Abnormal Structure: The Morphologically Abnormal Structure subtree of SNOMED CT
Reserved Acronym SNOMEDCT_US: Reserved acronym to prevent URI collusion with SNOMEDCT. see https://github.com/ncbo/bioportal-project/issues/198

Classes	375,783
Individuals	0
Properties	246
Maximum depth	30
Maximum number of children	3,027
Average number of children	4
Classes with a single child	48,683
Classes with more than 25 children	3,114
Classes with no definition	367,146

Id	http://purl.bioontology.org/ontology/SNOMEDCT/267874003 http://purl.bioontology.org/ontology/SNOMEDCT/267874003
Preferred Name	Scleroderma
Definitions	A rare autoimmune connective tissue disorder characterized by abnormal hardening of the skin and sometimes other organs. It is classified into two main forms: localized scleroderma and systemic sclerosis (SSc), the latter comprising three subsets; diffuse cutaneous SSc (dcSSc), limited cutaneous SSc (lcSSc) and limited SSc (lSSc). Localized scleroderma is the cutaneous form of scleroderma characterized by fibrosis of the skin causing cutaneous plaques (morphea) or strips (linear scleroderma). Systemic sclerosis (SSc) is a generalized disorder characterized by fibrosis and vascular obliteration in the skin and organs, particularly, lungs, heart, and digestive tract. The exact cause of scleroderma is unknown. The disease originates from an autoimmune reaction, which leads to localized overproduction of collagen. In some cases, the condition is associated with exposure to chemicals. Other suggested causes include genetic and infectious mechanisms. A rare autoimmune connective tissue disorder characterised by abnormal hardening of the skin and sometimes other organs. It is classified into two main forms: localised scleroderma and systemic sclerosis (SSc), the latter comprising three subsets; diffuse cutaneous SSc (dcSSc), limited cutaneous SSc (lcSSc) and limited SSc (lSSc). Localised scleroderma is the cutaneous form of scleroderma characterised by fibrosis of the skin causing cutaneous plaques (morphea) or strips (linear scleroderma). Systemic sclerosis (SSc) is a generalised disorder characterised by fibrosis and vascular obliteration in the skin and organs, particularly, lungs, heart, and digestive tract. The exact cause of scleroderma is unknown. The disease originates from an autoimmune reaction, which leads to localised overproduction of collagen. In some cases, the condition is associated with exposure to chemicals. Other suggested causes include genetic and infectious mechanisms.
Synonyms	Scleroderma (disorder)
Type	http://www.w3.org/2002/07/owl#Class

definition	A rare autoimmune connective tissue disorder characterized by abnormal hardening of the skin and sometimes other organs. It is classified into two main forms: localized scleroderma and systemic sclerosis (SSc), the latter comprising three subsets; diffuse cutaneous SSc (dcSSc), limited cutaneous SSc (lcSSc) and limited SSc (lSSc). Localized scleroderma is the cutaneous form of scleroderma characterized by fibrosis of the skin causing cutaneous plaques (morphea) or strips (linear scleroderma). Systemic sclerosis (SSc) is a generalized disorder characterized by fibrosis and vascular obliteration in the skin and organs, particularly, lungs, heart, and digestive tract. The exact cause of scleroderma is unknown. The disease originates from an autoimmune reaction, which leads to localized overproduction of collagen. In some cases, the condition is associated with exposure to chemicals. Other suggested causes include genetic and infectious mechanisms. A rare autoimmune connective tissue disorder characterized by abnormal hardening of the skin and sometimes other organs. It is classified into two main forms: localized scleroderma and systemic sclerosis (SSc), the latter comprising three subsets; diffuse cutaneous SSc (dcSSc), limited cutaneous SSc (lcSSc) and limited SSc (lSSc). Localized scleroderma is the cutaneous form of scleroderma characterized by fibrosis of the skin causing cutaneous plaques (morphea) or strips (linear scleroderma). Systemic sclerosis (SSc) is a generalized disorder characterized by fibrosis and vascular obliteration in the skin and organs, particularly, lungs, heart, and digestive tract. The exact cause of scleroderma is unknown. The disease originates from an autoimmune reaction, which leads to localized overproduction of collagen. In some cases, the condition is associated with exposure to chemicals. Other suggested causes include genetic and infectious mechanisms. A rare autoimmune connective tissue disorder characterised by abnormal hardening of the skin and sometimes other organs. It is classified into two main forms: localised scleroderma and systemic sclerosis (SSc), the latter comprising three subsets; diffuse cutaneous SSc (dcSSc), limited cutaneous SSc (lcSSc) and limited SSc (lSSc). Localised scleroderma is the cutaneous form of scleroderma characterised by fibrosis of the skin causing cutaneous plaques (morphea) or strips (linear scleroderma). Systemic sclerosis (SSc) is a generalised disorder characterised by fibrosis and vascular obliteration in the skin and organs, particularly, lungs, heart, and digestive tract. The exact cause of scleroderma is unknown. The disease originates from an autoimmune reaction, which leads to localised overproduction of collagen. In some cases, the condition is associated with exposure to chemicals. Other suggested causes include genetic and infectious mechanisms.
altLabel	Scleroderma (disorder)
prefLabel	Scleroderma
Type ID	900000000000003001 900000000000013009
CASE SIGNIFICANCE ID	900000000000020002 900000000000448009
notation	267874003
Effective time	20230228
Active	1
Has finding site	http://purl.bioontology.org/ontology/SNOMEDCT/21793004
INACTIVATION INDICATOR	900000000000495008 900000000000484002
Has pathological process	http://purl.bioontology.org/ontology/SNOMEDCT/263680009
Associated finding of	http://purl.bioontology.org/ontology/SNOMEDCT/1264397009
subClassOf	http://purl.bioontology.org/ontology/SNOMEDCT/362992004
Semantic type UMLS property	http://purl.bioontology.org/ontology/STY/T047
Cause of	http://purl.bioontology.org/ontology/SNOMEDCT/193252005 http://purl.bioontology.org/ontology/SNOMEDCT/403519001 http://purl.bioontology.org/ontology/SNOMEDCT/1264404009 http://purl.bioontology.org/ontology/SNOMEDCT/63115005
type	http://www.w3.org/2002/07/owl#Class
Subset member	447562003~MAPRULE~TRUE 447562003~MAPADVICE~ALWAYS M34.9 900000000000489007~VALUEID~900000000000484002 6011000124106~MAPGROUP~1 447562003~MAPTARGET~M34.9 900000000000497000~MAPTARGET~XE1DF 900000000000490003~VALUEID~900000000000495008 447562003~MAPGROUP~1 900000000000523009~TARGETCOMPONENT~201049004 447562003~CORRELATIONID~447561005 6011000124106~MAPCATEGORYID~447637006 900000000000509007~ACCEPTABILITYID~900000000000548007 900000000000508004~ACCEPTABILITYID~900000000000548007 6011000124106~MAPADVICE~ALWAYS M34.9 \| DESCENDANTS NOT EXHAUSTIVELY MAPPED 447562003~MAPPRIORITY~1 447562003~MAPCATEGORYID~447637006 900000000000527005~TARGETCOMPONENT~89155008 900000000000527005~TARGETCOMPONENT~201441006 6011000124106~MAPPRIORITY~1 6011000124106~CORRELATIONID~447561005 6011000124106~MAPRULE~TRUE 6011000124106~MAPTARGET~M34.9 900000000000523009~TARGETCOMPONENT~89155008 See more See less
DEFINITION STATUS ID	900000000000074008
tui	T047
CTV3ID	XE1DF
cui	C0011644

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Subject	Author	Type	Class	Created
ICD-10-CM 2018	Certified+Professional+Coder+	Comment	http://purl.bioontology.org/ontology/SNOMEDCT/40068008	2018-06-08
Surgical specialty should be surgury?	jimmccusker	Comment	http://purl.bioontology.org/ontology/SNOMEDCT/394732004	2012-09-26
SNOMEDCT	kotharu	Comment	http://purl.bioontology.org/ontology/SNOMEDCT/123037004	2012-04-17

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Add NCBO Web Widgets to your site for SNOMEDCT

Widget type	Widget demonstration
Jump To Type a class name from SNOMEDCT and jump to it in BioPortal Get code	Step 2: Follow the Instructions Download the quick_jump.js file and put it on your server Copy the code below and paste it to your HTML page Note: If you would like to use Quick Jump across multiple ontologies: You can enter a comma-separated list of ontology ids: var BP_ontology_id = "NCIt,SNOMEDCT"; You can set the variable to 'all' to search all ontologies in BioPortal: var BP_ontology_id = "all"; To include definitions in the Jump To drop-down, add the following variable in Javascript: var BP_include_definitions = true; In the code that you just pasted, make sure to change the path to the quick_jump.js file to point to the location where you put the file (relative to your HTML file) For example, if you put the quick_jump.js file in the same directory as your HTML file, this is the code you would use: <div id="bp_quick_jump"></div> <script type="text/javascript"> var BP_ontology_id = "SNOMEDCT";</script> <script src="quick_jump.js" type="text/javascript" charset="utf-8"></script> For more help visit NCBO Widget Wiki
Form Autocomplete Fill your form fields with classes from SNOMEDCT Get code	Example 1 (start typing the class name to get its full URI) Example 2 (get the ID for a class) Example 3 (get the preferred name for a class) Step 2: Follow the Instructions Download the form_complete.js file and put it on your server. In the header for the page where you want the form field, include the form_complete.js file. On your form, for the fields where you want to use the class-selection widget, specify the field's class in the following format: `bp_form_complete-{ontology_id_list}-{value}` For example, `bp_form_complete-NCIT-uri` will use NCI Thesaurus (ontology id is NCIT) and will put the class URI in the field after the user selects the class from the pull-down list. Note: In addition to single ontology ids, you can use a list: `bp_form_complete-NCIT,NCBITAXON-uri` OR use 'all' to search across all BioPortal ontologies: `bp_form_complete-all-uri` The autocomplete widget accesses ontology content from the latest version of the ontology. You can use the following parameters to select which value will be placed into the user-visible input field: `uri` put the complete URI of the class (e.g., http://purl.bioontology.org/ontology/SNOMEDCT/1286952001 ) `shortid` put the short id of the class, as used in BioPortal (e.g., "Common_Neoplasm"); `name` put the preferred name of the class (e.g., "Common Neoplasm"); In addition to the input element you defined, there are four hidden form elements that are created and then set when a user selects a class from the list. For example, if you create a field with this code: <input type="text" name="a" class="bp_form_complete-all-uri" size="100"/> The 'name' attribute is used to create the four following fields (note how the 'a' from the name attribute is appended to the id attribute): <input type="hidden" id="a_bioportal_preferred_name"> <input type="hidden" id="a_bioportal_concept_id"> <input type="hidden" id="a_bioportal_ontology_id"> <input type="hidden" id="a_bioportal_full_id"> Additional parameters are documented on the NCBO Widget Wiki For more help visit NCBO Widget Wiki
Visualization Display a visualization for a given class in SNOMEDCT Get code	Step 2: Follow the Instructions Copy the code below and paste it to your HTML page <iframe frameborder="0" src="/widgets/visualization?ontology=SNOMEDCT&class=http%3A%2F%2Fpurl.bioontology.org%2Fontology%2FSNOMEDCT%2F1286952001&apikey=YOUR_API_KEY"></iframe> For more help visit NCBO Widget Wiki
Tree Widget Display a class tree with a search field for SNOMEDCT Get code	Step 2: Follow the Instructions Copy the code below and paste it to your HTML page <link rel="stylesheet" type="text/css" href="/widgets/jquery.ncbo.tree.css"> <script src="/widgets/jquery.ncbo.tree-2.0.2.js"></script> <div id="widget_tree"></div> var widget_tree = $("#widget_tree").NCBOTree({ apikey: "YOUR_API_KEY", ontology: "SNOMEDCT" }); You can also view a detailed demonstration For more help visit NCBO Widget Wiki

SNOMED CT

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Add NCBO Web Widgets to your site for SNOMEDCT

Jump To

Step 2: Follow the Instructions

Form Autocomplete

Step 2: Follow the Instructions

Visualization

Step 2: Follow the Instructions

Tree Widget

Step 2: Follow the Instructions