As part of the International Classification of Disease (ICD) revision platform development tasks, the representation of the ICD10 in a formal terminology model is required. The ICD10 is originally rendered by the World Health Organization (WHO) in the Classification Markup Language (CLaML) format which is a European Standard for representing the content of medical classification systems. In this study, we explored representing the CLaML-based ICD10 in the LexGrid terminology model, a community based proposal for standard storage of controlled vocabularies and ontologies. The decision we made for mapping between two models and the merits for utilizing the LexGrid terminology model and service are discussed.