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

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322 | SNOMED CT Release Format 1 (RF1) Guide July 2012 Figure 48: Relationship for disease appendicitis Figure 49: Relationships for procedure craniotomy These Relationships are very useful in the context of data retrieval and analysis. The Relationships can also be used to aid in the search for specific SNOMED CT Concepts in cases where the term alone may not sufficiently distinguish between choices. For example, a search for all inflammatory diseases of the lung could be carried out as follows: • Use the hierarchy to compile a list of all Concepts that are lung structures; • Search for any Concept that has a row in the Relationships table with a Relationship Type of "Disorder site," and with ConceptId2 included in the list of lung structures; • Now exclude any procedures from the list that do have the | Associated morphology | "Inflammation" in the Relationship table; • Final product is a list of all lung disorders that involve inflammation. To achieve these same results with a string search we would have to perform separate searches for | pneumonia |, bronchitis, | pleurisy | and many other conditions that cannot be linked via a sample string search. © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
4.4.2.5. Using navigation Subsets to display application-specific hierarchies The file structure of Subsets is described in detail in the Subset Mechanism (3.2.9.4) specification. This section explains how navigation Subsets may be used to create and display a customized hierarchy for use in an application. 4.4.2.5.1. Creating a navigation subset Let us take the example of a hospital specializing in the diagnosis and treatment of cancer. For the purposes of the application, the designers wish to have two top-level categories: "Diagnosis," including only diagnoses relating to the specialist area; and "Interventions," including subcategories for chemotherapy, radiation, and surgical treatments. First we would find the Concepts that we wish to go into the navigation hierarchy. A Subset can only include existing Concepts, by definition, so if any of the Concepts that we require do not exist in the SNOMED CT core files, they will have to be added, either by requesting new concepts from the IHTSDO, or via an approved Extension. For the sake of our example, let us assume that all the required Concepts are part of the SNOMED CT core concepts. The set of Concepts is shown in Table 249. Table 249: Sample Concepts for Navigation Subset Concept Identifier 309902002 55342001 362956003 108290001 69960004 387713003 Preferred Term | clinical oncology department | | neoplastic disease | | procedure / Intervention | | radiation oncology AND/OR radiotherapy | | antineoplastic chemotherapy regimen | | surgical procedure | In order to complete the navigation Subset we must add entries to the relational Subsets table, and to the Subset Members Table. For each new Subset an entry is required in the Subsets Table.The Subset Members Table uses the field LinkedID to specify the navigational children for each entry. The member status specifies the display order for the children. Table 250: Subsets Table Example Field Name SubsetId SubsetOriginalID SubsetVersion SubsetName Value 309902039 1.0 Clinical Oncology Department Terminology services Guide (RF1) | 323 © 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
Page 271 and 272: 3.3. Release Format 2 Update Guide
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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
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Page 289 and 290: was inactivated. Each Reference ind
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Page 297 and 298: In certain cases, an RF1 data file
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Page 315 and 316: • Description104951019 is elimina
Page 317 and 318: 4.4.1.4.1. Avoiding multiple hits o
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Page 333 and 334: Subsets may be used to derive table
Page 335 and 336: • One Subset can be used as the b
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Page 341 and 342: • A RealmID identifies the specia
Page 343 and 344: 4.5. Testing and traversing subtype
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Page 347 and 348: 4.5.5.2.4. Using the transitive clo
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
Page 361 and 362: A field in the Concepts Table that
Page 363 and 364: TargetId A SNOMED CT Identifier tha
Page 365: WordText A field in the Word Equiva
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