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

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80 | SNOMED CT Release Format 1 (RF1) Guide July 2012 attribute= attributeName "= " attributeValue An attribute name -value pair expressing a single refinement of the containing expression. attributeName= ws attributeNameId ws [ " |" ws term ws "| " ws ] The name (or relationship type) of an attribute to which a value is applied to refine the meaning of a containing expression. The attribute name is represented by an appropriate conceptId optionally followed by a term enclosed by a pair of "|" characters. Whitespace before or after the conceptId is ignored as is any whitespace between the initial "|" characters and the first non-whitespace character in the term or between the last non-whitespace character and before second "|" character. attributeValue= concept / ( ws "(" expression ") " ws ) A concept or expression representing the value of a named attribute which refines the meaning of a containing expression. If an expression is used this must be enclosed in brackets. attributeNameId = sctId The attribute name id must be the conceptId for a concept that is a subtype descendant of the SNOMED CT concept"attribute". sctId = digitNonZero 5*17( digit ) A n sctId is used for an attribute id or a concept id. The initial digit may not be zero. The smallest number of digits is six, and the maximum is 18. ws= *( SP | HTAB | CR | LF ) Whitespace characters (space, tab, linefeed and carriage return) are ignored everywhere in the expression except: 1. Whitespace within a conceptId or attributeNameId is an error. Note: Whitespace before or after the last digit of a valid Identifier is ignored. 2. Whitespace within a term is treated as a significant character of the term. Note: Whitespace before the first or after the last non-whitespace character of a term is ignored nonwsnonpipe= %x21-7B / %x7D-7E / UTF8-2 / UTF8-3 / UTF8-4 Non whitespace includes printable ASCII characters (these are also valid UTF8 characters encoded as one octet) and also includes all UTF8 characters encoded as 2- 3- or 4-octet sequences. It excludes space (which is %x20) and the pipe character "|" (which is %x7C), and excludes CR, LF, HTAB and other ASCII control codes. SeeRFC 3629 (UTF-8, a transformation format of ISO 10646 authored by the Network Working Group). © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
digitNonZero= %x31-39 The first character of a concept Identifier is constrained to a digit other than zero. digit= %x30-39 Any digit 0 through 9 2.3.4.1.4. Examples of Grammar The following examples build on each other and in complexity. They are primarily aimed at demonstrating the syntax of the expression grammar, although its meaning is also discussed in a number of places: An expression may consist of a single concept, followed by a description associated with that concept. Which particular description to use is not mandated, but as a general rule, it may be preferable to use the preferred term in any particular dialect to achieve some level of consistency. However, such guidance is not strictly in the scope of this guide, and may be given elsewhere. 297186008 | motorcycle accident | The syntax does not require a description to be associated with a particular concept, so the following is also a valid expression: 297186008 Two or more concepts may be combined to form a new concept by joining them with the "+" symbol. The resultant expression is the child of each of the concepts in the expression. The resultant expression below IS AN accident caused by a blizzard and also | is a | motorcycle accident. 217724009 | accident caused by blizzard | +297186008 | motorcycle accident | Although not stipulated by the syntax, note that two concepts joined in this way must be from the same top level hierarchy. The syntax does not mandate which concepts in the expression should have associated descriptions and which should not so it is valid, but not advisable, to mix and match. For example, the following syntax is valid: 217724009 +297186008 | motorcycle accident | The syntax allows spaces, tabs and carriage returns in most places. For example, the following examples have identical meaning to the one above: 217724009 + 297186008 | motorcycle accident | 217724009 + 297186008 | motorcycle accident | Using the "+" symbol is symmetrical and equivalent to starting with one of the concepts and adding an | is a | refinement, with a value set to the other concept. For example, the following two expressions are equivalent to each other and to the preceding expression: 217724009 | accident caused by blizzard |: 116680003 | is a | =297186008 | motorcycle accident | 297186008 | motorcycle accident |: 116680003 | is a | =217724009 | accident caused by blizzard | Structure and Content Guide | 81 © 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
Page 29 and 30: 1. As originally stated: : • | Ha
Page 31 and 32: 2.2.1.3.2.3.1. Supertype aspects of
Page 33 and 34: Figure 11: Example hierarchy with l
Page 35 and 36: Concept E F G H J K L M Note: Compr
Page 37 and 38: Concept M List of proximal primitiv
Page 39 and 40: Table 11: Non-redundant attribute v
Page 41 and 42: G. | Severe upper limb laceration |
Page 43 and 44: As a result of this limitation some
Page 45 and 46: 2.2.1.4.3. Historical relationships
Page 47 and 48: 2.2.2.1.1.2. Refinement attribute n
Page 49 and 50: 2.2.2.1.4.3. Use of "unapproved att
Page 51 and 52: Interim recommendations 1. Wherever
Page 53 and 54: 2.2.2.3.1. Close-to-user expression
Page 55 and 56: It is important to note that combin
Page 57 and 58: 2.2.2.3.6.1. Example of equivalent
Page 59 and 60: Figure 25: Alternative expressions
Page 61 and 62: Figure 27: Possible expressions of
Page 63 and 64: Figure 28: SCTID Short Format - App
Page 65 and 66: PartitionId 05 Description A Cross
Page 67 and 68: SctId 999999990989121104 2.3.2.9. T
Page 69 and 70: 2.3.3.2. Specification for Namespac
Page 71 and 72: 2.3.3.3.1.4. Procedures 2.3.3.3.1.4
Page 73 and 74: 1. Every Concept in an Extension:
Page 75 and 76: Table 17: Processing Transfers betw
Page 77 and 78: In May 2008, the HL7 Version 3 Stan
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Page 83 and 84: excision of left fallopian tube. No
Page 85 and 86: This existential restriction is lab
Page 87 and 88: • In order to generate the OWL ve
Page 89 and 90: • Though there are many candidate
Page 91 and 92: 2.3.7.2.2.1. Single byte encoding C
Page 93 and 94: 9 0 9 Table 29: The full array for
Page 95 and 96: else {document.getElementById("out"
Page 97 and 98: http://www.augustana.ab.ca/~mohrj/a
Page 99 and 100: version. It seems unwise to prevent
Page 101 and 102: Table DescDualKey Table ConcDualKey
Page 103 and 104: The IHTSDO recognizes that, while i
Page 105 and 106: 3.2.2. Release Format 1 - Structure
Page 107 and 108: 3.2.3.2. Core Tables Data - Structu
Page 109 and 110: Data Fields InitialCapitalStatus De
Page 111 and 112: 3.2.4.1. Subset Mechanism - Structu
Page 113 and 114: Data Fields ContextId 3.2.4.2.2. Su
Page 115 and 116: Subset SNOMED CT Top Level Navigati
Page 117 and 118: • as a combination of codes; •
Page 119 and 120: Table 41: Cross Mapping Tables Cros
Page 121 and 122: Table 44: Cross Map Targets Table K
Page 123 and 124: The History Mechanism is also used
Page 125 and 126: In addition, the ReferencedId field
Page 127 and 128: Table Descriptions Descriptions Rel
Page 129 and 130: 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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CONCEPTID 62834003 5668004 34810001
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CONCEPTID 53224005 4150005 74636004
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CONCEPTID 47538007 19359003 3011000
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3.2.13. Enumerated values Value 0 1
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Table and Field Subsets SubsetType
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3.3. Release Format 2 Update Guide
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• The Release Format should minim
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3.3.3.4. Backward compatibility The
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3.3.4.5. Field Ordering Records in
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externalised structures such as Ref
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ContextId If either the RealmId fie
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eplaced by more descriptive ones if
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descriptions associated with concep
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Figure 45: Illustration of module d
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was inactivated. Each Reference ind
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Finally, add members to the Referen
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3.4.1. File Naming Convention - Ove
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• Test/Beta Release File("xsct",
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In certain cases, an RF1 data file
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VersionDate refers to the official,
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Example: Excluding the Fully Specif
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4.2.1.3. Pre-processing of distribu
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• Reject, highlight or apply othe
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Table 236: Essential concept Identi
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The purpose of this section of the
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Table 240: Example results for a Se
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• For each dual key, add rows to
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• Description104951019 is elimina
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4.4.1.4.1. Avoiding multiple hits o
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Table 248: Relationship Example Con
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• Since the depth of the hierarch
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4.4.2.5. Using navigation Subsets t
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Table 253: Concepts used in the Exa
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SubsetId Mem
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• 302402006 | radius and/or ulna
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Now we have tree nodes and their ch
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Subsets may be used to derive table
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• One Subset can be used as the b
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• A Context Concept Subset only r
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• A Navigation Subset specifies a
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• A RealmID identifies the specia
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4.5. Testing and traversing subtype
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This approach removes the need for
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4.5.5.2.4. Using the transitive clo
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Figure 55: Terminology server provi
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A field in the Component History Ta
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Cross maps table A data table consi
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• References Table Inactive compo
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A field in the Cross Maps Table tha
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A Subset that specifies sets of Nav
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A field in the Concepts Table that
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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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