US Edition of SNOMED CT(R): March 2016 Release Introduction The US Edition of SNOMED CT is a combination of the full January 2016 SNOMED CT International Release and the US Extension to SNOMED CT. The US Edition eliminates the need for implementers to manually combine the US Extension and the International Release. March 2016 US Extension Statistics * New concepts added: 722 * (disorder) 517 * (finding) 142 * (qualifier) 27 * (procedure) 15 * (situation) 8 * (physical) 3 * (occupation) 3 * (environment) 3 * (event) 2 * (regime/therapy) 1 * (record) 1 * Concepts inactivated 5 * Concepts moved to core (this release) 0 * Concepts moved to core (all time) 53 * Concepts promoted to core (this release) 0 * Concepts promoted to core (all time) 237 (and not defaulted back to extension) * Concepts defaulted to core (this release) 0 * Concepts defaulted to core (all time) 4 (and not promoted again back to extension) * Concepts moved from core (this release) 0 * Concepts moved from core (all time) 4 * Active concepts in US Extension 4792 * Retired concepts in US Extension 367 (including moved concepts) * Active descriptions in US Extension 12496 * Synonyms of International Edition concepts 410 * Active (inferred) rels in US Extension 18665 * Between of International Edition concepts 106 * Active (inferred ISA) rels in US Edition 844174 * Retired (inferred ISA) rels in US Edition 361974 The US Edition of SNOMED CT is provided in UTF-8 encoded tab-delimited flat files which can be imported into any database or other software application. The US Edition of SNOMED CT is not software. NLM performs quality assurance checks to ensure that US Edition data fully conforms to both RF1 and RF2 specifications. File description Edition files are designed as tab-delimited text files to be used as relational tables with each line in the file representing a row in the table. The first row of each table contains column headings. All other rows contain data. The March 2016 US Edition is distributed in both RF1 and RF2 formats in two separate zip file: SnomedCT_RF1Release_US1000124_20160301.zip (163 MB) and SnomedCT_RF2Release_US1000124_20160301.zip (439 MB). Edition Files contain US Extension specific content and the full International release content providing a comprehensive compilation of the content from both sources. US Edition releases in both RF1 and RF2 contain files that correspond to SNOMED CT files and are described in the "SNOMED CT(R) Technical Implementation Guide, International Release." The Guide is part of the SNOMED CT download package available from the UMLS Terminology Services (UTS) at https://uts.nlm.nih.gov and is also searchable on the IHTSDO SNOMED CT Documentation page. More information on the US Edition of SNOMED CT is available at http://www.nlm.nih.gov/research/umls/Snomed/us_edition.html File Structure bytes Readme_en_20160301.txt 11381 bytes Delta Refset Content der2_cRefset_AssociationReferenceDelta_US1000124_20160301.txt 137412 bytes der2_cRefset_AttributeValueDelta_US1000124_20160301.txt 449318 bytes der2_Refset_SimpleDelta_US1000124_20160301.txt 65 bytes Language der2_cRefset_LanguageDelta-en_US1000124_20160301.txt 4697268 bytes Map der2_iisssccRefset_ExtendedMapDelta_US1000124_20160301.txt 1246366 bytes der2_iissscRefset_ComplexMapDelta_US1000124_20160301.txt 195595 bytes der2_sRefset_SimpleMapDelta_US1000124_20160301.txt 661109 bytes Metadata der2_cciRefset_RefsetDescriptorDelta_US1000124_20160301.txt 115 bytes der2_ciRefset_DescriptionTypeDelta_US1000124_20160301.txt 101 bytes der2_ssRefset_ModuleDependencyDelta_US1000124_20160301.txt 1270 bytes Terminology sct2_Concept_Delta_US1000124_20160301.txt 385708 bytes sct2_Description_Delta-en_US1000124_20160301.txt 2964986 bytes sct2_Identifier_Delta_US1000124_20160301.txt 92 bytes sct2_Relationship_Delta_US1000124_20160301.txt 7252216 bytes sct2_StatedRelationship_Delta_US1000124_20160301.txt 3073580 bytes sct2_TextDefinition_Delta-en_US1000124_20160301.txt 21426 bytes Documentation doc_Icd10cmMapReleaseNotes_Current-en-US_US1000124_20150901.pdf 284236 bytes doc_Icd10cmMapTechnicalGuideExemplars_Current-en-US_US1000124_20150901.xlsx 147087 bytes doc_Icd10cmMapTechnicalSpecifications_Current-en-US_US1000124_20150901.pdf 663223 bytes doc_Icd10MapTechnicalGuideExemplars_Current-en-US_US1000124_20160301.xlsx 113959 bytes doc_SnomedCTReleaseNotes_Current_en-US_US1000124_20160301.pdf 80501 bytes tls_Icd10cmHumanReadableMap_US1000124_20150901.tsv 42540830 bytes Full Refset Content der2_cRefset_AssociationReferenceFull_US1000124_20160301.txt 15286042 bytes der2_cRefset_AttributeValueFull_US1000124_20160301.txt 68541676 bytes der2_Refset_SimpleFull_US1000124_20160301.txt 12721 bytes Language der2_cRefset_LanguageFull-en_US1000124_20160301.txt 330688090 bytes Map der2_iisssccRefset_ExtendedMapFull_US1000124_20160301.txt 67672579 bytes der2_iissscRefset_ComplexMapFull_US1000124_20160301.txt 28946744 bytes der2_sRefset_SimpleMapFull_US1000124_20160301.txt 91042695 bytes Metadata der2_cciRefset_RefsetDescriptorFull_US1000124_20160301.txt 11714 bytes der2_ciRefset_DescriptionTypeFull_US1000124_20160301.txt 619 bytes der2_ssRefset_ModuleDependencyFull_US1000124_20160301.txt 11054 bytes Terminology sct2_Concept_Full_US1000124_20160301.txt 32225897 bytes sct2_Description_Full-en_US1000124_20160301.txt 205457765 bytes sct2_Identifier_Full_US1000124_20160301.txt 92 bytes sct2_Relationship_Full_US1000124_20160301.txt 532018507 bytes sct2_StatedRelationship_Full_US1000124_20160301.txt 99796801 bytes sct2_TextDefinition_Full-en_US1000124_20160301.txt 391266 bytes Resources StatedRelationshipsToOwlKRSS tls2_StatedRelationshipsToOwlKRSS_US1000124_20160301.pl 39257 bytes TransitiveClosure res2_TransitiveClosure_US1000124_20160301.txt 108348426 bytes tls2_TransitiveClosure_US1000124_20160301.pl 4331 bytes Snapshot Refset Content der2_cRefset_AssociationReferenceSnapshot_US1000124_20160301.txt 14131198 bytes der2_cRefset_AttributeValueSnapshot_US1000124_20160301.txt 49599995 bytes der2_Refset_SimpleSnapshot_US1000124_20160301.txt 12721 bytes Language der2_cRefset_LanguageSnapshot-en_US1000124_20160301.txt 289239528 bytes Map der2_iisssccRefset_ExtendedMapSnapshot_US1000124_20160301.txt 55003889 bytes der2_iissscRefset_ComplexMapSnapshot_US1000124_20160301.txt 19754903 bytes der2_sRefset_SimpleMapSnapshot_US1000124_20160301.txt 90801410 bytes Metadata der2_cciRefset_RefsetDescriptorSnapshot_US1000124_20160301.txt 10539 bytes der2_ciRefset_DescriptionTypeSnapshot_US1000124_20160301.txt 489 bytes der2_ssRefset_ModuleDependencySnapshot_US1000124_20160301.txt 3620 bytes Terminology sct2_Concept_Snapshot_US1000124_20160301.txt 25698123 bytes sct2_Description_Snapshot-en_US1000124_20160301.txt 167131972 bytes sct2_Identifier_Snapshot_US1000124_20160301.txt 92 bytes sct2_Relationship_Snapshot_US1000124_20160301.txt 282829813 bytes sct2_StatedRelationship_Snapshot_US1000124_20160301.txt 86584606 bytes sct2_TextDefinition_Snapshot-en_US1000124_20160301.txt 370508 bytes License requirement The US Edition to SNOMED CT is developed and maintained by the U.S. National Library of Medicine and is available to authorized UMLS Metathesaurus Licensees from the UTS Downloads site at https://uts.nlm.nih.gov. This material includes SNOMED Clinical Terms(R) (SNOMED CT(R)) which is used by permission of the International Health Terminology Standards Development Organisation (IHTSDO). All rights reserved. SNOMED CT was originally created by the College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of the IHSTDO. You must have a UMLS license and UTS account to access SNOMED CT International and US Edition files. License information is available from the UTS at https://uts.nlm.nih.gov. Feedback and suggestions We welcome questions, comments or suggestions to improve the quality, accuracy and usability of the Edition. Please send feedback to NLM Customer service to custserv@nlm.nih.gov, or submit your request via http://apps.nlm.nih.gov/mainweb/siebel/nlm/index.cfm. Include "SNOMED CT US Edition" in the subject line. U.S. National Library of Medicine March 1, 2016