Technological developments have greatly promoted interest in the use of computer systems for recording findings and images at endoscopy and creating databases. The aim of this study was to develop a comprehensive WHO-approved code system for gastrointestinal endoscopic terminology. The International Classification of Diseases, 10th edition (ICD-10), and the ICD-10 clinical modification (ICD-10-CM) were expanded to allow description of every possible gastrointestinal endoscopic term under conditions defined by the WHO. Classifications of specific gastrointestinal disorders and endoscopic locations were added. A new chapter was developed for frequently used terminology that could not be classified in the existing ICD-10, such as descriptions of therapeutic procedures. The new extended code system was named Gastrointestinal Endoscopic Terminology Coding (GET-C). The GET-C is a complete ICD-10-related code system that can be used within every endoscopic database program for all specific endoscopic terms. The GET-C is available for free at

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Digestive Diseases and Sciences
Erasmus MC: University Medical Center Rotterdam

Groenen, M., Hirs, W., Becker, H., Kuipers, E., van Berge Henegouwen, G., Fockens, P., & Ouwendijk, R. (2007). Gastrointestinal Endoscopic Terminology Coding (GET-C): A WHO-approved extension of the ICD-10. Digestive Diseases and Sciences, 52(4), 1004–1008. doi:10.1007/s10620-006-9272-4