ICD API allows programmatic access to the International Classification of Diseases (ICD). It is an HTTP based REST API. You may use this site to access up to date documentation on using the API as well as managing the keys needed for using the API.
The list of available classification versions updateupdated with the 2024 release and additional languages
ICD-API Version 2.4 released update
ICD-API Version 2.4 released update
ECT version 1.7 released new version
ICD-11 License is now more open (more information)
Version 1 of the ICD-API is deprecated effective 31 December 2022 (more information)
RDF/XML support in the ICD-API (all versions) is deprecated effective 31 December 2022 (more information)