SNOMED CT® Release Format 1 (RF1) Guide - ihtsdo

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312 | SNOMED CT Release Format 1 (RF1) Guide July 2012 4.4.1.2.1. Generating the DualKey index Although Dualkey indexes are available as part of the Developer Toolkit , it is important to know how this table is generated. SNOMED CT users that generate Extensions should follow the method outlined below to generate new entries in the Dualkey index, based on the descriptions in the Extension. For each description, parse the text of the term: • To avoid inappropriate case mismatches, convert all characters to the same case; • Extract words by breaking at spaces, punctuation marks, and brackets; • For each word of three characters or more that is not in the list of excluded words, extract the first 3 characters, and arrange the word fragments in alphabetical order; • Generate the dual keys for this description by concatenating each word fragment with those that come after it in the list; • For each dual key, add a row to the word pair tables. 4.4.1.2.1.1. Example: Generation of keywords for a sample Description Table 242: Sample Description DescriptionId 33592011 ConceptId 19954002 Term | total replacement of hip with use of methyl methacrylate | • To avoid inappropriate case mismatches, convert all characters to the same case. “TOTAL REPLACEMENT OF HIP WITH USE OF METHYLE METHACRYLATE” • Extract words by breaking at spaces, punctuation marks, and brackets. 1. TOTAL; 2. REPLACEMENT; 3. OF; 4. HIP; 5. WITH; 6. USE; 7. OF; 8. METHYLE; 9. METHACRYLATE. • For each word of three characters or more, that is not in the list of excluded words, extract the first 3 characters, and arrange the word fragments in alphabetical order. 1. HIP; 2. MET; 3. REP; 4. TOT; 5. USE. Note: "OF" is less than 3 characters and is an excluded word, "WITH" is an excluded word and "MET" is duplicated, so we only include it once. • Generate the dual keys for this description by concatenating each word fragment with those that come after it in the list; © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
• For each dual key, add rows to the word pair tables. Table 243: DescDualKey Dual key HIPMET HIPREP HIPTOT HIPUSE METREP METTOT METUSE REPTOT REPUSE TOTUSE Table 244: ConcDualKey Dual key HIPMET HIPREP HIPTOT HIPUSE METREP METTOT METUSE REPTOT REPUSE DescriptionId 33592011 33592011 33592011 33592011 33592011 33592011 33592011 33592011 33592011 33592011 ConceptId 19954002 19954002 19954002 19954002 19954002 19954002 19954002 19954002 19954002 Terminology services Guide (RF1) | 313 © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
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SNOMED CT ® Release Format 1 (RF1)
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Contents | 3 Release Format 1 - Det
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Chapter 1 Preface The purpose of th
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Table 3: Document Types Type Name a
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IHTSDO Glossary (DRAFT) • On line
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Chapter 2 Structure and Content Gui
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Figure 1: Multiple levels of granul
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Table 5: Example: Defining arthriti
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The full definitions of the concept
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Other components (i.e. Relationship
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2.1.2.2.1.3. Linking related Concep
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• Local content requirements that
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Consistent representation is a prer
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Figure 8: Abstract logical model of
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1. As originally stated: : • | Ha
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2.2.1.3.2.3.1. Supertype aspects of
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Figure 11: Example hierarchy with l
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Concept E F G H J K L M Note: Compr
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Concept M List of proximal primitiv
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Table 11: Non-redundant attribute v
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G. | Severe upper limb laceration |
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As a result of this limitation some
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2.2.1.4.3. Historical relationships
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2.2.2.1.1.2. Refinement attribute n
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2.2.2.1.4.3. Use of "unapproved att
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Interim recommendations 1. Wherever
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2.2.2.3.1. Close-to-user expression
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It is important to note that combin
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2.2.2.3.6.1. Example of equivalent
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Figure 25: Alternative expressions
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Figure 27: Possible expressions of
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Figure 28: SCTID Short Format - App
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PartitionId 05 Description A Cross
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SctId 999999990989121104 2.3.2.9. T
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2.3.3.2. Specification for Namespac
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2.3.3.3.1.4. Procedures 2.3.3.3.1.4
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1. Every Concept in an Extension:
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Table 17: Processing Transfers betw
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In May 2008, the HL7 Version 3 Stan
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An expression supports combinations
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digitNonZero= %x31-39 The first cha
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excision of left fallopian tube. No
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This existential restriction is lab
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• In order to generate the OWL ve
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• Though there are many candidate
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2.3.7.2.2.1. Single byte encoding C
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9 0 9 Table 29: The full array for
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else {document.getElementById("out"
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http://www.augustana.ab.ca/~mohrj/a
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version. It seems unwise to prevent
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Table DescDualKey Table ConcDualKey
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The IHTSDO recognizes that, while i
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3.2.2. Release Format 1 - Structure
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3.2.3.2. Core Tables Data - Structu
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Data Fields InitialCapitalStatus De
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3.2.4.1. Subset Mechanism - Structu
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Data Fields ContextId 3.2.4.2.2. Su
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Subset SNOMED CT Top Level Navigati
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• as a combination of codes; •
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Table 41: Cross Mapping Tables Cros
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Table 44: Cross Map Targets Table K
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The History Mechanism is also used
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In addition, the ReferencedId field
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Table Descriptions Descriptions Rel
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Table 49: Relationships depending o
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Table 51: Changes to Relationships
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Table 52: Changes to Relationships
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• The only Relationships that it
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ComponentId ConceptId ReleaseVersio
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A readme.txt file is distributed wi
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Value 6 10 11 Limited Moved elsewhe
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As new concepts are added to SNOMED
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Table 73: DescriptionStatus Values
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3.2.9.2.2.4. InitialCapitalStatus T
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3.2.9.3. relationships tables Each
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3.2.9.3.2.3. ConceptId2 Table 84: -
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An integer value that expresses an
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3.2.9.4.1.2.4. SubsetType Table 95:
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A string that identifies a Context
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3.2.9.4.2.1.2. Data Fields Table 10
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• MemberStatus 3.2.9.4.2.3.1.1. S
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3.2.9.4.2.4.1.3. MemberStatus Table
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3.2.9.4.2.5.2. Data Fields Table 11
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3.2.9.4.2.7.1.1. SubsetId Table 124
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3.2.9.4.2.8.1.3. MemberStatus Table
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3.2.9.4.3. Subset Definition File P
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3.2.9.5.1.2.3. MapSetSchemeId Table
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This discussion of rules is include
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3.2.9.5.1.3.2.3. MapRule Table 151:
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3.2.9.5.1.4.2.3. TargetRule Table 1
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RELAT_NMS = column in the LOINC tab
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The value of the SNOMED CT / LOINC
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The SNOMED CT Relationships Table e
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LOINC Analyte Name(s) DESMETHYLAMIO
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LOINC Analyte Name(s) COMPLEMENT IC
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The information provided includes d
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3.2.9.6.4.1.2. ReleaseVersion Table
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Value 6 7 8 9 10 11 Note: Name Limi
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3.2.9.6.5.1.1. ComponentId Table 17
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Release Format 1 is represents a sn
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RF1 Descriptions Table Descriptions
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Table 177: Concepts Table Use of re
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Use of recommended additional indic
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Use of recommended additional indic
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Table 184: Cross Map Sets Table Use
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Keys Partition Size Type Field Name
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Table 192: Word Equivalents Table U
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3.2.10. The Stated relationships ta
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Figure 41: Overview of Cross Map Sc
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Table 197: Cross Maps Sets Table Ma
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Table 201: Cross Maps Sets Table Ma
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Table 205: Cross Map Sets Table Map
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If this approach is followed, there
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This approach allows a more consist
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1. A record may contain many record
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• Temporally related to the selec
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CONCEPTID 95333004 7119001 95336007
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CONCEPTID 109778006 109788007 15270
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CONCEPTID 417163006 417746004 12820
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CONCEPTID 102706005 1677001 9145400
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CONCEPTID 399023006 399154007 39905
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CONCEPTID 399306005 399239005 39937
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CONCEPTID 125086000 78678003 388393
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CONCEPTID 339008 47002008 128419007
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CONCEPTID 16817006 15367004 1580700
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CONCEPTID 14509009 39250009 8627300
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CONCEPTID 122868007 122465003 78817
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CONCEPTID 19207007 74923002 6639100
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CONCEPTID 54305003 84100007 3216600
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CONCEPTID 255496004 255499006 24646
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Page 267 and 268: 3.2.13. Enumerated values Value 0 1
Page 269 and 270: Table and Field Subsets SubsetType
Page 271 and 272: 3.3. Release Format 2 Update Guide
Page 273 and 274: • The Release Format should minim
Page 275 and 276: 3.3.3.4. Backward compatibility The
Page 277 and 278: 3.3.4.5. Field Ordering Records in
Page 279 and 280: externalised structures such as Ref
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Page 283 and 284: eplaced by more descriptive ones if
Page 285 and 286: descriptions associated with concep
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Page 289 and 290: was inactivated. Each Reference ind
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Page 343 and 344: 4.5. Testing and traversing subtype
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Page 349 and 350: Figure 55: Terminology server provi
Page 351 and 352: A field in the Component History Ta
Page 353 and 354: Cross maps table A data table consi
Page 355 and 356: • References Table Inactive compo
Page 357 and 358: A field in the Cross Maps Table tha
Page 359 and 360: A Subset that specifies sets of Nav
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TargetId A SNOMED CT Identifier tha
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WordText A field in the Word Equiva
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