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

More documents

Recommendations

Info

18 | SNOMED CT Release Format 1 (RF1) Guide July 2012 Figure 7: Illustration of Defining Relationships 2.1.1.4. Common Features of Components This section describes common features of all SNOMED CT Components including identification and history management. 2.1.1.4.1. Component features - History The content of SNOMED CT evolves with each release. The types of changes made include new Concepts, new Descriptions, new Relationships between Concepts, new Cross Maps, and new Subsets, as well as updates and retirement of any of these components. Drivers of these changes include changes in understanding of health and disease processes; introduction of new drugs, investigations, therapies and procedures; and new threats to health, as well as proposals and work provided by SNOMED CT users. Once released, the unique Identifiers of SNOMED CT components are persistent, and their Identifiers are not reused. Concepts and Descriptions continue to be distributed even when they are no longer recommended for active use. This allows a current release to be used to interpret data entered using an earlier release. The ConceptStatus or DescriptionStatus fields are used to indicate the reason for inactivating a component.These reasons include errors, duplication of another component and ambiguity of meaning. Some SNOMED CT Concepts represent classification concepts that have imprecise and potentially changeable meanings. These are marked with the ConceptStatus"limited" and were considered active until the January 2010 release of SNOMED CT. All Limited (ConceptStatus = 6) concepts are now considered to be inactive. 2 2 Some Concepts derived from classifications such as ICD-10 include the abbreviations NOS (not otherwise specified) or NEC (not elsewhere classified). These are only valid in respect of a particular classification and change in their meaning if additional precisely defined codes are added to that part of the classification. © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
Other components (i.e. Relationships, Subsets, Cross Map Sets, Cross Maps and Cross Map Targets) are not distributed if they are no longer in active use. When a component is added, inactivated or otherwise changes its status, this is noted in the Component History Table. When a Concept is no longer in active use, is replaced by or duplicates another component, this is indicated by an appropriate historical relationship. When a Description, Subset or Cross Map Set is replaced by or duplicates another component, this is indicated by a row in the References Table. 2.1.1.4.2. Component features - Identifiers Components within SNOMED Clinical Terms are identified and referenced using numeric Identifiers. These Identifiers have the data type SCTID (SNOMED CT Identifier). The SCTID data type is 64-bit integer which is allocated and represented in accordance with a set of rules. These rules enable each Identifier to refer unambiguously to a unique component.They also support separate partitions for allocation of Identifiers for particular types of component and namespaces that distinguish between different issuing organizations . 2.1.2. Derivatives This section describes derivatives that are specified by and distributed as part of SNOMED CT. Derivatives are artifacts which are either required or useful to support some aspect of SNOMED CT enabled implementation. These artifacts are known as derivatives because they are derived from SNOMED CT Components and either add properties to them or specify sets of related components. All SNOMED CT enabled applications need to support some derivatives. The set of derivatives that need to be supported by an implementation depend on user requirements for particular types of functionality. Important aspects of functionality that require support for relevant derivatives include: • Tracking changes to the status of components; • Filtering and prioritizing searches; • Representing alternative navigation hierarchies; • Adding annotations to components; • Cross mapping to and from other coding schemes and classifications. 2.1.2.1. Reference Sets Reference Sets represent groups of components that share specified characteristics that affect the way the components are displayed or otherwise accessible within a particular realm, specialty, application or context. Different types of Reference Set are used to represent: Structure and Content Guide | 19 • Language and dialect variations in the use of particular terms to describe a Concept; • Subsets of component that are included in or excluded from the set of values that can be used in a particular country, organization , specialty or context; • Frequency of use of Descriptions or Concepts in particular country, organization , specialty or context; • Suitability of particular Concepts for use in a particular context in a record or message; • Structure and ordering of hierarchies displaying Concepts for user navigation. Reference Sets can be represented using the Subset and SubsetMembers files of Release Format 1 or using the Refsets files specified by Release Format 2. In both cases, each rows in these tables represents a Furthermore, a Concept that is not otherwise specified in ICD-10 may well be more precisely represented by another SNOMED CT Concept and thus from a SNOMED CT perspective "otherwise classified." © 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434
Page 1 and 2: SNOMED CT ® Release Format 1 (RF1)
Page 3 and 4: Contents | 3 Release Format 1 - Det
Page 5 and 6: Chapter 1 Preface The purpose of th
Page 7 and 8: Table 3: Document Types Type Name a
Page 9 and 10: IHTSDO Glossary (DRAFT) • On line
Page 11 and 12: Chapter 2 Structure and Content Gui
Page 13 and 14: Figure 1: Multiple levels of granul
Page 15 and 16: Table 5: Example: Defining arthriti
Page 17: The full definitions of the concept
Page 21 and 22: 2.1.2.2.1.3. Linking related Concep
Page 23 and 24: • Local content requirements that
Page 25 and 26: Consistent representation is a prer
Page 27 and 28: 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
Page 79 and 80:
An expression supports combinations
Page 81 and 82:
digitNonZero= %x31-39 The first cha
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
Page 131 and 132:
Table 51: Changes to Relationships
Page 133 and 134:
Table 52: Changes to Relationships
Page 135 and 136:
• The only Relationships that it
Page 137 and 138:
ComponentId ConceptId ReleaseVersio
Page 139 and 140:
A readme.txt file is distributed wi
Page 141 and 142:
Value 6 10 11 Limited Moved elsewhe
Page 143 and 144:
As new concepts are added to SNOMED
Page 145 and 146:
Table 73: DescriptionStatus Values
Page 147 and 148:
3.2.9.2.2.4. InitialCapitalStatus T
Page 149 and 150:
3.2.9.3. relationships tables Each
Page 151 and 152:
3.2.9.3.2.3. ConceptId2 Table 84: -
Page 153 and 154:
An integer value that expresses an
Page 155 and 156:
3.2.9.4.1.2.4. SubsetType Table 95:
Page 157 and 158:
A string that identifies a Context
Page 159 and 160:
3.2.9.4.2.1.2. Data Fields Table 10
Page 161 and 162:
• MemberStatus 3.2.9.4.2.3.1.1. S
Page 163 and 164:
3.2.9.4.2.4.1.3. MemberStatus Table
Page 165 and 166:
3.2.9.4.2.5.2. Data Fields Table 11
Page 167 and 168:
3.2.9.4.2.7.1.1. SubsetId Table 124
Page 169 and 170:
3.2.9.4.2.8.1.3. MemberStatus Table
Page 171 and 172:
3.2.9.4.3. Subset Definition File P
Page 173 and 174:
3.2.9.5.1.2.3. MapSetSchemeId Table
Page 175 and 176:
This discussion of rules is include
Page 177 and 178:
3.2.9.5.1.3.2.3. MapRule Table 151:
Page 179 and 180:
3.2.9.5.1.4.2.3. TargetRule Table 1
Page 181 and 182:
RELAT_NMS = column in the LOINC tab
Page 183 and 184:
The value of the SNOMED CT / LOINC
Page 185 and 186:
The SNOMED CT Relationships Table e
Page 187 and 188:
LOINC Analyte Name(s) DESMETHYLAMIO
Page 189 and 190:
LOINC Analyte Name(s) COMPLEMENT IC
Page 191 and 192:
The information provided includes d
Page 193 and 194:
3.2.9.6.4.1.2. ReleaseVersion Table
Page 195 and 196:
Value 6 7 8 9 10 11 Note: Name Limi
Page 197 and 198:
3.2.9.6.5.1.1. ComponentId Table 17
Page 199 and 200:
Release Format 1 is represents a sn
Page 201 and 202:
RF1 Descriptions Table Descriptions
Page 203 and 204:
Table 177: Concepts Table Use of re
Page 205 and 206:
Use of recommended additional indic
Page 207 and 208:
Use of recommended additional indic
Page 209 and 210:
Table 184: Cross Map Sets Table Use
Page 211 and 212:
Keys Partition Size Type Field Name
Page 213 and 214:
Table 192: Word Equivalents Table U
Page 215 and 216:
3.2.10. The Stated relationships ta
Page 217 and 218:
Figure 41: Overview of Cross Map Sc
Page 219 and 220:
Table 197: Cross Maps Sets Table Ma
Page 221 and 222:
Table 201: Cross Maps Sets Table Ma
Page 223 and 224:
Table 205: Cross Map Sets Table Map
Page 225 and 226:
If this approach is followed, there
Page 227 and 228:
This approach allows a more consist
Page 229 and 230:
1. A record may contain many record
Page 231 and 232:
• Temporally related to the selec
Page 233 and 234:
CONCEPTID 95333004 7119001 95336007
Page 235 and 236:
CONCEPTID 109778006 109788007 15270
Page 237 and 238:
CONCEPTID 417163006 417746004 12820
Page 239 and 240:
CONCEPTID 102706005 1677001 9145400
Page 241 and 242:
CONCEPTID 399023006 399154007 39905
Page 243 and 244:
CONCEPTID 399306005 399239005 39937
Page 245 and 246:
CONCEPTID 125086000 78678003 388393
Page 247 and 248:
CONCEPTID 339008 47002008 128419007
Page 249 and 250:
CONCEPTID 16817006 15367004 1580700
Page 251 and 252:
CONCEPTID 14509009 39250009 8627300
Page 253 and 254:
CONCEPTID 122868007 122465003 78817
Page 255 and 256:
CONCEPTID 19207007 74923002 6639100
Page 257 and 258:
CONCEPTID 54305003 84100007 3216600
Page 259 and 260:
CONCEPTID 255496004 255499006 24646
Page 261 and 262:
CONCEPTID 62834003 5668004 34810001
Page 263 and 264:
CONCEPTID 53224005 4150005 74636004
Page 265 and 266:
CONCEPTID 47538007 19359003 3011000
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
Page 281 and 282:
ContextId If either the RealmId fie
Page 283 and 284:
eplaced by more descriptive ones if
Page 285 and 286:
descriptions associated with concep
Page 287 and 288:
Figure 45: Illustration of module d
Page 289 and 290:
was inactivated. Each Reference ind
Page 291 and 292:
Finally, add members to the Referen
Page 293 and 294:
3.4.1. File Naming Convention - Ove
Page 295 and 296:
• Test/Beta Release File("xsct",
Page 297 and 298:
In certain cases, an RF1 data file
Page 299 and 300:
VersionDate refers to the official,
Page 301 and 302:
Example: Excluding the Fully Specif
Page 303 and 304:
4.2.1.3. Pre-processing of distribu
Page 305 and 306:
• Reject, highlight or apply othe
Page 307 and 308:
Table 236: Essential concept Identi
Page 309 and 310:
The purpose of this section of the
Page 311 and 312:
Table 240: Example results for a Se
Page 313 and 314:
• For each dual key, add rows to
Page 315 and 316:
• Description104951019 is elimina
Page 317 and 318:
4.4.1.4.1. Avoiding multiple hits o
Page 319 and 320:
Table 248: Relationship Example Con
Page 321 and 322:
• Since the depth of the hierarch
Page 323 and 324:
4.4.2.5. Using navigation Subsets t
Page 325 and 326:
Table 253: Concepts used in the Exa
Page 327 and 328:
SubsetId Mem
Page 329 and 330:
• 302402006 | radius and/or ulna
Page 331 and 332:
Now we have tree nodes and their ch
Page 333 and 334:
Subsets may be used to derive table
Page 335 and 336:
• One Subset can be used as the b
Page 337 and 338:
• A Context Concept Subset only r
Page 339 and 340:
• A Navigation Subset specifies a
Page 341 and 342:
• A RealmID identifies the specia
Page 343 and 344:
4.5. Testing and traversing subtype
Page 345 and 346:
This approach removes the need for
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
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?