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

This discussion of rules is included although rules are not yet used in the released SNOMED CT Cross Maps.
However, this feature may be of interest to implementers. See Cross Mappings Guide (3.2.11) for more
information.
3.2.9.5.1.3. Cross Maps Table
Each row in the Cross Maps Table represents one option for mapping a Concept to a Cross Map Target. If
there are several alternative Cross Maps for a Concept:
• Each option is represented by a row in the Cross Maps Table.
• Each row may include rules for choosing that option.
• The rules for choosing an option may be expressed as:
• Machine-processable instructions;
• Textual advice to support manual coding;
• Both of the above.
3.2.9.5.1.3.1. Key Fields
The Cross Maps Table contains the following key fields:
• MapSetId
• MapConceptId
• MapOption
3.2.9.5.1.3.1.1. MapSetId
Table 146: -
Cross Maps Table
Key Fields
MapSetId
Field Type
SCTID
Permitted characters
0 to 9
Length
6 to 18
The unique SNOMED CT Identifier for the Cross Map Set of which this Cross Map is a member.
3.2.9.5.1.3.1.2. MapConceptId
Table 147: -
Cross Maps Table
Key Fields
MapConceptId
Field Type
SCTID
The SNOMED CT Identifier of the mapped Concept.
Permitted characters
0 to 9
Release File Formats | 175
Length
6 to 18
© 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434