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

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360 | SNOMED CT Release Format 1 (RF1) Guide July 2012 Refinability A field in the Relationships Table, which indicates whether it is permissible to refine the value of a Defining characteristic or qualifying characteristic to represent a more refined Concept. Note: Field name in SNOMED CT Release Format 1 Relationship group Relationships, for a concept that are logically associated with each other. The RelationshipGroup field in the Relationships Table is used to group these rows together for a concept. For example, where a particular type of prosthesis is inserted a joint, the Defining characteristics describing the prosthesis type would be in one group whereas those describing the location or laterality of the joint would be in another group. Note: Field name in SNOMED CT (RF1 and RF2) Relationship type The nature of a Relationship between two Concepts. Relationship Types are represented in SNOMED CT by Concept codes. In the Relationships Table, the RelationshipType field contains the ConceptId for the concept in SNOMED CT that forms the relationship between two other concepts (ConceptId1 and ConceptId2). For defining and qualifying relationships, the Relationship Type is an Attribute code. RelationshipType should not be confused with CharacteristicType. Note: Field name in SNOMED CT Release Format 1 RelationshipId A SNOMED CT Identifier that uniquely identifies a Relationship. RelationshipId is the key of the Relationships Table. Each row in the Relationships Table represents a relationship triplet (ConceptId1 RelationshipType - ConceptId2). Note: Field name in SNOMED CT Release Format 1 Relationships table A data table consisting of rows, each of which represents a Relationship. Note: Component Table name in SNOMED CT Release Format 1 Retired concept A Concept that has been made inactive with no reason specified. Concepts that are no longer current should be called "non-current" or "inactive" rather than " retired." (See Inactive Concept.) Note: Component status value SCTID A unique integer Identifier applied to each SNOMED CT component (Concept, Description, Relationship, Subset, etc.). The SCTID can include an item Identifier, namespace identifier, a check-digit and a partition identifier. It does not always include a namespace identifier. Note: Datatype name. SNOMEDID © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
A field in the Concepts Table that contains the SNOMED CT RT Identifier for the Concept. Note: Field name in SNOMED CT Release Format 1 Status The Status of a component indicates whether it is in current use and, if not, provides a general indication of the reason that it is not recommended for current use.The Status of a Concept is referred to as ConceptStatus and the Status of a Description is referred to as DescriptionStatus. Note: Component status value String A datatype representing a sequence of characters. Note: In SNOMED CT release file specifications strings are represented using Unicode UTF-8 encoding. Subset definition A series of clauses that specifies the nature of a Subset and determines its membership. A Subset Definition is an alternative form of representation applicable to many Subsets. See also Subset Definition File. Subset definition clause A statement that refers directly or indirectly to one or more Concepts, Descriptions or Relationships and indicates whether the referenced item(s) should be removed from or added to a specified Subset. In the case of additions to a Subset the clause also specifies the MemberStatus to be assigned to those additions. Subset definition file A file containing a series of clauses that define the nature and membership of a Subset.The Subset Definition File is an XML document that contains the Subset Definition for a single Subset. A Subset Definition File can be used to generate the appropriate Subsets Table row and Subset Members Table rows to represent a Subset. Therefore applications need not support this alternative form of Subset representation. Note: Component Table name in SNOMED CT Release Format 1 Subset member A Concept, Description, Relationship or another Subset that is part of a specified Subset. Subset members table A data table consisting of rows each of which refers to a single Subset Member. Note: Component Table name in SNOMED CT Release Format 1 Subset version A version number assigned to a particular release of a Subset. Note: Field name in SNOMED CT Release Format 1 SubsetId A SNOMED CT Identifier that uniquely identifies a Subset. Note: Field name in SNOMED CT Release Format 1 SNOMED CT Release Format 1 file and field names | 361 © 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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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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Page 351 and 352: A field in the Component History Ta
Page 353 and 354: Cross maps table A data table consi
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Page 357 and 358: A field in the Cross Maps Table tha
Page 359: A Subset that specifies sets of Nav
Page 363 and 364: TargetId A SNOMED CT Identifier tha
Page 365: WordText A field in the Word Equiva
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