SNOMED Documentation Search
This document describes the mapping use cases and technical procedures applied to the co-development of a SNOMED CT to ICD-10 map by SNOMED International and the World Health Organization (WHO). This document provides guidance on the intended purposes and practical use of the mapping files produced from this development.
Web browsable version: http://snomed.org/icd10map
SNOMED CT Document Library: http://snomed.org/doc
© Copyright 2025 International Health Terminology Standards Development Organisation, all rights reserved. This document is a publication of International Health Terminology Standards Development Organisation, trading as SNOMED International. SNOMED International owns and maintains SNOMED CT®. Any modification of this document (including without limitation the removal or modification of this notice) is prohibited without the express written permission of SNOMED International. This document may be subject to updates. Always use the latest version of this document published by SNOMED International. This can be viewed online and downloaded by following the links on the front page or cover of this document. SNOMED®, SNOMED CT® and IHTSDO® are registered trademarks of International Health Terminology Standards Development Organisation. SNOMED CT® licensing information is available at http://snomed.org/licensing. For more information about SNOMED International and SNOMED International Membership, please refer to http://www.snomed.org or contact us at info@snomed.org. |
Latest PDF Version for Download: | Note This PDF document was generated from the web version on . Any changes made to the web pages since this date will not appear in the PDF. For information about recent changes please see Recent Updates. |
Search this document
Contents
1. Introduction
2. ICD-10 Map Overview
3. Scope and Procedures
4. Map Data Sets
5. Mapping Assumptions
6. Mapping Heuristics
- 6.1. Evaluation of Source Meaning
- 6.2. Choosing Initial Target Codes
- 6.3. Mapping Context - Gender
- 6.4. Mapping Context - Patient Age
- 6.5. Mapping Context - Acquired Versus Congenital
- 6.6. Multiple Targets - Poisonings
- 6.7. Multiple Targets - External Causes
- 6.8. Multiple Targets - Dagger and Asterisk
- 6.9. Mapping Context - Exclusions, Alpha Modifiers and Co-morbidities
- 6.10. Neoplasms
- 6.11. Location and Multiplicity at Birth
7. Data Structure and Distribution Format
Appendix A: mapRule Grammar and Formatting
Appendix B: Mapping Guide Examples
Previous Versions
Recent Updates
Feedback
Overview
Content Tools
Apps