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

Table 44: Cross Map Targets Table
Key Fields
TargetId
Data Fields
TargetSchemeId
TargetCodes
TargetRule
TargetAdvice
3.2.6.2.4. SNOMED CT - LOINC ® Integration Table - Summary
The unique SNOMED CT Identifier for this Cross Map Target
A standard Identifier for the Target Scheme from which the
MapTargetCodes are derived
A code or list of codes in the Target Scheme that represent an
appropriate mapping for one or more Concepts
A machine processable expression of rules that determine the
combinations of conditions to which this Cross Map Target applies
Textual advice expressing the combinations of conditions to which this
Cross Map Target applies
The Laboratory LOINC 8 database provides a standardized set of names and codes for identifying laboratory
test results. Created by the Regenstrief Institute, the purpose of LOINC is to facilitate the exchange and
pooling of results for outcomes management and research. Each LOINC code represents a unique laboratory
test distinguished by six main parts that include the analyte measured, the property observed, the time aspect
involved, the sample or system type, the scale of measurement, and where relevant the method of
measurement. Taken together, these six components define a single laboratory test result. Additional details
about LOINC, including access to the LOINC database files, is available from
www.regenstrief.org/loinc/loinc.htm.
SNOMED CT is a clinical reference terminology. SNOMED CT concepts are explicitly represented in a
multi-hierarchical structure. Each of the six distinguishing parts of a given LOINC test result are found in
SNOMED CT and assigned in a hierarchy.
The integration exists as a table containing 11 columns. The first nine columns of the table are taken directly
from the Laboratory LOINC version 1l database. The last two columns contain concept Identifiers from
SNOMED CT that relate a specific component of the LOINC test to the SNOMED CT hierarchy.
See SNOMED CT - (3.2.9.5.1.5)LOINC ® Integration Table for details of the SNOMED CT - LOINC ® Integration
Table.
3.2.6.3. Released Cross Mappings
The following cross mappings are currently included in the International Release available from the IHTSDO.
• ICD-9-CM (Clinical Findings);
• ICD-O (Version 2, Version 3);
• LOINC Integration Table.
Release File Formats | 121
8 LOINC is a trademark of the Regenstrief Institute. Copyright 1995-2008, Regenstrief Institute and the Logical
Observation Identifier Names and Codes ( LOINC ®) Committee. All rights reserved.
© 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434